Designators for sessions belong to the lead section or committee abbreviation (i.e., A01 denotes Atmospheric Sciences, P01 denotes Planetary Sciences, etc.). Additionally, sessions are listed under all sections or committees who have agreed to sponsor particular sessions. These sessions are listed after the committee and section primary listing but with the lead section designation. Some technical committees have elected to only cosponsor sessions.
U01 Earth's Core: New Insights and Challenges
Recent observational and theoretical studies reveal major insights into the structure of the Earth's core and the dynamics at the center of the Earth but also pose new challenges. The progress was made at many fronts, including Geochemistry, Geodesy, Geomagnetism, Seismology, and Tectonophysics. This session will provide an interdisciplinary forum for presenting recent results and debates on the Earth's core. Topics include constraints on rotation of the inner core, fine structure of the inner core and influence of the mantle, theoretical and laboratory constraints on mineral properties at core conditions, geodynamo, core composition and formation, major and trace element partitioning during core crystallization, and interactions between the core and mantle.
Conveners: Xiaodong Song, Dept. of Geology, University of Illinois, , Urbana, IL 61801 USA, Tel: 217-333-1841, Fax: 217-244-4996, E-mail: xsong@uiuc.edu, and Lars Stixrude, Dept. of Geological Sciences, University of Michigan, 425 E. University Av., Ann Arbor, MI 48109-1063 USA, Tel: 734-647-9071, Fax: 734-763-4690, E-mail: stixrude@umich.edu, and Richard J. Walker, Dept. of Geology, University of Maryland, , College Park, MD 20742 USA, Tel: 301-405-4089, Fax: 301-314-9661, E-mail: rjwalker@geol.umd.edu, and William F. McDonough, Dept. of Geology, University of Maryland, , College Park, MD 20742 USA, Tel: 301-405-5561, Fax: 301-314-9661, E-mail: mcdonough@geol.umd.edu, and Daniel P. Lathrop, Dept. of Physics, University of Maryland, , College Park, MD 20742 USA, Tel: 301-405-1594, Fax: 301-301-1678, E-mail: dpl@complex.umd.edu
U02 Geophysics in the 20th Century: Contributions From Washington
In 1900, large-scale, systematic, and institutionalized research in Geophysics did not exist. By the end of the 20th century this had become the main model not only for geophysical research but also for essentially all of scientific research. This session - held on the occasion of the 100th anniversary of the founding of the Carnegie Institution of Washington (CIW) - will explore the historical legacies and interagency linkages which have contributed to the development of the geophysical sciences in the Washington, D. C. area over the last 100 years. The Nation's Capital plays a unique role as host to more organizations dedicated to some aspect of geophysical research (such as AAAS, American Geological Institute, AGU, CIW, Defense Mapping Agency, Geological Society of Washington, IRIS, JOI, Mineralogical Society of America, NASA, NIST, Naval Observatory, NOAA, Naval Research Lab, NSF, Smithsonian Institution, and USGS) than any other locale in the world. Contributions to this session are sought that will highlight the role of the Washington scientific community in the growth of Geophysics.
Conveners: Shaun J. Hardy, Carnegie Institution of Washington, 5241 Broad Branch Road, N.W., Washington, DC 20015 USA, Tel: 202-478-7960, Fax: 202-478-8821, E-mail: hardy@dtm.ciw.edu, and Steven B. Shirey, Department of Terrestrial Magnetism
Carnegie Institution of Washington, 5241 Broad Branch Road, N.W., Washington, DC 20015 USA, Tel: 202-478-8473, Fax: 202-478-8821
, E-mail: shirey@dtm.ciw.edu, and C. Susan Weiler, Biology Department, Whitman College
, , Walla Walla, WA 99362 USA, Tel: 509-527-5948, Fax: 509-527-5961, E-mail: weiler@whitman.edu, and William E Carter, University of Florida,
Department of Civil Engineering, 345 Weil Hall, PO Box 116580, Gainsville, FL 32611 USA, Tel: 352-392-5003, E-mail: bcarter@ce.ufl.edu
U03 Sustainability of Fresh Water, Fossil Fuels, Minerals, and Other Earth Resources: How Much, How Deep, How Expensive, and How Certain?
Sustainable development with finite supplies of fresh water, fossil fuels, and many other resources poses huge challenges for Earth science. How much fresh water, petroleum, coal, copper, etc., exists, and where? What will it take to extract these resources, and at what environmental cost? What is the fate of the expended resources and their by-products? What materials will replace the exhausted ones, and what is their future? Will we have the metals and other resources to develop alternatives to fossil fuels when the time comes? What are the uncertainties in our projections of future supply and costs? What new technologies may answer these questions? What basic scientific problems must be solved to improve resource management on national and global scales? How can scientists, economists, and policy makers collaborate to preserve the life-support systems of planet Earth?
Conveners: David D. Jackson, Department of Earth and Space Sciences, UCLA, 595 Young Dr. East, Los Angles, CA 90095-1567 USA, Tel: 310-825-0421, Fax: 310-825-2779, E-mail: djackson@ucla.edu, and P. Patrick Leahy, U.S. Geological Survey, 2201 Sunrise Valley Drive National Center 911 , Reston, VA 20191 USA, Tel: (703) 648-660, E-mail: pleahy@usgs.gov, and Hugo Loaiciga, Department of Geography and Environmental Studies,
University of California, Santa Barbara, , Santa Barbara, CA 93106-4060 USA, Tel: 805-893-8053, E-mail: hloaiciga@hotmail.com, and Laurie Brown, Department of Geosciences, Morrill Science Center University of Massachusetts , Amherst, MA 01003 UMI, Tel: 413-545-0245, E-mail: lbrown@geo.umass.edu
U04 Ice Sheets, Neotectonics, and Sea-Level Change
The Earth's response to past and present ice mass changes includes three-dimensional crustal motion and changes to sea level, the gravitational field, and mantle and lithospheric stress. In turn, ice sheet growth and stability is affected by the Earth's response because crustal subsidence affects the location of the grounding line and the height of the ice sheet. This session seeks contributions examining cryosphere-lithosphere interactions. Topics include, but are not limited to, discussions of new data or compilations related to present ice mass balance and past ice mass evolution; recent advances in glaciological modeling of ice sheet inception, growth, and decay, in particular the controls that isostasy may exert on the life cycle of an ice sheet; recent progress in glacio-isostatic modeling, including analysis of new data sets bearing on glacio-isostasy, new numerical and analytical techniques, and investigations of the effects of lateral crustal heterogeneity; and studies of interactions between ice sheet change, crustal stress, and seismicity. Contributions related to Antarctic neotectonics - its ice sheet history and present balance, the ensuing glacio-isostatic response, including crustal motion and sea level change, and patterns of seismicity and their relation to ice sheet balance - are especially welcomed.
Conveners: Thomas James, Geological Survey of Canada;
Pacific Geoscience Centre, 9860 W. Saanich Road, Sidney, BC V8L 4B2 CAN, Tel: 250-363-6403, Fax: 250-363-6565, E-mail: james@pgc.nrcan.gc.ca, and Jo Jacka, Australian Antarctic Division, Channel Highway, Kingston, TAS 7050 AUS, Tel: +61 3 6232 3365, Fax: +61 3 6232 3215, E-mail: Jo.Jacka@aad.gov.au
U05 Integrating Climate Research, Applications, and Assessment
Climate research is advancing our understanding of not only mechanisms of climate change and variability, but also interactions among climatic, ecological, and social systems. Climate scientists are increasingly challenged to apply their knowledge to predictive analysis of policy response options. Assessments are being conducted to synthesize advances in climate research and applications and to evaluate the relevance of these advances to societal concerns. New forms of discourse are being explored among scientists, stakeholders, decision makers, and citizens concerned with problems such as prioritizing key regional issues, characterizing relevant uncertainties, and assessing potential responses. A principal challenge now is to develop these discussions into ongoing strategies for integration of assessment findings into research planning and applications development. Speakers in this session will focus on the following themes: climate inputs for impact assessments; response of ecological and social systems to climate; development of assessment methods; building regional and local capacity for understanding and response; integration in government-funded programs. Invited and submitted papers should address the challenges and implications of integration from both research and societal perspectives.
Conveners: Jack Fellows, UCAR, PO Box 3000, Boulder, CO 80307-3000 USA, Tel: 303-497-8638, Fax: 303-497-8638, E-mail: jfellows@ucar.edu, and Eric T. Sundquist, U.S. Geological Survey, 34 Woods Hole Road, Woods Hole, MA 02543 USA, Tel: 508-457-2397, Fax: 508-457-2310,, E-mail: esundqui@usgs.gov
U06 Geophysics and Terrorism
The new global priority to fight terrorism will involve, directly and indirectly, geophysicists and data and knowledge produced by the research community. In one sense, the geoscience community is strongly positioned to serve as the technological equivalent of a "global" neighborhood watch program through the wide variety of environmental sensors and networks that monitor the Earth, oceans, atmosphere, and space. This session will consist of invited and contributed talks that discuss how current Earth and space science research and environmental monitoring are applicable and important to the broader societal goal of combating global terrorism. Topics and themes will include, but are not limited to, seismology, watershed monitoring and water resource infrastructure, plume migration at all scales in the hydrosphere and atmosphere, weather forecasting for military and counterterrorism applications, space weather, and parameters relevant to understanding and protecting against bioterrorism.
Conveners: Greg van der Vink, IRIS Consortium, 1200 New York Avenue, NW, Suite 800 , Washington, DC 20005 USA, Tel: 202-682-2220, Fax: 202-682-2444, E-mail: gvdv@iris.edu
A01 In Honor of Robert de Zafra's 70th Birthday
Bob de Zafra will be turning 70 years old this year. He has been a pioneer in ground-based microwave measurements of the stratosphere. His contributions go beyond just his own personal science. Many of the scientists doing experimental, analytical, and modeling studies of the stratosphere studied under Bob. We invite papers on how knowledge gained by ground-based remote sensing measurements of the middle atmosphere have helped advance our knowledge of stratospheric behavior. We also solicit contributions on contemporary investigations using ground-based remote sensing measurements to study the middle atmosphere.
Conveners: Marvin A Geller, SUNY Stony Brook, Marine Science Research Center 145 Endeavour Hall, Stony Brook, NY 11794-5000 USA, Tel: +1-631-632-8781, Fax: +1-631-632-8915, E-mail: mgeller@notes.cc.sunysb.edu, and Drew T Shindell, NASA GISS, 2880 Broadway, New York, NY 10025 USA, Tel: +1-212-678-5561, Fax: +1-212-678-5552, E-mail: dshindell@giss.nasa.gov
A02 Seventeen Years of SAGE II Data
On 5 October 2001, the Stratospheric Aerosol and Gas Experiment (SAGE II) passed the 17th anniversary of its launch aboard the Earth Radiation Budget Experiment. During this period, SAGE II data have significantly contributed to understanding trends and variability of ozone in the stratosphere and the long-term variability of aerosol including the 1991 eruption of Mount Pinatubo and the recent clean period. This session will focus on the recently released Version 6.1 including algorithms, validation, and comparisons with other platforms. In addition, applications of the new data set to understanding ozone and aerosol variability and other science applications will be addressed.
Conveners: Joseph M Zawodny, NASA Langley Research Center, Mail Stop 475, Hampton, VA 23693 USA, Tel: +1-757-864-2681, Fax: +1-757-864-2671, E-mail: j.m.zawodny@larc.nasa.gov, and Larry W Thomason, NASA Langley Research Center, Mail Stop 475, Hampton, VA 23693 USA, Tel: +1-757-864-6842, Fax: +1-757-864-2671, E-mail: l.w.thomason@larc.nasa.gov
A03 Atmospheric Impacts of Urban Air Pollution
Anthropogenic activities emit gaseous and particulate compounds into the atmosphere that significantly alter the air compositions on the urban scale. Recent studies have suggested that the changes in the atmospheric chemical compositions lead to changes in cloud microphysical and electrical properties. For instance, elevated aerosol concentrations may suppress the warm-rain process and enhance lightning. This session is intended to provide a forum for discussions of the potential impacts of human activities on the urban atmosphere. Papers are invited to assess the physical and chemical impacts of urban air pollution, on the basis of field, modeling, or laboratory studies.
Conveners: Richard E Orville, Texas A&M University, Department of Atmospheric Sciences 1204 Eller O&M Building 3150 TAMU, College Station, TX 77843-3150 USA, Tel: +1-979-845-9244, Fax: +1-979-862-4466, E-mail: orville@ariel.met.tamu.edu, and Renyi Zhang, Texas A&M University, Department of Atmospheric Sciences 1204 Eller O&M Building 3150 TAMU, College Station, TX 77843-3150 USA, Tel: +1-979-845-7656, Fax: +1-979-862-4466, E-mail: zhang@ariel.met.tamu.edu
A04 Upper Air Temperature Data Products for Climate Studies: Methods, Products, and Challenges
Changes in the atmospheric temperature profile are thought to be an important indication of climate change, and their vertical structure provides clues regarding the attribution of the changes to natural or forced variability. Detecting such changes requires high-quality, continuous data records that are relatively free of artificial signals, such as those associated with instrument drift or changes in observing systems. Recent controversy regarding differences in temperature trends from different data sets has motivated research efforts to create improved multidecadal data sets. Creation of homogeneous, global upper air temperature data records from satellites and radiosondes is challenging due to lack of reference temperature time series and a wide assortment of data sampling and quality issues. Papers dealing with the following topics are encouraged: methods used to quality control data, combine data from different observing systems, and remove artificial discontinuities; new climate data records for upper air temperature; comparisons among different data products; associated uncertainties in upper air temperature trends; challenges of creating historical data products from archived data; and improvements in future observing systems to facilitate more reliable trend analysis.
