Chapman Conference on
Ecosystem Interactions with Land Use Change
Courtyard by Marriott Hotel in Santa Fe, New Mexico

14-18 June 2003

Program Committee
Conference Objective
Program [PDF]
Field Trip
Format and Schedule
Abstract Submission Information and Deadline
Travel Support
Meeting Location and Facility


Ruth DeFries, Associate Professor, Department of Geography and Earth System Science Interdisciplinary Center. University of Maryland, College Park, MD 20742, Tel: +1-301 405 4884; Fax +1-301 314 9299; E-mail:
Greg Asner, Faculty Scientist, Department of Global Ecology, Carnegie Institution of Washington, Stanford University, 260 Panama Street, Stanford CA 94305, Tel: 650 325-1521x245, Fax: 650 325-6879, E-mail:

Program Committee
Questions related to the scientific program should be addressed to the conveners of the conference.

Conference Objective
Human conversion and modification of ecosystems to produce food and fiber, extract natural resources, and expand urban areas is one of the key modes of global change. Land use change, while essential for satisfying human needs, involves trade-offs with other ecosystem services and functions such as watershed protection, biogeochemical cycling, soil degradation, and habitats for other species. The conference will bring together researchers addressing various aspects of ecosystem responses to land use change and the feedbacks to sustainable land use. Sessions will address the responses and feedbacks over a range of ecosystems at multiple scales from local to regional to global. The conference will also provide opportunities for researchers working on different aspects of land use/land cover to share information on methodological approaches, observational strategies, and feedbacks among ecosystem processes.

Preliminary Topics and Issues
To focus the conference on a broad but tractable set of issues related to ecosystem interactions with land use change, the following topics will be addressed.

Field Trip
A field trip to the Chaco Canyon National Monument in northwestern New Mexico on Monday will be an integral part of the conference. Chaco Culture National Historical Park preserves one of America's most significant and fascinating cultural and historic areas. It was a hub of ceremony, trade, and administration for the prehistoric Four Corners area - unlike anything before or since. The sites were also part of the sacred homeland of Pueblo Indian peoples of New Mexico, the Hopi Indians of Arizona, and the Navajo Indians of the Southwest, all of whom continue to respect and honor them.

The field trip will begin with a bus ride from the hotel to Chaco Canyon. At the park, you will enjoy a guided tour with the park ranger, lunch in the picnic area, and free time to hike and explore around the canyon. From there, the bus will then take you to Jemez Springs, where you can visit the town, enjoy the hot springs, and have an authentic Mexican dinner. From there, we will head back to the hotel.

Please plan to join us for this exciting field trip, which is included in your meeting registration fee, and will enhance your meeting experience!

Format and Schedule
The conference will include four full days of presentations, discussions, and posters. Poster sessions will be held each day on the topics of the oral sessions. Monday will be devoted to a field trip to the Chaco Canyon National Monument. Each half-day will be devoted to a primary topic as listed above.

Abstract Submission Information:    Abstract Deadline : 04 March 2003

ABSTRACT SUBMISSIONS BY E-MAIL: Compose your abstract on your E-mail software exactly as you would a normal message, using a MAXIMUM of 75 standard ASCII characters per line. Re-set your margins, if necessary, so that the text wraps from line to line, to avoid the insertion of hard returns. Follow the instructions below. A sample E-MAIL abstract is provided at the end.

I) TITLE - The title of the abstract should be composed in a standard title format, capitalizing the first letter of all words of four or more letters. Insert one blank line after title. Please BOLD, but do not underline.

II) AUTHOR BLOCK- The author block should contain the name of a presenting author that should be enclosed in brackets and asterisks, like so: [*I M First*]. If there is no presenting author, then input [*---*] at the beginning of the author block. Input your author block by typing the author's name, then putting their address, phone, fax, and e-mail information in parentheses, ( ). Do not put each author on a separate line, but rather, separate each author's information with a semi-colon(;). Leave one blank line after the author block.

