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Comparison of Aerosol Optical Properties and Water Vapor Among Ground and Airborne Lidars and Sun Photometers During TARFOXWe compare aerosol optical thickness (AOT) and precipitable water vapor (PWV) measurements derived from ground and airborne lidars and Sun photometers during TARFOX (Tropospheric Aerosol Radiative Forcing Observational Experiment). Such comparisons are important to verify the consistency between various remote sensing measurements before employing them in any assessment of the impact of aerosols on the global radiation balance. Total scattering ratio and extinction profiles measured by the ground-based NASA/GSFC Scanning Raman Lidar (SRL) system, which operated from Wallops Island, Virginia (37.86 deg N, 75.51 deg W), are compared with those measured by the Lidar Atmospheric Sensing Experiment (LASE) airborne lidar system aboard the NASA ER-2 aircraft. Bias and rms differences indicate that these measurements generally agreed within about 10%. Aerosol extinction profiles and estimates of AOT are derived from both lidar measurements using a value for the aerosol extinction/backscattering ratio S(sub a)=60 sr for the aerosol extinction/backscattering ratio, which was determined from the Raman lidar measurements.
Document ID
20000052518
Document Type
Reprint (Version printed in journal)
Authors
Ferrare, R. (NASA Langley Research Center Hampton, VA United States)
Ismail, S. (NASA Langley Research Center Hampton, VA United States)
Browell, E. (NASA Langley Research Center Hampton, VA United States)
Brackett, V. (Science Applications International Corp. Hampton, VA United States)
Clayton, M. (Science Applications International Corp. Hampton, VA United States)
Kooi, S. (Science Applications International Corp. Hampton, VA United States)
Melfi, S. H. (Maryland Univ. Baltimore County Catonsville, MD United States)
Whiteman, D. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Schwemmer, G. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Evans, K. (Maryland Univ. Baltimore County Catonsville, MD United States)
Russell, P. (NASA Ames Research Center Moffett Field, CA United States)
Livingston, J. (SRI International Corp. Menlo Park, CA United States)
Schmid, B. (Bay Area Environmental Research Inst. San Francisco, CA United States)
Holben, B. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Remer, L. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Smirnov, A. (Science Systems and Applications, Inc. Greenbelt, MD United States)
Hobbs, P. V. (Washington Univ. Seattle, WA United States)
Date Acquired
August 19, 2013
Publication Date
February 28, 2000
Publication Information
Publication: Analysis of Atmospheric Aerosol Data Sets and Application of Radiative Transfer Models to Compute Aerosol Effects
Subject Category
Meteorology and Climatology
Distribution Limits
Public
Copyright
Other