Conveners: Dian Seidel, NOAA Air Resources Laboratory, R/ARL 1315 East West Highway, Silver Spring, MD 20910 USA, Tel: +1-301-713-0295 x126, Fax: +1-301-713-0119, E-mail: dian.seidel@noaa.gov, and Frank Wentz, Remote Sensing Systems, 438 First Street, Suite 200, Santa Rosa, CA 95401 USA, Tel: +1-707-545-2904 x16, Fax: +1-707-545-2906, E-mail: wentz@remss.com
A05 Organic Aerosols in Past and Present Atmospheres
Organic aerosols are a very active area of research, with many laboratory and field measurements being performed, some with new techniques such as laser mass spectrometry and time of flight-secondary ion mass spectrometry, which are revolutionizing our understanding. We seek papers in these areas of laboratory and field measurement of organic aerosols and also contributions from those interested in the role of organic aerosols in the origin of life and in the laboratory synthesis of life.
Conveners: Adrian F Tuck, NOAA Aeronomy Laboratory, R/AL 325 Broadway, Boulder, CO 80305-3328 USA, Tel: +1-303-497-5485, Fax: +1-303-496-5373, E-mail: Adrian.F.Tuck@noaa.gov, and Jamie Donaldson, University of Toronto, Department of Chemistry, , CAN, E-mail: jdonalds@chem.utoronto.ca, and Heikki Tervahattu, University of Helsinki, , , FIN, E-mail: heikki.tervahattu@helsinki.fi, and Veronica Vaida, University of Colorado, , , USA, E-mail: vaida@spot.colorado.edu
A06 The Exchange of Chemically Reactive Trace Constituents Between Biosphere and Atmosphere
In this session the exchange of highly reactive trace species like ozone, nitric oxide, nitrogen dioxide, some volatile organic compounds (VOC), etc., between tall vegetation canopies and the atmosphere is to be considered. Furthermore, segregation effects owing to turbulence should also be elucidated.
Conveners: Gerhard Kramm, University of Alaska Fairbanks, Geophysical Institute 903 Koyukuk Drive P.O. Box 757320 , Fairbanks, AK 99775-7320 USA, Tel: +1-907-474-5992, Fax: +1-907-474-7290, E-mail: kramm@gi.alaska.edu, and Ralph Dlugi, AGAP, Gernotstrasse 11, Munich, D-80804 DEU, Tel: +49-89-3000-4258, Fax: +49-89-3000-4249, E-mail: rdlugi@gmx.de, and Peter Werle, Institute of Atmospheric Environmental Research, Kreuzeckbahnstrasse 19, Garmisch-Partenkirch, D-82467 DEU, Tel: +49 8821 183 170, E-mail: werle@ifu.fhg.de
A07 From Rain Gage to RANET to Radio: How Information Technology Is Transforming Forecast Communication
Just as supercomputing and network capacity have revolutionized the production of climate and weather information, technology is transforming the way this information is communicated and used. Innovative networks of old and new technology from satellite to Internet to radio are delivering climate and weather information to high-tech farms in the U.S. and nomadic herders in Africa. Papers are sought that describe how climate information networks are designed to meet the needs of a wide range of users and how new options for forecast delivery and use are, in turn, influencing the production of climate information itself.
Conveners: Macol Stewart, US Agency for International Development, RRB, Room 3.8-0 11300 Pennsylvania Avenue, NW, Washington, DC 20523 USA, Tel: +1-202-712-1724, E-mail: MaStewart@usaid.gov, and Christopher Miller, NOAA Office of Global Programs, 1100 Wayne Avenue, Suite 1225, Silver Spring, MD 20910 USA, Tel: +1-301-427-2089, E-mail: miller@ogp.noaa.gov, and Kelly Sponberg, NOAA Office of Global Programs, 1100 Wayne Avenue, Suite 1225, Silver Spring, MD 20910 USA, Tel: +1-301-427-2089 x194, E-mail: sponberg@ogp.noaa.gov
A08 AERONET: Aerosol Observations, Related Investigations, and Synergism
AERONET is an established internationally collaborative program of over 120 globally distributed ground-based sites measuring spectral direct solar irradiance and directional sky radiance. Owing to significant advances in inversion retrieval algorithms, data availability, and measurement accuracy, a broad scientific community has investigated aerosol optical properties, validated satellite aerosol retrievals, and participated in numerous multisensor field campaigns. We solicit papers addressing all aspects of AERONET-associated research including observed aerosol optical properties, radiative forcing, synergism with satellite observations, aerosol climatology, aerosol models, validation, aerosol polarization effects, aerosol effects on public health, and other associated research. We also welcome non-AERONET contributions from other studies of the optical properties of aerosols from airborne or ground-based instruments.
Conveners: Brent Holben, NASA Goddard Space Flight Center, Code 923, Greenbelt, MD 20771 USA, Tel: +1-301-614-6658, E-mail: brent@aeronet.gsfc.nasa.gov, and Alexander Smirnov, NASA Goddard Space Flight Center, Code 923, Greenbelt, MD 20771 USA, Tel: +1-301-614-6626, E-mail: asmirnov@aeronet.gsfc.nasa.gov, and Tom Eck, NASA Goddard Space Flight Center, Code 923, Greenbelt, MD 20771 USA, Tel: +1-301-614-6625, E-mail: tom@aeronet.gsfc.nasa.gov, and Oleg Dubovik, NASA Goddard Space Flight Center, Code 923, Greenbelt, MD 20771 USA, Tel: +1-301-614-6624, E-mail: dubovik@aeronet.gsfc.nasa.gov
A09 Balance in Atmosphere-Ocean Dynamics (BALANCE 2002)
This session is organized around the central theme of geophysical fluid dynamics, "balance." It is aimed at fundamental problems in geophysical fluid dynamics with applications in the fields of atmospheric science, oceanography, and the planetary sciences. For further details, see a longer session description given at www.fluid.tue.nl/users/neven. We encourage experimentalists, numericists, and theoreticians to discuss balance and related concepts and their use in understanding vortex-wave interactions in a wide variety of geophysical phenomena.
Conveners: John A Knox, University of Georgia, Driftmier Engineering Center, Athens, GA 30602 USA, Tel: +1-706-542-6067, Fax: +1-706-542-8806, E-mail: John.Knox@sigmaxi.org, and Eduard C Neven, Eindhoven University of Technology, Vortex Dynamics Group Fluid Dynamics Laboratory P.O. Box 513, Eindhoven, 5600 Mb NLD, Tel: +31-40-247-3110, Fax: +31-40-246-4151, E-mail: e.c.neven@tue.nl, and Steven N Shore, Indiana University South Bend, Department of Physics and Astronomy 1700 Mishawaka Ave, South Bend, IN 46634-7111 USA, Tel: +1-219-237-4401, Fax: +1-219-237-6589, E-mail: sshore@paladin.iusb.edu
A10 Fires, Scars, and Smoke: Observations, Impact, and Policies
Given increasing fire activity/intensity around the world and rich information generated by numerous observational programs, this session will be devoted to a wide range of fire-related studies including remote and in situ osbervation of all fire attributes (hot spots, burned scars, and smoke particulate and gas emissions) and applications of the observations in understanding fire impact on, and interaction with, weather, climate, environment and ecosystem; modeling fire spread and smoke transportation; as well as policy issues related to wildfire management.
Conveners: Zhanqing Li, University of Maryland, Department of Meteorology and ESSIC 2335 CSS Building, College Park, MD 20742-2465 USA, Tel: +1-301-405-6699, Fax: +1-301-405-8468, E-mail: zli@atmos.umd.edu, and Yoram J Kaufman, NASA Goddard Space Flight Center, Code 913, Greenbelt, MD 20771 USA, Tel: +1-301-614-6189, Fax: +1-301-614-6307, E-mail: kaufman@climate.gsfc.nasa.gov
A11 Calibration of Meteorological Satellite Sensors and Validation of Derived Products (POSTER ONLY)
Prelaunch and postlaunch calibration and characterization of meteorological satellite sensors are crucial to ensure the accuracy, continuity, and viability of satellite-derived geophysical products. Independent validation of the geophysical products thus derived will in turn establish their usability in Earth system studies. Papers are solicited in the broad areas of (1) prelaunch and postlaunch calibration of meteorological satellite sensors; (2) intercalibration of sensors in the generation of merged geophysical records; (3) onboard calibration; (4) propagation of calibration uncertainties in product generation; (5) rehabilitation of long-term satellite-derived geophysical records; (6) procedures for product validation; (7) product validation campaigns; and (8) international collaborative and cooperative efforts.
Conveners: Shoba Kondragunta, NOAA/NESDIS, Office of Research and Applications E/RA1, World Weather Building, Room 810 5200 Auth Road, Camp Springs, MD 20746 USA, Tel: +1-301-763-8136 x151, Fax: +1-301-763-8034, E-mail: Shoba.Kondragunta@noaa.gov, and Changyong Cao, NOAA/NESDIS, Office of Research and Applications E/RA1, World Weather Building, Room 810 5200 Auth Road, Camp Springs, MD 20746 USA, Tel: +1-301-763-8136, Fax: +!-301-763-8034, E-mail: Changyong.Cao@noaa.gov, and Matt DeLand, Science System and Applications Incorporated, 10210 Greenbelt Road Suite 400, Lanham, MD 20706 USA, Tel: +1-301-867-2164, Fax: +1-301-867-2151, E-mail: matt_deland@sesda.com
A12 Physics and Chemistry Near the Tropical Tropopause
The transition from troposphere to stratosphere in the tropics has come to be understood as a gradual one, rather than a sudden change at a sharp material boundary. This applies to thermodynamic, chemical, dynamical, and radiative properties. Mechanisms that are important in either the troposphere or stratosphere may interact in novel ways in this poorly observed and understood region, spanning at least from 14 to 19 km. Most stratospheric air is believed to be processed through this region. This frontier region may also be significant as a proving ground for theories or models of processes that have so far been validated only in the main troposphere or stratosphere where the processes are most obvious. We solicit papers that explore the properties and physical and chemical processes near the tropical tropopause. This includes studies of dynamical mixing, gravity and Kelvin waves, convection, thin cirrus clouds, dehydration and chemistry, and/or radiative transfer near the tropopause, or mechanisms that connect the tropical upper troposphere and lower stratosphere.
Conveners: Andrew Dessler, University of Maryland, Earth System Science Interdisciplinary Center 2207 Computer and Space Science Building, College Park, MD 20742-2465 USA, Tel: +1-301-405-5337, Fax: +1-301-405-8468, E-mail: dessler@metosrv2.umd.edu, and Steven Sherwood, Yale University, P.O. Box 208109, New Haven, CT 06520-8109 USA, Tel: +1-203-432-3167, Fax: +1-203-432-3134, E-mail: Steven.Sherwood@yale.edu
A13 Nonequilibrium Phenomena in Open Geophysical Systems
This session will focus on recent research on nonequilibrium processes and dissipative phenomena in open geophysical systems. Dissipative structures and related fractal scaling, which often appear in nonequilibrium systems, are recognized features of a number of geophysical systems and have applications in weather forecasting, climate characterization and prediction, anthroprogenetic changes in the atmosphere, and many more. We will address these issues by attracting papers on the global and local structures of geophysical fluids, the evolution of open systems, transport properties and scaling of turbulence, and energetics of the nonequilibrium systems. These include dissipative and evolutionary properties of the atmosphere and ocean, as well as mantle convection, long-range structures and correlations in earthquake fault systems, and extreme properties in the complex geophysical and extraplanetary geophysical fields.
Conveners: Vyacheslav M Somsikov, Institute of Ionosphere, , , 480020 KAZ, Tel: +8-3272-697971, Fax: +8-3272-65-0993, E-mail: nes@kaznet.kz
A14 Variability of Storm Tracks
Recent analyses of storm track variability by several groups have suggested that the Northern Hemisphere storm tracks have undergone significant interdecadal variability during the past few decades, and the storm track intensity may have been on an upward trend since the 1960s. The strengths of storm tracks have clear implications on local climate over the midlatitudes, as well as hemispheric impact on the energy and hydrological cycle. Better diagnoses and understanding of this phenomenon would have significant implications on our understanding of climate variability and change.
Conveners: Edmund Chang, State University of New York, ITPA/MSRC, Stony Brook, NY 11794-5000 USA, E-mail: chang@atmsci.msrc.sunysb.edu
A15 Midlatitude Stratospheric Ozone Loss: Understanding the Effects of Chemistry and Dynamics
Some researchers consider chemical reactions arising from anthropogenic compounds as a viable mechanism to explain observed midlatitude stratospheric ozone loss. Others find evidence for a strong dynamical component, arising in part from climate change issues. This session seeks papers discussing attempts to quantify the chemical and dynamical contributions to midlatitude ozone loss.
Conveners: Stephen J Reid, NOAA Aeronomy Laboratory, R/AL6 David Skaggs Research Center 325 Broadway, Boulder, CO 80303-3328 USA, Tel: +1-303-497-7942, Fax: +1-303-497-5373, E-mail: sreid@al.noaa.gov, and Jennifer A Logan, Harvard University, 108 Pierce Hall, Cambridge, MA 02138-3800 USA, Tel: +1-617-495-4582, Fax: +1-617-495-9837, E-mail: jal@io.harvard.edu
A16 Wet and Dry Atmospheric Deposition: Scientific Advances and Policy Developments
The understanding of the chemistry, physics, and biosphere-atmosphere interactions of atmospheric deposition, both wet and dry, is improving through modeling studies and observational programs. Nationwide wet and dry deposition monitoring networks have been in operation long enough to have developed an understanding of deposition, along with an understanding of its variation in time and space. These advances, and the push by Congress and the Administration for more cost-effective means of pollution control, are driving policy changes that could have major implications for the industrial community and the environment. This session will explore both scientific advances and policy developments in the field of atmospheric deposition.
