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Analysis of measurements of Saharan dust by airborne and ground-based remote sensing methods during the Puerto Rico Dust Experiment (PRIDE)
Space and Naval Warfare Systems Center-San Diego, San Diego, California, USA
Naval Research Laboratory, Monterey, California, USA
Space and Naval Warfare Systems Center-San Diego, San Diego, California, USA
Naval Research Laboratory, Monterey, California, USA
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
Naval Postgraduate School, Monterey, California, USA
Science Systems and Applications, Inc., Greenbelt, Maryland, USA
Department of Atmospheric Sciences, University of Alabama, Huntsville, Alabama, USA
Laboratory for Atmospheric and Space Physics, Program in Atmospheric and Oceanic Sciences, University of Colorado, Boulder, Colorado, USA
Naval Postgraduate School, Monterey, California, USA
SRI International, Menlo Park, California, USA
Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, USA
Material Science and Chemical Engineering, University of California, Davis, California, USA
NASA Ames Research Center, Mountain View, California, USA
Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, USA
Naval Research Laboratory, Monterey, California, USA
NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
NASA Ames Research Center, Mountain View, California, USA
Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, USA
University of Maryland Baltimore County, Baltimore, Maryland, USA
Laboratoire d'Optique Atmospherique, CNRS Universite des Sciences et Technologies de Lille, Villeneuve d'Ascq, France
For 26 days in mid-June and July 2000, a research group comprised of U.S. Navy, NASA, and university scientists conducted
the Puerto Rico Dust Experiment (PRIDE). In this paper we give a brief overview of mean meteorological conditions during the
study. We focus on our findings on African dust transported into the Caribbean utilizing a Navajo aircraft and AERONET Sun
photometer data. During the study midvisible aerosol optical thickness (AOT) in Puerto Rico averaged 0.25, with a maximum
>0.5 and with clean marine periods of ∼0.08. Dust AOTs near the coast of Africa (Cape Verde Islands and Dakar) averaged ∼0.4,
30% less than previous years. By analyzing dust vertical profiles in addition to supplemental meteorology and MPLNET lidar
data we found that dust transport cannot be easily categorized into any particular conceptual model. Toward the end of the
study period, the vertical distribution of dust was similar to the commonly assumed Saharan Air Layer (SAL) transport. During
the early periods of the study, dust had the highest concentrations in the marine and convective boundary layers with only
a weak dust layer in the SAL being present, a state usually associated with wintertime transport patterns. We corroborate
the findings of
Received 29 April 2002; accepted 16 December 2002; published 7 August 2003.
Citation: (2003), Analysis of measurements of Saharan dust by airborne and ground-based remote sensing methods during the Puerto Rico Dust Experiment (PRIDE), J. Geophys. Res., 108(D19), 8586, doi:10.1029/2002JD002493.
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