III) ABSTRACT TEXT - Special symbols or graphics should not be used in composing the abstract. Leave one blank line between paragraphs and after the body.

IV) SUBMITTAL INFORMATION - This section is to record information about which meeting the abstract is being submitted to and to obtain contact information. Please provide the following:
1. Title of meeting (Chapman Conference on Ecosystem Interactions with Land Use Change) (VERY IMPORTANT!)
3a. Corresponding address: Give name, affiliation, and mailing address of the author to whom all correspondence regarding this abstract should be sent.
3b. Corresponding author's telephone number.
3c. Corresponding author's fax number
3d. Corresponding author's E-mail address.
4. Indicate whether the first author is a student.
5. Please indicate which session you wish to submit your abstract.

V) SUBMIT YOUR ABSTRACT - Send the abstract to the following E-mail address:

VI) CONFIRMATIONS - Confirmations of received abstracts will be sent via electronic mail within one business day of submission. If you have not received confirmation, please call the AGU at +1-202-777-7332 or fax: +1-202-328-0566, or e-mail:

Remote Sensing of Alpine Snow Properties: A Review of Techniques and Accomplishments Using the Visible Wavelengths Through the Microwave

[*J S Smith*] (Department of Geology, University of California, Santa Barbara, CA 93106-3060; ph. 805-893-2308; fax 805-893-2578; e-mail:; A C Cohen (Hydrology Department, Watertown University, Watertown, MA 02172; ph. 413-789-1234; fax 413-789-1256; e-mail:

Topography causes wide variations in the properties of alpine snow within small areas, and a knowledge of the spatial variation of many properties is essential for the application of distributed hydrologic models and for establishing the surface boundary condition for regional climate models. However, the topography affects the electromagnetic remote sensing signal by shadowing some terrain and by modifying the angles of incidence, emission, and reflection of the signal, and our knowledge of the elevation model is usually not precise enough to allow a priori calculation of the geometric relationships between the surface, sensor, and the Sun. Hence remote sensing algorithms must be robust to such uncertainties, except in areas where topographic knowledge is especially good. The most elementary snow property is the presence or absence of a snow cover, and snow mapping -- discrimination of snow from other types of surfaces and from clouds -- is best accomplished with a combination of visible and near-infrared wavelengths.

1. Chapman Conference on Ecosystem Interactions with Land Use Change
2. Invited
3. (a) J S Smith Department of Geology University of California Santa Barbara, CA 93106-3060 (b) 805-893-2309 (c) 805-893-2578 (d)
4. No

If you have questions, please contact Martez Taylor at: E-mail:; Phone: +1-202-777-7332

Travel Support: Application Deadline is 04 March 2003
Applications are being made to several U.S. agencies to support travel of conference participants. Graduate students and young scientists will receive priority for funding. To apply for travel funds, please print and complete the Chapman Conference Travel Grant Application, and return it to the AGU Meetings Department by 04 March 2003.


The registration fee for this conference is $330 for regular participants and $230 for student participants. Submit the online form to register for this meeting by 19 May 2003 to register. See the registration form for cancellation and refund information.

Meeting Location and Hotel Accommodations
The conference will be in Santa Fe, New Mexico at the Courtyard by Marriott. Hotel sleeping room rates for the conference will be $89 single and $99 double occupancy. The rates are exclusive of local taxes and fees, which are currently 11.44%.

To reserve a sleeping room, call the hotel directly at toll free 1-800-777-3347 or 505-473-2800. Reservations cannot be made on-line, but you can e-mail Luke Gonzales, the Front Desk Manager at to make your reservations. Be sure to include your name, contact information, arrival and departure days and dates, number of guests, and any special room requests.

Please identify yourself as with the American Geophysical Union when making reservations. The cut-off date is Wednesday, 21 May 2003; after this date the special AGU rate may not be available.

Return to AGU Meetings
Back to AGU Home Page