Conveners: Peter Finkelstein, EPA, Atmospheric Modeling Division MD-80, Research Triangle Pk, NC 27711 USA, Tel: +1-919-541-4553, E-mail: Finkelstein.Peter@epamail.epa.gov, and Gary Lear, EPA, Clean Air Markets Division, , USA, E-mail: Lear.Gary@epamail.epa.gov
A17 Ice Cores: Glaciology and Environmental Change
Variations in the physical, biological, and chemical or isotopic content through layered snow and ice can provide substantial insight into past environmental conditions and climate variability. Extension of these site-specific records via satellite- or ground-based studies establishes their broader significance. Retrieval and analysis of these signals has led to significant advances in understanding the role of the cryosphere in global climate. In this session, we encourage submission of studies that pursue understanding of dynamic glaciologic problems as well as detectable natural and anthropogenic changes in climate conditions. We encourage submissions that link these studies to glaciologic modeling, remote sensing, oceanography, hydrology, and atmospheric science, as this will facilitate the development of a broad Earth system context. Both oral and poster presentations are welcome.
Conveners: Christopher A Shuman, NASA Goddard Space Flight Center, Oceans and Ice Branch Laboratory for Hydrospheric Processes, Greenbelt, MD 20771-0001 USA, Tel: +1-301-614-5706, Fax: +1-301-614-5644, E-mail: christopher.shuman@gsfc.nasa.gov, and Eric J Steig, University of Washington, Quaternary Research Center Department of Earth and Space Sciences 19 Johnson Hall, Seattle, WA 98195-1360 USA, Tel: +1-206-685-3715, Fax: +1-206-543-3836, E-mail: steig@u.washington.edu, and James W. C. White, University of Colorado, INSTAAR 450 UCB, Boulder, CO 80309-0450 USA, Tel: +1-303-492-5494, E-mail: james.white@colorado.edu
A18 Observations and Retrievals of the Ocean Surface Radiation Field and Aerosols Using Field Campaign Data Including the Chesapeake Lighthouse and Aircraft Measurements for Satellites (CLAMS) Experiment
The Chesapeake Lighthouse and Aircraft Measurements for Satellites (CLAMS) field experiment (10 July to 2 August, 2001) targeted atmospheric aerosols and the radiation field at the sea surface under cloud-free conditions. The emphasis was on the validation and improvement of satellite retrievals of aerosols, aerosol radiative forcing to climate, and ocean optics boundary conditions. Data were collected at the Chesapeake Lighthouse ("COVE") sea platform 15 miles off the coast of Virginia Beach, from coastal stations, and from a variety of aircraft and satellite sensors. NOAA buoys farther out at sea provided additional information on sea conditions. CLAMS participants included members of NASA's EOS CERES, MISR and MODIS science teams and the Global Aerosol Climatology Project (GACP), as well as six universities. The intent of this session is to report CLAMS and related science results and to introduce the CLAMS database to a wider community of atmospheric, ocean, and remote sensing scientists.
Conveners: Thomas P Charlock, NASA Langley Research Center, MS 420, Hampton, VA 23681-0001 USA, Tel: +1-757-864-5687, Fax: +1-757-864-7996, E-mail: t.p.charlock@larc.nasa.gov, and William L Smith, NASA Langley Research Center, , Hampton, VA 23681-0001 USA, E-mail: w.l.smith@larc.nasa.gov
A19 Policy-Relevant Versus Policy-Driven Atmospheric Chemistry Research: What Role Do Policy Applications Play in Determining Questions, Methods, and Funding?
We invite members of atmospheric chemistry and policy communities to discuss how policy applications affect scientific research on air quality. Session participants are encouraged to address questions such as the following: (1) When do funding priorities shape the science, and when do the scientific questions shape funding priorities? (2) How do agencies who need scientific information use policy-driven studies versus external research with varying degrees of policy relevance? (3) How have scientists adapted their research goals or program structures to meet the needs of the policy community?
Conveners: Tracey Holloway, Columbia Earth Institute, 405 Low Library, 535 West 116th Street, New York, NY 10027 USA, Tel: +1-212-854-9934, Fax: +1-212-854-6309, E-mail: th2024@columbia.edu, and Arlene Fiore, Harvard University, 29 Oxford Street, Cambridge, MA 02138 USA, Tel: +1-617-495-4577, Fax: +1-617-495-4551, E-mail: afiore@fas.harvard.edu, and Meredith (Galanter) Hastings, Princeton University, Department of Geosciences, Guyot Hall, Princeton, NJ 08544 USA, Tel: +1-609-258-4124, Fax: +1-609-258-0796, E-mail: galanter@princeton.edu
Atmospheric Sciences also presents jointly with the following sessions:
B01 Effects of Land Use on Net Primary Production of Terrestrial Ecosystems
B02 Biogeochemistry and Conservation Biology
H21 Global Precipitation Mission for Hydrology and Hydrometeorology
B03 Closing the N2O Budget Through Isotopic Discrimination
B08 Ecohydrology of Arid and Semiarid Ecosystems
B09 Intercomparison of Primary Production Models and Field Observations
B10 Bridging the Gap Between Ecosystem and Atmospheric Studies of Ecosystem-Atmosphere CO2 Fluxes
G01 Integrating Space Geodetic Techniques and Results for Global Earth Observing
G02 GPS Navigation as a Tool for Earth Science
H15 Predictability in Hydrometeorology
H20 Remote Sensing of Precipitation (Poster Only)
H22 Advances in Understanding the Global Water Cycle
H23 Remote Sensing, Hydrology, and Field Experiments
H25 Operational Monitoring of the Arctic Hydrological System
SA03 The Mesosphere/Lower Thermosphere Region: Structure, Dynamics, Composition, and Emission
GC02 Atlantic Decadal Variability
GC03 Pacific Decadal Variability
SA01 New Results and Approaches to Observations of the Atmospheric Limb
GC04 Carbon Management Technologies: Feasibility, Impacts, Risks, and Economics
GC05 Comparing Arctic Models
GC06 Reconstruction and Understanding the Late Maunder Minimum Climate Anomaly
B07 Land-Atmosphere Interactions
H24 Land-Atmosphere Interaction and the Atmospheric Boundary Layer
B00 General Contributions
Contributions relevant in any area over the full spectrum of the Biogeosciences may be submitted to this series of the sessions. Accepted contributions will be organized into appropriate topical sessions. More than half the papers contributed for AGU meetings will not find a home in the pre-approved sessions suggested by a variety of conveners. Papers submitted to these sessions give the program chairs an opportunity to fashion a backbone for the meeting and determine what the broad range of contributors feel is important in the section right now. Biogeosciences emphasizes linkages between biological sciences and geophysical sciences fundamental to study of the Earth and other planets. Research areas within the section include biogeochemistry, biogeophysics, astrobiology, and planetary ecosystem science. Those interested in advancing the understanding of coupled biological and geophysical processes and phenomena in emerging research areas in biology, ecology and earth and planetary science should submit general contributions. Some examples of such processes include, but are not limited to: biosphere-atmosphere-climate interactions, nutrient cycles and their interactions and feedbacks to abiotic processes, effects of stream flow patterns on aquatic biodiversity, extinction events in Earth history and existence of life under extreme conditions on Earth or other planets.
Convener: Ruth Defries, University of Maryland, USA, E-mail: rd63@umail.umd.edu
B01 Effects of Land Use on Net Primary Production of Terrestrial Ecosystems
The productivity of terrestrial ecosystems is a key determinant of the net exchange of carbon dioxide (CO2) between terrestrial ecosystems and the atmosphere, and hence atmospheric CO2 concentration. It is also the primary source of food and other resources for humans and other species. Humans have altered the productivity of terrestrial ecosystems by changing the climate, atmospheric chemistry, land use, and age structure of forests. The objective of the session will be to use empirical field studies, data synthesis activities, and process models to examine the effects of the various land use changes on net primary production of terrestrial ecosystems. Spatial scales can range from case studies to global synthesis, with an attempt to obtain a balanced coverage of all the major terrestrial ecosystems. Participants are strongly encouraged to place their results into a larger context, such as expressing their results relative to effects of elevated CO2 on NPP.
Conveners: Stith T. Gower, University of Wisconsin, Department of Forest Ecology and Management, University of Wisconsin,, Madison, WI 53706 USA, Tel: (608) 262-0532, Fax: (608) 262-9922, E-mail: stgower@facstaff.wisc.edu, and Navin Ramankutty, University of Wisconsin, Center for Sustainability and the Global Environment, Institute for Environmental Studies,, Madison, WI 53706 USA, Tel: (608) 265-0604, Fax: (608) 265-4113, E-mail: nramanku@facstaff.wisc.edu
B02 Biogeochemistry and Conservation Biology
This session focuses on the connections between Biogeochemistry and Conservation Biology and the relationships of these connections to environmental policy. Biogeochemistry and Conservation Biology are currently the locus of much research involving land use and climate change impacts. However, to a large extent they have remained conceptually and practically separate. Speakers will address the links among some of the classical issues in these fields and the opportunities for each discipline to inform the other. In particular, there will be an emphasis on the links between biological diversity and biogeochemical processes. Recent advances in the direct and remote assessment of diversity and in the measurement of biogeochemical processes will be discussed. The session will also address the status of biogeochemistry and conservation biology within the framework of current environmental policy and law.
Conveners: Manuel Lerdau, State University of New York, Associate Professor Ecology and Evolution Department and Institute for Terrestrial and Planetary Atmospheres, Stony Brook, NY 11794-5245 USA, Tel: (631) 632-6633, Fax: (631) 632-7626, E-mail: manuel.lerdau@sunysb.edu, and Marcy Litvak, University of Texas, Professor Biology Department, Austin, TX USA, E-mail: mlitvak@mail.utexas.edu, and Ken Griffin, Columbia University, Professor LDEO, New York, NY USA, E-mail: griff@ldeo.columbia.edu
B03 Closing the N2O Budget Through Isotopic Discrimination
Nitrous oxide (N2O) is a potent greenhouse gas and catalytic destroyer of stratospheric ozone with an atmospheric residence time of about 150 years. The concentration of N2O has been steadily increasing in the atmosphere over the past several years, but the budget is still incomplete. Unarguably, the primary source of N2O to the atmosphere is from biological activity in oceans and soils. Increased fertilizer usage has especially stimulated the rates of microbial nitrification and denitrification, the main activities which lead to N2O production. Over the past 10 years, a powerful approach has been employed to constrain the possible biological sources of N2O from various environments by examining the distribution of N and O isotopes within emitted N2O molecules. Combined with the preferential destruction of specific N2O isotopomers in the stratosphere, we are now closer than ever to closing the N2O budget in both its sources and sinks. This session will highlight recent advances in quantifying the sources and sinks of N2O using isotopic discrimination techniques by providing biochemical hypotheses for how N2O isotopic discrimination occurs, describing spectroscopic techniques for measuring N2O isotopomers, and presenting data that further quantify the N2O budget in natural systems.
Conveners: Lisa Y. Stein, University of California, Department of Environmental Science Geology 2217, Riverside, CA 92521 USA, Tel: (909) 787-2704, E-mail: Lisa.Stein@ucr.edu, and Yuk L. Yung, California Institute of Technology, Division of Geological and Planetary Sciences M/C 170-25, Pasadena, CA 91125 USA, Tel: (626) 395-6940, E-mail: yly@mercu1.gps.caltach.edu
B04 Species Populations and Relationships to Climate and Water Quality
Biological indicators increasingly are being used to evaluate human impacts on the environment. Declines in populations of many species have prompted efforts to assess species abundance and to consider causes of declines. For example, a worldwide decline in amphibian populations was initially recognized in the late 1980s and has since been confirmed by the scientific community. Many of the potential stresses to biota are related to climate and water quality. This session seeks papers that link population dynamics of biota to climate and the water quality of their environments. Papers that address interdisciplinary studies in the following areas are especially welcomed: long-term studies of population dynamics, malformations, habitat loss or fragmentation, pathogens, introduced species, contaminants, episodic events.
Conveners: Karen C. Rice, U.S. Geological Survey, P.O. Box B, Charlottesville, VA 22903 USA, E-mail: kcrice@usgs.gov, and William A. Battaglin, U.S. Geological Survey, Box 25046 Denver Federal Center, Denver, CO 80225 USA, E-mail: wbattagl@usgs.gov
B05 Use of Remote Sensing as Policy-Relevant Information
As public awareness grows that weather phenomena, climate change, water resources, and land use are inescapeably linked to human activities, health, and prosperity through various degrees of cause and effect, policy makers are forced to make decisions that often lack historical precedent. At the same time, advances in remote sensing and the products derived from satellite observations, including data assimilating model results, are revolutionizing our understanding of the Earth system and increasing its predictability. Therefore it is imperative that the gap be bridged between lawmakers and scientists so that policy reflects the most current state of knowledge and embraces developing information systems. This session will encompass remote sensing based research and applications that have influenced, do influence, or should influence policy decisions, address the scientific needs of policy makers, and describe both successes and deficiencies in the link between Earth science and policy.
Conveners: Robert J. Plante, Raytheon Corporation, , , USA, Tel: (301) 925-0898, E-mail: rplante@eos.east.hitc.com, and Peter Gilruth, Raytheon, Corporation, , , USA, Tel: (301) 925-0480, E-mail: pgilruth@eos.east.hitc.com, and Matt Rodell, NASA Goddard Space Flight Center, Hydrological Sciences Branch, Code 974, Greenbelt, MD 20771 USA, Tel: +1-301-614-5811, Fax: +1-301-614-5808, E-mail: mattro@dao.gsfc.nasa.gov
B06 Contributions of Biogeosciences to the Millennium Ecosystem Assessment
The Millennium Ecosystem Assessment is an international effort to assess the state of the world's ecosystems and their abilities to provide goods and services important for human development. The assessment will involve the contributions of hundreds of scientists over the next several years and will provide information to policy makers on the current and future condition of ecosystems (see http://www.ma-secretariat.org/). This session will explore the contributions from the biogeosciences that make such an assessment possible, including observation and modeling studies on a range of ecosystems at regional and global scales.
Conveners: Anthony Janetos, World Resources Institute, 10 G St., NE, Washington, DC 20002 USA, Tel: (202) 729-7600, Fax: (202) 729-7610, E-mail: ajanetos@wri.org
B07 Land-Atmosphere Interactions
This session provides a forum for reporting on recent studies of land-atmosphere interaction at various spatial and temporal scales. Field experiments, remote sensing analyses, and modeling studies are all welcome. Energy and water exchanges between the land and atmosphere will be considered, as will studies of vegetation impacts and the impacts of land-atmosphere exchange on climate.
Conveners: Randal Koster, Goddard Space Flight Center, , Greenbelt, MD 20771 USA, E-mail: randal.koster@gsfc.nasa.gov, and Paul Dirmeyer, Center for Ocean-Land-Atmosphere Studies, 4041 Powder Mill Rd. Suite 302, Calverton, MD 20705-3106 USA, Tel: (301) 595-7000, Fax: (301) 595-9793, E-mail: dirmeyer@cola.iges.org
B08 Ecohydrology of Arid and Semiarid Ecosystems
In water-limited ecosystems, hydrologic processes have a most significant impact on plant physiology, nutrient cycles, fluxes of CO2 and water vapor, biomass production, plant growth and (plant) population dynamics. This session solicits papers on the analysis of terrestrial ecosystems in water-limited environments at different spatial and temporal scales. Both hydrological and ecological studies on the role of the water cycle in soil-vegetation systems will be important contributions to the discussion. The aim of this session is to enhance, through the results of field studies and modeling efforts, the understanding of the hydrologic and ecologic mechanisms controlling ecosystems dynamics in arid and semiarid climates.
Conveners: Paolo D'Odorico, University of Virginia, Department of Environmental Sciences 291 MCormick Rd. Box 400123, Charlottesville, VA 22904-4123 USA, Tel: (434) 924-3964, Fax: (434)982-2137, E-mail: paolo@virginia.edu, and Amilcare Porporato, Polytechnic of Turin, Department of Hydraulics, Transportations, and Civil Infrastructures, Torino, 10129 ITA, Tel: (39) 011 564 5617, Fax: (39) 011 564 5698, E-mail: porporato@polito.it
B09 Intercomparison of Primary Production Models and Field Observations
The continuing challenge of understanding the carbon cycle has led to a new era in which extensive field measurements of primary production and related components of the carbon cycle are becoming available. Most models that are capable of global application are limited in spatial resolution by the availability of forcing data. This session will solicit presentations on new data compilations, including recent syntheses from the literature as well as new field observations. Presentations on the issues involved in comparing model results that are at a coarser spatial resolution than the field data will be encouraged. The main emphasis will be on comparisons of these new data with the results of current models. The session as a whole is designed to review progress and identify new opportunities for modeling of primary production and its contribution to the need for monitoring the global carbon cycle.
Conveners: Stephen D. Prince, University of Maryland, Department of Geography 2181 LeFrak Hall, College Park, MD 20742 USA, Tel: (301) 405-4062, Fax: (301) 314-9299, E-mail: sp43@umail.umd.edu, and Kathy A. Hibbard, University of New Hampshire, IGBP/IHDP/WCRP International Carbon Cycle Joint Project Morse Hall, Durham, NH 03824 USA, Tel: (603) 862-4255, Fax: (603) 862-2124, E-mail: kathyh@eos.sr.unh.edu
B10 Bridging the Gap Between Ecosystem and Atmospheric Studies of Ecosystem-Atmosphere CO2 Fluxes
Process-level studies, including eddy-covariance flux towers, yield a mechanistic understanding of the dynamics of ecosystem-atmosphere CO2 exchange, though on a small scale relative to biomes, continents, or the globe. The atmosphere integrates ecosystem-atmosphere CO2 exchange over very large scales. Thus the rate of change and spatial distribution of atmospheric CO2 mixing ratios provide the ability to infer ecosystem-atmosphere exchange of CO2 at global and zonal scales. The gap in spatial scales between these approaches is very large. This gap limits our ability to connect the process-level understanding derived from direct flux observations to the observed global atmospheric CO2 budget. We invite presentations of studies that attempt to bridge this gap in spatial scales. Possible topics include upscaling tower fluxes using ecosystem models and remote sensing, regional experiments using boundary layer budgets or airborne eddy-covariance measurements, or syntheses of multiple flux towers across regional to global scales.
Conveners: Kenneth Davis, The Pennsylvania State University, Department of Meteorology 512 Walker Bldg., University Park, PA 16802 USA, Tel: (814) 863-8601, Fax: (814) 865-3663, E-mail: davis@essc.psu.edu, and Scott Dennining, Colorado State University, , , USA, E-mail: denning@atmos.colostate.edu, and David Hollinger, USDA Forest Service, , , USA, E-mail: davidh@hypatia.unh.edu
B11 The Effects of Urban/Suburban Development on Nutrient Cycling Processes and Water Quality
Human development in urban and suburban settings affects nutrient cycling and water quality through additions of septic waste, treated sewage, pesticides, and fertilizer to the landscape. Alteration of preexisting runoff patterns by paved and other impermeable surfaces results in rapid delivery of these pollutants to waterways accompanied by enhanced sediment loads, resulting in impacts on the biological community. Additionally, soil and groundwater environments are altered by the movement of these same pollutants through the subsurface. Because some of these pollutants are also nutrients, changes in the types and rates of biotic and abiotic nutrient cycling processes such as mineralization, adsorption/desorption, and reduction may also result. Management of storm water runoff through creation of detention basins and wetlands may partially mitigate these adverse impacts. Contributions for this session are sought from investigators who have studied the effects of urban and suburban development on water quality and the resulting impacts on nutrient cycling processes in aquatic and terrestrial biological communities. Presentations focusing on the effects of mitigation strategies are also welcomed.
Conveners: Doug Burns, U.S. Geological Survey, Watersheds Research Section 425 Jordan Rd., Troy, NY 12180-8349 USA, Tel: +1-518-285-5662, Fax: +1-518-285-5601, E-mail: daburns@usgs.gov
B12 Lake Vostok: An Ancient System?
The goal of this proposed biogeoscience session is to bring together the community of scientists interested in the biota of deep subglacial lakes and the physical scientists interested in the glacial and tectonic boundary conditions. Lake Vostok is a deep subglacial lake capped by 4 km of ice resting in the center of East Antarctica. Recent identification of viable microbes in frozen samples of the lake water raises the possibility of a viable ecosystem within the lake, isolated from direct exchange with the atmosphere for millions of years. The overlying ice sheet delivers a flux of particles and microbes into the lake. The location of the lake along a major geologic boundary indicates the subglacial geology controls the location and form of the lake. This unique and ancient system represents an unusual convergence of glaciologic, biologic, and tectonic processes.
Conveners: Robin E. Bell, Lamont-Doherty Earth Observatory of Columbia, , Palisades, NY 10964-8000 USA, Tel: +1-845-365-8827, Fax: +1-845-365-8179, E-mail: robinb@ldeo.columbia.edu, and John C. Priscu, Montana State Univ, Land Resources and Environmental Sciences, 334 Leon Johnson Hall, Bozeman, MT 59717 USA, Tel: +1-406-994-3250, Fax: +1-406-994-5863, E-mail: jpriscu@montana.edu, and Michael Studinger, Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY 10964-8000 USA, Tel: +1-845-365-8598, Fax: +1-845-365-8179, E-mail: mstuding@ldeo.columbia.edu
B13 The Stimulation of Plant Production by Rising Atmospheric CO2: Did it Trigger Settled Life and Food Production at the End of the Last Glacial?
This session will explore the roles of the climate change and the rapid increase in atmospheric CO2 concentration from about 190 ppm during the Last Glacial Maximum to about 250 ppm at the appearance of settled life and food production. What was the climate during and following the LGM at the loci of the origins of food production? Did low production of food plants require nomadic life, and if so, was it increased production of the early domesticates that led to a shift to settled life? What were the relative roles of climate and CO2 in the stimulation of plant production? What factors would have favored plant survival at low CO2 and the climate of the LGM, and were plants different at that time than modern representatives of the founder species? These questions will be addressed by anthropologists, plant physiologists, ecologists, and climatologists.
Conveners: Bert G. Drake, Smithsonian Environmental Research Center, PO Box 28, Edgewater, MD 21037 USA, Tel: +1-443-482-2294, E-mail: BM_1_ drake@serc.si.edu, and Rowan Sage, University of Toronto, Department of Botany, Toronto, ONT M5S 3B2 CAN, Tel: +1-416-978-7660, E-mail: rsage@botany.utoronto.ca
Biogeosciences also presents jointly with the following sessions:
H11 Water Quality of Natural Systems (Poster Only)
A05 Organic Aerosols in Past and Present Atmospheres
A06 The Exchange of Chemically Reactive Trace Constituents Between Biosphere and Atmosphere
A10 Fires, Scars, and Smoke: Observations, Impact, and Policies
A16 Wet and Dry Atmospheric Deposition: Scientific Advances and Policy Developments
A17 Ice Cores: Glaciology and Environmental Change
H03 Characterization and Monitoring of Groundwater Geochemistry and Bioavailability: Impact of Recent Advances in Analytical Chemistry
H08 Hydrology and Transport of Contaminants in Riparian Zones
H09 Bioclogging of Natural Porous Media
H10 Links Between Hydrology and Water Quality in the Florida Everglades
H18 Coupled Watershed and Ecosystem Processes: Methodologies, Models, Measurements and Management
H19 Impacts of Urban Land Use Change: Hydrologic, Biogeochemical, and Policy Issues
H25 Operational Monitoring of the Arctic Hydrological System
OS01 Physical Processes in Salt Marshes and Barrier Islands
P06 Mars Sample Return: Science, Implementation, Issues, and Plans
V03 Minerals, Solutions, and Microbial Life
GC01 Climate and Development from Seasons to Centuries: How Our Understanding of and Responses to Seasonal Climate Variability Can Build Insight Into Human Adaptation to Long-Term Climate Change
GC02 Atlantic Decadal Variability
GC03 Pacific Decadal Variability
GC04 Carbon Management Technologies: Feasibility, Impacts, Risks, and Economics
GC06 Reconstruction and Understanding the Late Maunder Minimum Climate Anomaly
H24 Land-Atmosphere Interaction and the Atmospheric Boundary Layer
G00 General Contributions
Contributions relevant in any area over the full spectrum of Geodesy may be submitted to this series of the sessions. Accepted contributions will be organized into appropriate topical sessions. More than half the papers contributed for AGU meetings will not find a home in the pre-approved sessions suggested by a variety of conveners. Papers submitted to these sessions give the program chairs an opportunity to fashion a backbone for the meeting and determine what the broad range of contributors feel is important in the section right now. Geodesy is concerned with the study and measurement of the external shape of the Earth and its gravity field, including its temporal variations; crustal motion, loading and deformation; Earth rotation; the tidal and rotational motion and deformation of the Earth; the establishment and maintenance of a stable terrestrial reference frame; the dynamics of the Earth including its core and mantle; the construction of and internal dynamics of the Earth; and the flux and exchange of mass and momentum between and within the solid Earth, the hydrosphere, the cryosphere, and the atmosphere. Geodetic measurements are crucial to the study of climate change, including the advance and retreat of ice sheets and glaciers, sea level rise, and charting the motion of the Earth's crust through time. Papers in these disciplines that do not necessarily fit into the sessions are welcome.
Convener: Jeanne Sauber, NASA/Goddard Space Flight Center, USA, E-mail: jeanne@steller.gsfc.nasa.gov
G02 GPS Navigation as a Tool for Earth Science
Precise positioning of moving GPS receivers is an enabling technology for studing the Earth by remote sensing. It is a practical and affordable way to get precise geographic registration for many kinds of data, and speed and acceleration corrections, for example, for air and sea gravimetry. It is used in mapping topography, bathymetry, sea surface, and ice thickness, from ships, airplanes, and satellites, with various kinds of sonar, radar, and lidar. New developments include the combination of GPS and acoustic underwater positioning to monitor sea-floor tectonics, the observing in real time of earthquake ground motion and volcano inflation, and the use of buoys at sea to make tidal measurements, calibrate satellite altimeters, or detect tsunamis; all this happens at a time when the increasing use of robotic vehicles is opening the way to cheaper and faster surveys of larger areas. Authors are encouraged to send abstracts on any of these or similar topics; presentations are sought on both actual applications and on the relevant GPS techniques.
Conveners: Oscar L. Colombo, GEST/NASA GSFC, Code 926, Greenbelt, MD 20771 USA, Tel: 301-614-6093, Fax: 301-614-6099, E-mail: ocolombo@geodesy2.gsfc.nasa.gov, and Dorota Grejner-Brzezinska, Dept. of Civil and Environmental Engineering
and Geodetic Science,
The Ohio State Universi, 2070 Neil Avenue, Columbus, OH 43210-1275 USA, Tel: 614-292-8787, Fax: 614-292-2957, E-mail: dorota@cfm.ohio-state.edu
G03 Airborne and Spaceborne Laser Altimetry Observations: Scientific Applications, Processing Techniques, and Synergy With Other Remote Sensing Observations
Laser altimetry from airborne and spaceborne platforms is rapidly stablishing itself as an invaluable technique for many purposes, including mapping, surface characterization, and 3D deconstruction. Products include detailed topography and land cover data sets, which address fundamental issues ranging from subcanopy hydrography, to biomass estimates, to urban planning. Successful spaceborne applications to date include the Shuttle Laser Altimeter (SLA), the NEAR Laser Rangefinder (NLR), and the Mars Orbiter Laser Altimeter (MOLA). Planned launches include multiyear missions such as the Vegetation Canopy Lidar (VCL) and Ice, Cloud and Land Elevation Satellite (ICESat), which will yield global data sets on planetary topography, ice sheet mass balance, ocean topography, and landcover (vegetation). This session aims to bring together an interdisciplinary group of scientists, engineers, and end users working in the field of laser remote sensing. Topics of interest include geolocation processing, system calibration and performance assessments, data management and visualization, topography mapping, both planetary and terrestrial, on global, local, and regional scales. We solicit papers on all applications of laser altimetry, including the determination of bare Earth topography (in vegetated or built areas), geomorphology and hazards assessment, land use and urban planning, recovery of biophysical properties such as canopy height and biomass, surface change studies, applications to the study of glaciers and ice sheets, planetary mapping, and fusion of laser altimetry data with data from other sensors.
Conveners: Claudia Cristina Carabajal, NVI, Inc. @ NASA/GSFC, NASA/Goddard Space Flight Center Space Geodesy Branch Code 926, Greenbelt, MD 20771 USA, Tel: 301-614-6111, Fax: 301-614-6099, E-mail: claudia@stokes.gsfc.nasa.gov, and Jean-Bernard Minster, Scripps Institution of Oceanography, IGPP (0225), La Jolla, CA 92093 USA, Tel: 858-534-5650, Fax: 858-534-2902, E-mail: jbminster@ucsd.edu
Geodesy also presents jointly with the following sessions:
T02 Global Earthquake System Science (Monitoring Earthquakes from Space)
T05 Active Deformation and Natural Hazards in the Caribbean Region
T01 Monitoring Deformation in Mountain Belts
Geomagnetism and Paleomagnetism
GP00 General Contributions
Contributions relevant in any area over the full spectrum of Geomagnetism and Paleomagnetism may be submitted to this series of the sessions. Accepted contributions will be organized into appropriate topical sessions. More than half the papers contributed for AGU meetings will not find a home in the pre-approved sessions suggested by a variety of conveners. Papers submitted to these sessions give the program chairs an opportunity to fashion a backbone for the meeting and determine what the broad range of contributors feel is important in the section right now. The Geomagnetism and Paleomagnetism section represents a variety of scientific fields, including applied mathematics, physics, and geology, linked by a common interest in the Earth's magnetic field and how its characteristics can be used to understand Earth's structure, dynamics, and history. The GP section welcomes papers focussed on properties of the present geomagnetic field and its behavior in the historical and geological past, studies of magnetic anomalies to understand the structure of the oceanic and continental crust, the study of the physics and chemistry of magnetic minerals, with particular emphasis on how they are formed and become magnetized, and electromagnetic methods used to study variations in composition, temperature, and other properties of Earth's crust and mantle.
Convener: Michael Purucker, NASA Goddard Space Flight Center, USA, E-mail: purucker@geomag.gsfc.nasa.gov
GP01 Analysis of the Øersted, CHAMP, and SAC-C Magnetic Field Constellation
Previous missions to map the Earth's magnetic field from space have been isolated missions which had difficulty distinguishing between temporal and spatial variability of the field. With the launch of Ørsted (1999), CHAMP and Ørsted-2/SAC-C (2000), we now have three satellites in near-Earth orbit measuring the scalar and vector magnetic fields at the nanotesla accuracy level. In order to improve the utilization of these unique data sets, representatives of these projects have agreed to release to the community a sample of data from all three satellites spanning a variety of viewing geometries, local times, and magnetic disturbance levels. Associated with this data sample will be descriptive models and indices. We solicit presentations which describe the utility, analysis, and interpretation of this coordinated data set, and other data sets. We welcome presentations on external current systems, induction and crustal fields, and the main field. We hope to have this data sample available prior to 1 January 2002, so that everyone who wishes to participate in this session will have adequate time to analyze these data, and other data sets. The session will be largely on-line, with a single oral talk at AGU devoted to describing some of the exciting results. We expect that the conveners will organize several question and answer sessions on-line, pose questions for the participants, and summarize the results. The focus will be on facilitating interactions between the large but widely spread community (more than 50 international groups) which is actively working on these data sets. An article advertising this session will appear in an upcoming Eos, and a summary article will appear, also in Eos, describing the results of this interactive session. While the projects and the conveners will select some of the data samples, we would like your input now as to the data samples you would like to see from the projects. Please e-mail your requests to any of the conveners as soon as possible, but no later than 1 January 2002. We look forward to hearing from you and to a successful interactive session.
Conveners: Heather McCreadie, GeoForschungsZentrum/Potsdam, , Potsdam, D-14473 DEU, E-mail: bilby@gfz-potsdam.de, and Michael Purucker, Raytheon ITSS at Geodynamics Branch, , Greenbelt, MD 20771 USA, E-mail: purucker@geomag.gsfc.nasa.gov, and Susanne Vennerstrom, Danish Space Research Institute, , Copenhagen, DNK, E-mail: sv@dsri.dk, and Gauthier Hulot, IPGP, , Paris, FRA, E-mail: gh@ipgp.jussieu.fr
GP02 Improving the Reliability of Paleointensity Determinations: Microwaves and Other Techniques
A session and workshop
Convener: Derek Walton, McMaster University, CAN,
GP03 New Developments in Magnetic Instrumentation, Data Acquistion, and Processing
A session devoted to new advances in the measurement of magnetic fields. Papers are solicited on the following topics: magnetic microscopy, miniature space magnetometers and star cameras, absolute instruments, fluxgate magnetometers, the development of magnetometers to make measurements at the surface of Mars, and new tools in rock magnetism such as microwaves.
Conveners: Benjamin Weiss, California Institute of Technology, 170-25 1200 E. California Bl , Pasadena, CA 91125 USA, Tel: 626-395-6187, Fax: 626-568-0935, E-mail: bweiss@gps.caltech.edu, and Steve Constable, Scripps, , , USA, E-mail: sconstable@ucsd.edu
GP04 Planetary Magnetic Fields
We solicit contributions on magnetic fields of the planets and their moons, with an emphasis on internal field, internal-external field interactions, or purely external fields.
Convener: Jafar Arkani-Hamed, McGill University, CAN,
GP05 New Rock Magnetic Approaches and Their Geological Applications
This session will focus on results of recent rock magnetic analyses involving novel approaches to geomagnetic, tectonic, and paleoclimate studies. Contributions aimed at understanding the potential of nonconventional magnetic recorders (such as basaltic glass and individual rock-forming minerals) and/or new rock magnetic techniques are welcomed. Among potential issues to be discussed are effects of magnetic anisotropy and cooling rate on paleointensity estimates. Theoretical and experimental contributions considering formation and mineralogy of magnetic carriers in rocks and minerals as well as the nature of their primary magnetization are welcomed. Problems of stability of paleointensity and paleomagnetic signatures in geologic time and during Thellier-Thellier experiments are also encouraged.
Conveners: Alexei Smirnov, University of Rochester, , , USA, Tel: +1-716-275-8810, E-mail: alexei@siena.earth.rochester.edu, and Peter Riisager, Univ of California-Santa Cruz, , Santa Cruz, CA USA,
Geomagnetism and Paleomagnetism also presents jointly with the following sessions:
G01 Integrating Space Geodetic Techniques and Results for Global Earth Observing
T02 Global Earthquake System Science (Monitoring Earthquakes from Space)
T04 The Chesapeake Bay Impact Structure: Results From New Core Holes and Geophysical Surveys
T05 Active Deformation and Natural Hazards in the Caribbean Region
T03 A Memorial Session for Ronald W. Girdler: Rifts, Ridges, Reversals, and Regional Studies
GS00 General Contributions
Contributions relevant in any area over the full spectrum of the geochemical sciences may be submitted to this series of the sessions. Accepted contributions will be organized into appropriate topical sessions. More than half the papers contributed for AGU meetings will not find a home in the pre-approved sessions suggested by a variety of conveners. Papers submitted to these sessions give the program chairs an opportunity to fashion a backbone for the meeting and determine what the broad range of contributors feel is important in the section right now.
Convener: Adina Paytan, Stanford University, USA, E-mail: apaytan@pangea.stanford.edu
GS01 Application of Trace Metals to Paleoenvironmental Change: Limitations and Challenges
Trace metal ratios (e.g., Sr, Mg, Cd, Zn) in biogenic calcite are important tracers for paleoenvironmental change. For example, foraminiferal Mg/Ca ratios have become a popular proxy for oceanic paleotemperatures, but each tracer has its own limitations. A firm grasp of the challenges involved in the application of trace metal ratios is critical for meaningful environmental reconstructions. We welcome presentations that will address issues such as, but not limited to, calibration of data sets to modern oceanic environments, seawater geochemistry, biochemistry of trace metal uptake, or postdepositional alteration.
Convener: Katharina Billups, University of Delaware, College of Marine Studies 700 Pilottown Road, Lewes, DE USA, Tel: +1-302-645-4249, Fax: +1-302-645-4007, E-mail: kbillups@udel.edu
Geochemical Society also presents jointly with the following sessions:
V05 Determining Diamond Provenance
V01 Element Partitioning and Diffusion in the Earth's Interior
V03 Minerals, Solutions, and Microbial Life
V04 Hydrothermal Environments: Coupling Experimental, Field, and Analytical Techniques
V06 Volatiles and Light Elements in Magmatic Systems
V07 Multidisciplinary Constraints on Volcanic Volatile Budgets
S03 Hotspots: Observations and Theoretical Models
H00 General Contributions
Contributions relevant to the full spectrum of the hydrological sciences may be submitted to this series of sessions which follows. Accepted contributions will be organized into appropriate topical sessions. Papers not specifically directed toward a particular session will be assigned to a session that is most appropriate, including the creation of general sessions not listed as one of the sessions. Hydrologists study the occurrence, distribution, movement, and properties of water as a solid, liquid, and vapor, as it cycles through surface waters, the atmosphere, and the surface layers of the Earth. Hydrological inquiry involves almost all of the physical sciences, including physics, chemistry, geology, soil sciences, and meteorology, as well as engineering, the social sciences, and life sciences. This section is interested in contributions on a variety of terrestrial-based, water-related issues and concerns such as the relationship of land-based surface water processes to weather and climate, including floods, droughts, and erosion; groundwater flow and the remediation of contaminated groundwater; and the characteristics and causes of water quality conditions.
Convener: Allen Bradley, University of Iowa, USA, E-mail: allen-bradley@uiowa.edu
H01 Designing and Optimizing Long-Term Groundwater Monitoring Programs
Long-term monitoring (LTM) is a key component of environmental management, including monitoring natural attenuation and other remedial activities and verifying the long-term integrity of remediated sites and containment systems. Current practice often involves inadequate and/or redundant monitoring, excessive sampling, and expensive analysis. This session promotes efficient monitoring program design, consistent with satisfying appropriate site-specific objectives. Topics include LTM sampling/measurement methods, selecting monitoring alternatives, and LTM program optimization. Insights based on research at natural attenuation field sites are welcome, as are perspectives on future changes anticipated in monitoring paradigms and on issues involved at CERCLA, RCRA, and federal sites.
Conveners: Charles Davis, Member, ASCE EWRI Task Committee on Long-Term Monitoring Design, PAI Corporation, PO Box 98518, Las Vegas, NV 89193 USA, Tel: +1-702-295-0541, Fax: +1-702-295-1810, E-mail: davisc@nv.doe.gov, and Donna Rizzo, Vice-Chair, ASCE EWRI Task Committee on Long-Term Monitoring Design, Subterranean Research Inc., PO Box 1121, Burlington, VT 05402 USA, Tel: +1-802-658-8878, Fax: +1-802-658-8878, E-mail: drizzo@subterra.com, and Barbara Minsker, Chair, ASCE EWRI Task Committee on Long-Term Monitoring Design, University of Illinois, Department of Civil and Environmental Engineering, 3230D NCEL, MC-250, 205 North Mathews Avenue, Urbana, IL 61801 USA, Tel: +1-217-333-9017, Fax: +1-217-333-6968, E-mail: minsker@uiuc.edu
H02 Modeling Groundwater Flow and Transport Using the Analytical Element Method and Other Analytical Techniques
Analytic methods, in particular the analytical element method (AEM), have matured into powerful techniques for simulating groundwater flow in heterogeneous aquifers. Application of these methods includes (1) the NAGROM-Dutch National Groundwater Model, and (2) stochastic dispersion modeling. This session focuses on recent advances involving analytical modeling of groundwater flow and transport, with emphasis on the AEM. Topics include, but are not limited to (1) development of analytical solutions, such as for modeling multilayer and three-dimensional groundwater flow, (2) hybrid modeling using both the AEM and the finite difference method, (3) computational aspects of AEM modeling, and (4) challenging applications.
Conveners: Igor Jankovic, University at Buffalo, Department of Civil, Structural and Environmental Engineering, 231 Jarvis Hall, Buffalo, NY 14260-4400 USA, Tel: +1-716-645-2114 ext 2328, Fax: +1-716-645-3667, E-mail: ijankovi@eng.buffalo.edu, and Henk Haitjema, Indiana University at Bloomington, School for Public and Environmental Affairs, 1315 East Tenth Street, Bloomington, IN 47405 USA, Tel: +1-812-855-0563, E-mail: haitjema@indiana.edu
H03 Characterization and Monitoring of Groundwater Geochemistry and Bioavailability: Impact of Recent Advances in Analytical Chemistry
Characterizing and monitoring groundwater geochemistry remains an important challenge, creating a need for new tools in groundwater geochemistry. Recent advances in analytical chemistry, such as provided by MC-ICP-MS, GC-C-IRMS, and ICP-OES, provide new opportunities to understand groundwater processes. Examples include identification of recharge waters using element analysis; determining the fate of platinum-group elements; and "fingerprinting" organic pollutants. This session focuses on application of new analytical techniques with emphasis on the potential to gain new insights into the characterization of groundwater systems. Emphasis is placed on applications, statistical methods for handling large data sets, and the interplay of new analytical capabilities with established methods for groundwater characterization.
Conveners: Stephen E. Silliman, University of Notre Dame, Department of Civil Engineering and Geological Sciences, Notre Dame, IN 46556 USA, Tel: +1-219-631-5380, Fax: +1-219-631-9236, E-mail: silliman.1@nd.edu, and Richelle Allen-King, Washington State University, Department of Geology, Pullman, WA 99164-2812 USA, Tel: +1-509-335-1180, Fax: +1-509-335-7816, E-mail: allenkng@wsu.edu
H04 Recent Advances in Groundwater Hydrology (Poster Only)
This session will highlight recent advances in the field of groundwater hydrology. Poster presentations are encouraged on any aspect of groundwater hydrology. Possible topics include advances in field measurement and site characterization, new strategies for modeling flow or transport in porous and fractured media, interpretation of micro- and macro-scale laboratory experiments, and field case studies highlighting advances in theory or practice.
Conveners: Claire Welty, Drexel University, School of Environmental Science, Engineering, and Policy, Philadelphia, PA 19104 USA, Tel: +1-215-895-2281, Fax: +1-215-895-2267, E-mail: weltyc@drexel.edu, and Stephen E. Silliman, University of Notre Dame, Department of Civil Engineering and Geological Sciences, Notre Dame, IN 46556 USA, Tel: +1-219-631-5380, Fax: +1-219-631-9236, E-mail: silliman.1@nd.edu
H05 Quantifying Groundwater Contributions to TMDLs (Poster Only)
This session highlights recent research studies that quantify groundwater contributions, and the impact of the buffering/remediating capacity of groundwater, on nutrients, pesticides, pharmaceuticals, or other contaminants of interest to total maximum daily loads (TMDLs) for surface water bodies. Of particular interest is work that quantifies fluxes of contaminants across hydrologic interfaces, i.e., vadose zone to groundwater and groundwater to surface water. Submissions from both field and modeling studies are encouraged.
Conveners: Wendy Graham, University of Florida, Department of Agricultural and Biological Engineering, POB 110570, Gainesville, FL 32611-0570 USA, Tel: +1-352-392-1864, Fax: +1-352-392-4092, E-mail: WDGraham@mail.ifas.ufl.edu, and Jim Jawitz, University of Florida, Department of Soil and Water Science, 2169 McCarty Hall, POB 110290, Gainesville, FL 32611-0290 USA, Tel: +1-352-392-1951, E-mail: jawitz@ufl.edu
H06 Environmental Vadose Zone Hydrology (Poster Only)
The vadose zone serves many important environmental roles and is an important link as well as a buffer between the land surface-atmosphere and groundwater. Poster presentations are invited on a broad range of topics in environmental vadose zone hydrology including field investigations, laboratory studies, and modeling analyses. Topics may include unsaturated and multiphase flow and transport processes, plant-soil interaction, evaluation and modeling of heterogeneous systems, assessment of prediction uncertainty, biogeochemical and colloidal matter processes, measurement techniques, and monitoring of vadose zone systems.
Conveners: Thomas Harter, University of California, Davis, Department of Land, Air, and Water Resources; 125 Veihmeyer Hall, Davis, CA 95616-8628 USA, Tel: +1-530-752-2709, Fax: +1-530-752-5262, E-mail: thharter@ucdavis.edu, and Michael Young, Desert Research Institute, Division of Hydrologic Sciences, 755 E. Flamingo Road, Las Vegas, NV 89119 USA, Tel: +1-702-895-0489, Fax: +1-702-895-0427, E-mail: michael@dri.edu
H07 Uncertainty Assessments for Environmental Modeling in the Unsaturated Zone
Multipathway models which simulate contaminant transport through the environment to assess health effects (sometimes referred to as multimedia environmental models) incorporate simple to complex conceptual models of flow and transport through the unsaturated zone to the water table; hydrologic and transport parameter distributions; and human exposure scenario assumptions and parameters. In order to build confidence in the calculations from these models, uncertainty assessments and parameter sensitivity analyses of the conceptual models, their input parameter distributions, outcomes, and scenarios need to be performed. This session will focus on the progress being made in performing sensitivity and uncertainty analyses of risk-significant unsaturated zone processes, parameter distributions, and scenarios incorporated in the multimedia environmental models, and the cumulative uncertainty in the estimation of performance measures. The session presentations will discuss the use of these multimedia environmental models to evaluate potential human health exposures using real site data and realistic assumptions. Applications of multimedia models in codes such as 3MRA, RESRAD, DandD, MEPAS, FRAMES, and GoldSim to assess contaminant transport through the unsaturated zone to the water table will be sought. The session will also include other multipathway environmental model applications if contributed. The session will help communicate recent developments and lessons learned from testing uncertainty methods and parameter estimation techniques.
Conveners: Thomas J. Nicholson, U.S. Nuclear Regulatory Commission, 11545 Rockville Pike, MS T-9F31, Rockville, MD 20852-2738 USA, Tel: 301-415-6268, Fax: 301-415-5389, E-mail: tjn@nrc.gov, and Beth Moore, U.S. Department of Energy, Office of Basic and Applied Research, Washington, DC 20585 USA, Tel: +1-202-586-6334, Fax: +1-202-586-1492, E-mail: beth.moore@em.doe.gov, and Justin Babendreier, USEPA National Exposure Research Laboratory/ORD, Ecosystems Research Division, 960 College Station Road, Athens, GA 30605-2720 USA, Tel: +1-706-355-8344, E-mail: Babendreier.Justin@epa.gov
H08 Hydrology and Transport of Contaminants in Riparian Zones
Riparian zones are lands adjacent to water bodies like lakes, reservoirs, rivers, streams, and wetlands. The functions of riparian zones are related to their soil, vegetation, and hydrologic characteristics and geomorphology. Riparian zones usually are divided into three conceptual zones: zone 1 is adjacent to water bodies; Zone 2 is an intermediate zone upslope from Zone 1; and, Zone 3 is the vegetated areas upslope from Zone 2. Understanding the hydrologic characteristics of these riparian zones is essential to assessing their pollutant removal functions. This session presents research on the hydrologic pathways and the transport and fate of contaminants through riparian zones, especially occurring in the vadose zone and the hyporheic zone. The vadose is subjected to unsaturated flow, while the hyporheic zone is a saturated zone below streams and banks where water exchanges occur between the surface and subsurface. Several areas of research are of interest for this session, including theoretical, numerical, and laboratory/field experiments investigating the transport and fate of contaminants (e.g., phosphorus, microbial pathogens, sediments, pesticides, hazardous-waste landfills leachate) from the pore to regional scale, especially the Chesapeake Bay and the New York City watershed.
Conveners: Christophe Darnault, Malcolm Pirnie Inc., Envrionmental Restoration Group/Water Resources, 11832 Rock Landing Drive, Suite 400, Newport News, VA 23606 USA, Tel: +1-757-873-4480, Fax: +1-757-873-8723, E-mail: cdarnault@pirnie.com, and Philippe Baveye, Cornell University, Laboratory of Environmental Geophysics, Bradfield Hall, Ithaca, NY 14853 USA, Tel: +1-607-539-6456, Fax: +1-607-255-8615, E-mail: pcb2@cornell.edu
H09 Bioclogging of Natural Porous Media
In a wide range of contexts, microorganisms have been shown to be particularly effective at clogging natural porous media, i.e., obstructing their pore space and reducing their permeability, sometimes by several orders of magnitude. Bioclogging may be detrimental in some cases (e.g., in water wells or slow sand filters) but beneficial and put to profitable use in other cases (e.g., in subsurface biobarriers). In either context, a detailed understanding of the mechanisms and environmental controls of bioclogging is desirable. This session will review the state of the art in this emerging field. Topics may include (1) laboratory experiments and microscopic techniques to understand the process of bioclogging at the pore scale, (2) intermediate-scale experiments, (3) mathematical modeling of bioclogging at column and field scales, (4) methods to obtain evidence of bioclogging in field situations, and (5) discussions about criteria to assess the effectiveness of in situ biocontainment or biobarrier technologies.
Conveners: Christophe Darnault, Malcolm Pirnie, Inc., Environmental and Water Resources Engineering, 11832 Rock Landing Drive, Suite 400, Newport News, VA 23606 USA, Tel: +1-757-873-4480, Fax: +1-757-873-8723, E-mail: cdarnault@pirnie.com, and Philippe Baveye, Cornell University, Laboratory of Environmental Geophysics, Bradfield Hall, Ithaca, NY 14853 USA, Tel: +1-607-539-6456, Fax: +1-607-255-8615, E-mail: pcb2@cornell.edu
H10 Links Between Hydrology and Water Quality in the Florida Everglades
Over the last 100+ years, the aerial extent of the Everglades has been cut in half, the hydrologic flow has been altered by roads, levees, and canals, and the water quality has been degraded by agricultural runoff and other anthropogenic activities. Water quality, hydrology, and biogeochemistry are intimately linked in this unique ecosystem. For example, surface water flow is an important mechanism for phosphate transport; sulfate and oxygen concentrations play key roles in mercury methylation; high water levels and phosphate concentrations encourage cattail invasion, which in turn affect water quality and hydrologic flow. We must have a good understanding of these links if science-based restoration efforts are going to succeed. Papers are encouraged on any aspect of the hydrology, water quality, and biogeochemistry of the Everglades, including field, laboratory, and modeling studies.
Conveners: James M. Krest, U.S. Geological Survey, 430 National Center, Reston, VA 20192 USA, Tel: +1-703-648-5472, Fax: +1-703-648-5472, E-mail: jmkrest@usgs.gov, and Dan Childers, Florida International University, Department of Biological Sciences and Southeast Environmental Research Center, Miami, FL 33199 USA, Tel: +1-305-348-3101, Fax: +1-305-348-4096, E-mail: childers@fiu.edu
H11 Water Quality of Natural Systems (Poster Only)
The quality of natural waters is determined by complex interactions of hydrological, chemical, and biological processes. Poster presentations are invited on all aspects of water quality, ranging from field and laboratory studies to modeling approaches and theoretical work. Possible topics include behavior of solutes or contaminants, interaction of hydrology and water quality, geochemical reactions and processes, and novel techniques of analysis or investigation. Presentations may focus on surface water or groundwater systems at any spatial or temporal scale.
Conveners: Elizabeth W. Boyer, State University of New York, College of Environmental Science and Forestry,, 1 Forestry Drive, Syracuse, NY 13210 USA, Tel: +1-315-470-4818, E-mail: ewboyer@syr.edu, and Mary A. Voytek, U.S. Geological Survey, 430 National Center, 12201 Sunrise Valley Drive, Reston, VA 20192 USA, Tel: +1-703-648-6894, E-mail: mavoytek@usgs.gov
H12 Science, Politics, and Watershed Management
The expansion of watershed management plans has involved many scientists in the development of environmental policy and planning processes. The watershed planning process involves the integration of scientific knowledge with many different political actors and viewpoints. Effective watershed management requires that this process be understood and implemented in a manner that realizes both scientific competence and democratic procedures. This session will examine both our current understanding of watershed processes and the utilization of this knowledge in watershed management and environmental policy development. In order to encourage discourse between natural scientists, social scientists, and policy makers, this session seeks a broad array of presentations related to watershed hydrology, ecology, management, and policy. Examples of appropriate presentations include discussion of methods that yield better understanding of watershed processes (and thereby contribute to better decisions), discussion of regulation and/or management of development in urbanizing watersheds, and analysis of the underlying societal trends that drive both development and environmental regulations.
Conveners: Robert J. Brulle, Drexel University, School of Environmental Science, Engineering, and Policy, 3141 Chestnut Street, Philadelphia, PA 19104 USA, Tel: +1-215-895-2294, Fax: +1-215-895-2267, E-mail: brullerj@mail.drexel.edu, and Aaron I. Packman, Northwestern University, Department of Civil Engineering, 2145 Sheridan Road, Evanston, IL 60208-3109 USA, Tel: +1-847-491-9902, Fax: +1-847-491-4011, E-mail: a-packman@northwestern.edu, and Michel C. Boufadel, Temple University, Department of Civil & Environmental Engineering, 1947 North 12th Street, Philadelphia, PA 19122 USA, Tel: +1-215-204-7871, Fax: +1-215-204-6936, E-mail: boufadel@astro.temple.edu
H13 Hydrologic and Water Quality Connections Between Mountains and Adjacent Lowlands
Virtually all of the world’s great river basins have important source areas in mountains (e.g., the Andean source of the Amazon, Rocky Mountain source of the Missouri, Alpine source of the Danube, and Himalayan source of the Yangtze). The contribution of water, sediments, and dissolved solutes from mountain sources far exceeds the proportional extent of mountain areas in many of these basins. In addition to direct contributions from mountains and their role in basin-wide mass balances, mountain-derived water and materials may also have multiple indirect impacts on lowland systems. This session invites contributions that explore the connections among meteorological, weathering, and runoff phenomenon in mountain source areas and the resulting hydrology and water quality of adjacent lowlands. It also encourages contributions that consider the impact of changing land use and climate on mountain-lowland linkages.
Conveners: Michael McClain, Florida International University, Department of Environmental Studies, 11200 SW 8th Street, Miami, FL 33199 USA, Tel: +1-305-348-6826, Fax: +1-305-348-6137, E-mail: mcclainm@fiu.edu, and Robert Stallard, U.S. Geological Survey, 3215 Marine Street, Boulder, CO 80303-1066 USA, Tel: +1-303-541-3022, Fax: +1-303-447-2505, E-mail: stallard@usgs.gov
H14 The Role of Models and Data in the TMDL Process
A recently completed National Research Council study of the Clean Water Act's Total Maximum Daily Load (TMDL) program assessed several issues related to the scientific basis of the TMDL program, including the development and use of information to identify sources of pollutant loadings and their respective contributions to water quality impairment. The study recognizes the importance of models in the development of TMDLs and emphasizes the importance of accounting for uncertainty and of using adaptive modeling approaches. We invite papers that address several model-related questions and recommendations made by the NRC Committee, including the following: (1) How can uncertainty and error be explicitly considered in the estimation and application of models used in the TMDL process? (2) What are the advantages and disadvantages of relatively complex, mechanistic models versus conceptually simpler empirical models for use in setting TMDLs? (3) How can models be used to estimate impairment probability distribution for all water bodies in a state? (4) How can monitoring data be utilized to revise and improve TMDL models? Papers that consider the coupling of different types of models at different scales are also encouraged. We encourage presenters to emphasize both the strengths and weaknesses of the modeling approach they use and to discuss the needs for further model development in light of the NRC recommendations.
Conveners: Gerard McMahon, U.S. Geological Survey, 3916 Sunset Ridge Road, Raleigh, NC 27607 USA, Tel: +1-919-571-4068, Fax: +1-919-571-4041, E-mail: gmcmahon@usgs.gov, and Richard B. Alexander, U.S. Geological Survey, 413 National Center, 12201 Sunrise Valley Road, Reston, VA 20192 USA, Tel: +1-703-648-6869, E-mail: ralex@usgs.gov
H15 Predictability in Hydrometeorology
The global water cycle is maintained by diverse physical processes in various geospheres. Models of different types and complexity can be used to predict various aspects of the water cycle. Many of the natural processes involved exhibit chaotic behavior. Small changes in the state of a system, due to either observational or model related uncertainties, lead to drastically different solutions after a finite time period, resulting first in a partial, and eventually in a complete loss of predictability. To be of use, forecasts in this environment need to be expressed probabilistically, instead of in the form of a single value. In this session, studies related to the predictability of hydrometeorological processes are solicited. This includes theoretical studies aimed at assessing the predictability properties of different subcomponents of the water cycle, as well as hydrometeorological applications aimed at quantifying forecast uncertainty on various spatial and temporal scales. In particular we invite contributions on different methodologies developed for capturing case-dependent forecast uncertainty related to the use of imperfect models and limited observations. Papers on the use of ensemble and related approaches in various hydrometeorological forecast applications are especially welcome.
Conveners: Zoltan Toth, SAIC-NCEP/EMC, 5200 Auth Road, Room 207, Camp Springs, MD 20746 USA, Tel: +1-301-763-8000 x7268, Fax: +1-301-763-8545, E-mail: Zoltan.Toth@noaa.gov, and John Schaake, NOAA/NWS, 1325 East-West Highway, Silver Spring, MD 20910 USA, Tel: +1-301-713-1660, Fax: +1-301-713-0963, E-mail: john.schaake@noaa.gov, and Qingyun Duan, NOAA/NWS, Hydrology Lab, 1325 East-West Highway, Silver Spring, MD 20910 USA, Tel: +1-301-713-1018, Fax: +1-301-713-0963, E-mail: qingyun.duan@noaa.gov
H16 Hypothesis, Theories, and Applications of Distributed Modeling and the Initial Results of the Distributed Model Intercomparison Project (DMIP)
The National Weather Service Hydrology Laboratory (NWS/HL) is hosting the distributed Model Intercomparison Project (DMIP) (http://hsp.nws.noaa.gov/oh/hrl/dmip/index.html) to identify, understand, and share science issues in distributed hydrologic modeling through intercomparison of distributed models (among themselves and with lumped models). Of particular interest to the host are those that are particularly important at the space-time scales where operational hydrologic models operate for purposes of flash flood, river flood, and water resources forecasting. The purpose of this session is (1) to provide a progress report, particularly in the area of data preparedness and availability, and initial results from limited model intercomparisons, and (2) to seek general contributions from the community on all aspects of such a study, including data analysis (including data quality), distributed and lumped modeling of soil moisture accounting and routing, comparison of results between distributed and lumped modeling, computational issues, objective assessment of model results, assessment of marginal benefit of additional/finer-resolution data sources and physical processes modeled, parameter estimation, data assimilation, and development of forecast products from distributed model output. Contributions from both participants and nonparticipants of DMIP are equally welcome.
Conveners: Michael Smith, National Weather Service, Hydrologic Science and Modeling Branch, Hydrology Laboratory, 1325 East-West Highway, Silver Spring, MD 20910 USA, Tel: +1-301-713-0640 ext 128, Fax: +1-301-713-0963, E-mail: michael.smith@noaa.gov, and Xu Liang, University of California, Department of Civil and Environmental Engineering, 631 Davis Hall #1710, Berkeley, CA 94720-1710 USA, Tel: +1-510-642-2648, Fax: +1-510-642-7483, E-mail: liang@ce.berkeley.edu
H17 Surface Water Hydrology and Water Resources (Poster Only)
This session will highlight recent advances in the field of surface water hydrology and water resources. Poster presentations are encouraged on a wide range of topics, including operational streamflow forecasting, riparian zone hydrology, water resources management, climate change, land surface modeling and processes, calibration issues in modeling, and statistical hydrology, among others. Topics may also include spatial and temporal scaling issues in surface hydrology.
Conveners: Terri S. Hogue, University of Arizona, Department of Hydrology and Water Resources, College of Engineering and Mines, Bldg. 11, PO Box 210011, Tucson, AZ 210011 USA, Tel: +1-520-626-1093, E-mail: hoguets@hwr.arizona.edu, and Christopher A. Williams, University of Virginia, Department of Environmental Sciences, 291 McCormick Road, Clark Hall,, Charlottesville, VA 22904-4123 USA, Tel: +1-804-924-0555, E-mail: caw4r@virginia.edu
H18 Coupled Watershed and Ecosystem Processes: Methodologies, Models, Measurements and Management
The limited knowledge of (1) the coupling of hydrological mechanisms to ecosystem structure and function and the effects of alteration activities, and (2) sound methods to monitor important ecosystem characteristics and the temporal and spatial changes resulting from system perturbations limit the ability to manage land and water resources using an ecosystem-driven approach. This session focuses on multidisciplinary research that monitors and models ecosystem processes at multiple spatial and temporal scales within a watershed framework. This section seeks papers from field and modeling-based research that examine the impact and interactions of soil, vegetation, and hydrological factors, from the hillslope to the landscape scale, and their response to changing systems. Topics that include the role of streamflow characteristics, soil water dynamics or flow paths on watershed riparian processes, nutrient cycling, carbon uptake, and habitat modification are encouraged. Research that addresses the transition from science to land and water resource management is also welcome.
Conveners: Jennifer Jacobs, University of Florida, Department of Civil and Coastal Engineering, Gainesville, FL 32611-6580 USA, Tel: +1-352-392-9537, Fax: +1-352-392-3394, E-mail: jjaco@ce.ufl.edu, and D. Scott Mackay, University of Wisconsin-Madison, Department of Forest Ecology and Management, 1630 Linden Drive, Madison, WI 53706 USA, Tel: +1-608-262-1669, E-mail: dsmackay@facstaff.wisc.edu
H19 Impacts of Urban Land Use Change: Hydrologic, Biogeochemical, and Policy Issues
As population in the U.S. and worldwide grows, pressures to urbanize the landscape continue to mount. The east and west coasts of the U.S. are highly urbanized with sprawl-type growth becoming a widely recognized phenomenon associated with many urban centers. Development of the landscape leads to a spectrum of negative hydrologic and biogeochemical consequences including heightened flood flows, reduced baseflows, channel incision and erosion, impaired groundwater recharge, changes in redox conditions, alteration of aquatic and terrestrial biological communities, and increased nutrient and pollutant loadings and concentrations. Scientists and policy makers are both focusing greater attention on these linked problems. Scientific pursuits in this area range from tracking and quantification of urban growth, to the creation of best management practices (BMPs) designed to mitigate the impacts of urbanization, to the development of high-resolution, physically based numerical models to estimate and predict nutrient concentrations in streams. Policy-oriented efforts include the establishment of measures to curb urban sprawl such as “smart growth” programs and regulations to monitor and limit nutrients and pollutants in streams. This session will attract a blend of both science and policy perspectives to the problems associated with urbanization. We invite papers that span scientific exploration of urbanization impacts and the policy realm of controlled or directed development. Appropriate scientific presentations would include the effects of urbanization on runoff, recharge, erosion, nutrient cycling processes, water quality, and species diversity in biological communities. Appropriate policy presentations might discuss the effectiveness of low-impact development and government or community efforts to create effective land development control programs. Presentations that integrate science and policy such as the impact of land use programs on runoff processes and water quality are particularly welcomed.
Conveners: Glenn Moglen, University of Maryland, Department of Civil and Environmental Engineering, College Park, MD 20742 USA, Tel: +1-301-405-1964, Fax: +1-301-405-2585, E-mail: moglen@eng.umd.edu, and Scott Goetz, University of Maryland, Department of Geography, 1153 Lefrak Hall, College Park, MD 20742-8225 USA, Tel: +1-301-405-1297, Fax: +1-301-314-9299, E-mail: sgoetz@geog.umd.edu, and Doug Burns, U.S. Geological Survey, Watersheds Research Section, 425 Jordan Road, Troy, NY 12180-8349 USA, Tel: +1-518-285-5662, Fax: +1-518-285-5601, E-mail: daburns@usgs.gov
H20 Remote Sensing of Precipitation (Poster Only)
This session will cover a broad range of topics related to all aspects of remote sensing of precipitation. Contributions are equally sought from both the research and operational communities to facilitate discussion and exchange of experience. The session will consist entirely of poster presentations. Papers are solicited on the estimation, validation, and error/uncertainty assessment of precipitation measured by ground-based, underwater, shipborne, airborne, or spaceborne remote sensors, such as active (radar) and passive (SSM/I, TMI) microwave, visible (VIS), infrared (IR), or sound-based (hydrophone) sensors. Papers focused on the assimilation of remotely sensed precipitation into atmospheric and/or hydrologic models, and new technologies for remote sensing of precipitation, are encouraged as well.
Conveners: Matthias Steiner, Princeton University, Department of Civil and Environmental Engineering, Princeton, NJ 08544 USA, Tel: +1-609-258-4614, E-mail: msteiner@princeton.edu, and Eyal Amitai, UMBC JCET, NASA Goddard Space Flight Center, , Greenbelt, MD 20771 USA, Tel: +1-301-286-9224, E-mail: eyal@radar.gsfc.nasa.gov
H21 Global Precipitation Mission for Hydrology and Hydrometeorology
This session will explore the potential benefits and needs of the Global Precipitation Mission (GPM) for hydrology and hydrometeorology. Contributions are solicited that cover a broad range of topics related to GPM, with particular emphasis on GPM's role for hydrology and hydrometeorology. This may include issues of monitoring key components of the hydrologic cycle at the appropriate scales in space and time, requirements for satellite sensor packages and sampling, data fusion for multiple spaceborne sensors, assimilation of GPM data into atmospheric and hydrologic models, and evaluation of the satellite measurements from ground observations. This session is envisioned as a platform to discuss the potential benefits for hydrology and hydrometeorology resulting from GPM and the requirements and needs to accomplish them.
Conveners: Matthias Steiner, Princeton University, Department of Civil and Environmental Engineering, Princeton, NJ 08544 USA, Tel: +1-609-258-4614, E-mail: msteiner@princeton.edu, and Eric F. Wood, Princeton University, Department of Civil and Environmental Engineering, Princeton, NJ 08544 USA, Tel: +1-609-258-4675, E-mail: efwood@princeton.edu
H22 Advances in Understanding the Global Water Cycle
Growing recognition of the importance of variations in the cycling of water through the Earth system has led to the development of a strengthened Water Cycle program under the auspices of the U.S. Global Change Research Program (USGCRP). Water has important ramifications for the Earth system in all its phases. As a gas it preferentially absorbs radiant energy emitted by the Earth's surface, thereby enhancing the greenhouse effect. As a solid its high albedo reflects incoming solar radiation to space, and its crystalline structure allows it to store water both above and below ground particularly during the winter months. Most critically, as a liquid it is an essential source of fluid and nutrients for humans and animals, it provides essential infrastructure support for society's economic activities, and it serves as a solvent and transport mechanism for many natural and man-made chemicals and pathogens with both positive and negative consequences. Prediction of the variability of the water cycle is a major issue because water excesses in the form of floods constitute a major life-threatening natural hazard while prolonged water deficits during droughts cause economic hardship and social disruption. This session will be a mix of invited and submitted papers dealing with the cycling of water through the Earth system with a focus on pathways, fluxes, and reservoirs. Papers are solicited that deal with observation, analysis, simulation, and prediction of the principal components of the water cycle system and of the system as a whole. Papers are also invited that address factors that introduce changes in the rate of the cycling of water such as land use modification, changing atmospheric composition, and changes to water management practices. In addition to scientific lectures, some USGCRP agency presentations will be included to provide a context and overview for these activities.
Conveners: Rick Lawford, NOAA Office of Global Programs, 1100 Wayne Avenue, Suite 1210, Silver Spring, MD 20910 USA, Tel: +1-301-427-2089 x146, Fax: +1-301-427-2222, E-mail: lawford@ogp.noaa.gov, and Rafael Bras, Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, Ralph M Parsons Lab, Room 1-290, Cambridge, MA 02139-4307 USA, Tel: +1-617-253-2117, Fax: +1-617-253-4546, E-mail: rlbras@mit.edu, and Roni Avissar, Duke University, Department of Civil and Environmental Engineering, Durham, NC 27708-0287 USA, Tel: +1-919-660-5200, E-mail: avissar@duke.edu, and Paul Houser, NASA, Godard Space Flight Center, Code 974, Greenbelt, MD 20771 USA, Tel: +1-301-614-5772, E-mail: paul.houser@gsfc.nasa.gov
H23 Remote Sensing, Hydrology, and Field Experiments
This session hopes to bring together research in hydrological remote sensing with emphasis on field experiments. In the past, numerous field experiments have brought together data measured from different platforms, including tower-, aircraft-, and satellite-based measurements. These experiments include FIFE, HAPEX, MONSOON-90, Mac-Hydro, SGP-97, and SGP-99, to name a few. Contributions are encouraged that examine the results from these varied measurements in field experiments, the use of remote sensing in hydrology, and the integration of remotely sensed measurements with measurements at different scales.
Conveners: Venkat Lakshmi, University of South Carolina, Department of Geological Sciences, Columbia, SC 29208 USA, Tel: +1-803-777-3552, Fax: +1-803-777-6684, E-mail: vlakshmi@geol.sc.edu, and Anthony Cahill, Texas A&M University, Department of Civil Engineering, College Station, TX 77845 USA, Tel: +1-979-862-3858, Fax: +1-979-862-1542, E-mail: tcahill@civilmail.tamu.edu
H24 Land-Atmosphere Interaction and the Atmospheric Boundary Layer
The focus of this session is on advances in field experimentation, modeling, and simulation to improve our understanding of land-atmosphere interaction over natural terrain at local to regional scales (meters to kilometers). Presentations concerning observations in the atmospheric boundary layer (ABL) and at the land surface of mass, heat, and momentum transfer in the soil-plant-atmosphere continuum and the development of models are welcomed. This includes discussion on the use of remote sensing tools (e.g., lidar and radar) as well as the design of new field experimental campaigns with fast response instrumentation, aircraft, and more conventional instruments to probe the ABL. In addition, talks on the application and development of turbulence models, large eddy simulation, field campaign initiatives, and issues on coupling land and atmosphere models including data assimilation are relevant in this session.
Conveners: Marc Parlange, Johns Hopkins University, Department of Geography & Environmental Engineering 313 Ames Hall, Baltimore, MD 21218-2686 USA, Tel: +1-410-516-6042, Fax: +1-410-516-8996, E-mail: mbparlange@jhu.edu, and John Albertson, Duke University, Department of Civil and Environmental Engineering, Durham, NC 27708-0287 USA, Tel: +1- 919-660-5200, E-mail: john.albertson@duke.edu
H25 Operational Monitoring of the Arctic Hydrological System
The geography and dynamics of water across the Arctic region are important elements of the larger Earth system given growing evidence of the vulnerabililty of the Arctic climate and terrestrial biosphere to global change. The Arctic freshwater cycle figures prominently in any analysis of these dynamical systems, with important links among land, atmosphere, and ocean. Our capacity to monitor this important environment is paradoxically deteriorating rapidly relying on traditional sources of land-based data while at the same improving dramatically with the emergence of numerical weather prediction models, satellite-based remote sensing, spatial analysis, and simulation modeling. Several of these new tools have been used to provide a comprehensive picture of change to the entire Arctic. This session seeks to highlight some of these current capabilities and how these might be unified within a common framework. Of particular relevance is a newly proposed component of the NSF Arctic Systems Science Program devoted to Arctic water cycle synthesis studies, Arctic-CHAMP (Pan-Arctic Communitywide Hydrological Analysis and Monitoring Program).
Conveners: Mark Serreze, Cooperative Institute for Research in Environmental Sciences, University of Colorado at Boulder, 216 UCB, Boulder, CO 80309-0216 USA, Tel: +1-303-492-2963, E-mail: serreze@kryos.colorado.edu, and Charles Vorosmarty, University of New Hampshire, Complex Systems Research Center, Durham, NH 03824 USA, Tel: +1-603-862-1792, E-mail: charles.vorosmarty@unh.edu, and Larry Hinzman, University of Alaska Fairbanks, Water & Environmental Research Center, 525 Duckering Bldg, Fairbanks, AK 99775-1760 USA, Tel: +1-907-474-7331, E-mail: ffldh@uaf.edu, and Richard Lammers, University of New Hampshire, Complex Systems Research Center, Durham, NH 03824 USA, Tel: +1-603-862-4699, Fax: +1-603-862-0188, E-mail: Richard.Lammers@unh.edu
H26 A Strategy for the Advancement of Hydrologic Science
The Consortium of Universities for the Advancement of Hydrologic Sciences (CUAHSI) seeks to facilitate hydrologic sciences by (1) providing scientists access to data and information at wide ranges of spatial and temporal scales, as well as access to the most appropriate instruments and technologies for the creation of hydrologic understanding to address a list of pressing national and international problems; (2) nurturing general understanding of hydrologic sciences through programs of education and outreach; and (3) assuring applicability of the advances through a program of technology transfer. This session will include a moderated discussion, with invited speakers to present and stimulate discussion of proposed CUAHSI initiatives, and a poster session. Poster presentations are solicited on various facets of the infrastructure proposals. For additional information on CUAHSI, see www.cuahsi.org.
Conveners: John Wilson, New Mexico Institute of Mining and Technology, Department of Earth & Environmental Science, Socorro, NM 87801 USA, Tel: +1-505-835-5308, Fax: +1-505-835-6436, E-mail: jwilson@nmt.edu, and Ken Potter, University of Wisconsin, Department of Civil & Environmental Engineering, 1261C Engineering Hall, 1415 Engineering Drive, Madison, WI 53706 USA, Tel: +1-608-262-0040, Fax: +1-608-262-5199, E-mail: kwpotter@facstaff.wisc.edu
H27 Long-Term Hydrologic and Water Quality Data: An Essential Resource for Science and Public Policy (Poster Only)
Long-term monitoring of hydrology and water quality is critical, both for progress in hydrologic sciences and for sound water resource policy-making. Datasets spanning many decades are essential for establishing reliable estimates of flood and drought risk, for separating human and natural impacts on water quality and streamflow, and for detecting environmental change. Long-term monitoring data often become more valuable over time (e.g., as rare extreme events -- and recovery from them -- become part of the record). They also often prove to be valuable for uses far beyond their original purpose. Yet researchers face persistent challenges in attempting to sustain observation programs over many decades. Unfortunately, no amount of money can buy "lost time" to make up for gaps in time series, or replace essential measurements that were not made. Posters are solicited that illustrate the importance of long-term observations in hydrology, for scientific advancement and as support for policy and resource management decisions. Practical examples and case studies are especially sought. Posters should be suitable for a broad audience, including educated non-scientists. The session will include guided "open house" tours for successive small groups of invited attendees, including key legislative and executive staff.
Conveners: Holly C. Hartmann, University of Arizona, Department of Hydrology and Water Resources, PO Box 210011, Tucson, AZ 85721 USA, Tel: +1-520-626-8523, Fax: +1-520-626-2488, E-mail: hollyh@hwr.arizona.edu, and James W. Kirchner, University of California, Department of Earth and Planetary Science, 479 McCone Hall, Berkeley, CA 94720-4767 USA, Tel: +1-510-643-8559, Fax: +1-510-643-9980, E-mail: kirchner@seismo.berkeley.edu, and Robin L. Hartmann, Natural Resources/Governmental Affairs Consultant, 835 SE McClelland Avenue, Roseburg, OR 97470 USA, Tel: 541-672-3694, Fax: 541-464-0052, E-mail: hartmann@teleport.com
H28 Geomorphology
Diverse approaches are required to understand the processes of erosion, transport, and deposition of sediment and solutes, and to predict their influence on short- and long-term landscape changes. In this session we solicit poster presentations on geomorphic processes, particularly the influence of wind, water, and ice on the land surface; the behavior of soil, rock, and ice under applied stresses; and the rates of landscape development and the ages of surfaces. We welcome contributions from field or lab experiments, modeling, field monitoring, application of cosmogenic radionuclides, and development of new techniques.
Conveners: Beverley C. Wemple, University of Vermont, Geography Department, Burlington, VT 05405 USA, Tel: +1-802-656-2074, Fax: +1-802-656-3042, E-mail: Beverley.Wemple@uvm.edu, and Greg Pasternack, University of California, 211 Veihmeyer Hall, LAWR One Shields Avenue, Davis, CA 95616-8628 USA, Tel: +1-530-754-9243, Fax: +1-530-752-5262, E-mail: gpast@ucdavis.edu
Hydrology also presents jointly with the following sessions:
B06 Contributions of Biogeosciences to the Millennium Ecosystem Assessment
B02 Biogeochemistry and Conservation Biology
A07 From Rain Gage to RANET to Radio: How Information Technology Is Transforming Forecast Communication
A10 Fires, Scars, and Smoke: Observations, Impact, and Policies
A17 Ice Cores: Glaciology and Environmental Change
B03 Closing the N2O Budget Through Isotopic Discrimination
B04 Species Populations and Relationships to Climate and Water Quality
B08 Ecohydrology of Arid and Semiarid Ecosystems
B11 The Effects of Urban/Suburban Development on Nutrient Cycling Processes and Water Quality
G01 Integrating Space Geodetic Techniques and Results for Global Earth Observing
G02 GPS Navigation as a Tool for Earth Science
G03 Airborne and Spaceborne Laser Altimetry Observations: Scientific Applications, Processing Techniques, and Synergy With Other Remote Sensing Observations
P01 Mars Polar and Paleopolar Deposits: Implications for Climate Change
T04 The Chesapeake Bay Impact Structure: Results From New Core Holes and Geophysical Surveys
GC01 Climate and Development from Seasons to Centuries: How Our Understanding of and Responses to Seasonal Climate Variability Can Build Insight Into Human Adaptation to Long-Term Climate Change
GC02 Atlantic Decadal Variability
GC03 Pacific Decadal Variability
B05 Use of Remote Sensing as Policy-Relevant Information
GC04 Carbon Management Technologies: Feasibility, Impacts, Risks, and Economics
GC05 Comparing Arctic Models
B07 Land-Atmosphere Interactions
Mineralogical Society of America
M00 General Contributions
Contributions relevant in any area over the full spectrum of the mineralogical sciences may be submitted to this series of the sessions. Accepted contributions will be organized into appropriate topical sessions. More than half the papers contributed for AGU meetings will not find a home in the pre-approved sessions suggested by a variety of conveners. Papers submitted to these sessions give the program chairs an opportunity to fashion a backbone for the meeting and determine what the broad range of contributors feel is important in the section right now.
Convener: Yingwei Fei, Geophysical Laboratory, USA, E-mail: fei@gl.ciw.edu
M01 Mineral Structures and Stabilities
This session will focus on all aspects of mineral crystal structures, as well as on the stability of minerals under varying geological conditions. Emphasis will be on experimental and theoretical studies of the connectivity and topology of mineral structures (and synthetic analogs), including how they respond to changing conditions of pressure and temperature.
Conveners: Peter C Burns, University of Notre Dame, Department of Civil Engineering and Geological Sciences 156 Fitzpatrick Hall, Notre Dame, IN 46556 USA, Tel: 219-631-7380, Fax: 219-631-9236, E-mail: pburns@nd.edu, and Jeffrey E. Post, Smithsonian Institution, Mineral Sciences NHB 119, Washington, DC 20560 USA, Tel: (202) 357-4009, Fax: (202) 357-2476, E-mail: post.jeffrey@nmnh.si.edu
M02 Transformations in Earth Materials: Electronic, Magnetic, and Structural Transitions
The study of the Earth as a whole cannot be considered complete without understanding and characterizing Earth materials at a fundamental level. With the advancement of the diamond anvil cell techniques the possibilities for the fundamental materials research are rapidly expanding. The aim of this session is to present the manifold of techniques and new results in studies of electronic, magnetic, and structural transformations in Earth materials. The emphasis will be on electronic and magnetic properties and their coupling to elastic, structural properties of materials. Results from other techniques are also welcome, including experimental and theoretical studies of electronic and magnetic properties at varying P, T conditions.
Conveners: Viktor Struzhkin, Geophysical Laboratory, 5251 Broad Branch Rd., NW, Washington, DC 20015 USA, Tel: 202-478-8952, Fax: 202-478-8901, E-mail: struzhkin@gl.ciw.edu, and Nancy L Ross, Virginia Tech, Dept. of Geological Sciences 4044 Derring Hall, Blacksburg, VA 24061 USA, Tel: (540) 231-6356, Fax: (540) 231-3386, E-mail: nross@vt.edu
</