HR: 17:45h
AN: A42G-07    [PDF]
TI: Aerosol Optical Depth Measurements by Airborne Sun Photometer in SOLVE II: Comparison to SAGE III and POAM III Measurements
AU: * Russell, P
EM: Philip.B.Russell@nasa.gov
AF: NASA Ames Research Center, MS 245-5, Moffett Field, CA 94035-1000 United States
AU: Livingston, J
EM: jlivingston@mail.arc.nasa.gov
AF: SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025 United States
AU: Schmid, B
EM: bschmid@mail.arc.nasa.gov
AF: Bay Area Environmental Research Institute, 560 Third St. West, Sonoma, CA 95476 United States
AU: Eilers, J
EM: jeilers@mail.arc.nasa.gov
AF: NASA Ames Research Center, MS 245-5, Moffett Field, CA 94035-1000 United States
AU: Kolyer, R
EM: rkolyer@MAIL.ARC.NASA.GOV
AF: NASA Ames Research Center, MS 245-5, Moffett Field, CA 94035-1000 United States
AU: Redemann, J
EM: jredemann@mail.arc.nasa.gov
AF: Bay Area Environmental Research Institute, 560 Third St. West, Sonoma, CA 95476 United States
AU: Yee, J
EM: Sam.Yee@jhuapl.edu
AF: Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 21218 United States
AU: Trepte, C
EM: c.r.trepte@larc.nasa.gov
AF: NASA Langley Research Center, MS 475, Hampton, VA 23681-2199 United States
AU: Thomason, L
EM: l.w.thomason@larc.nasa.gov
AF: NASA Langley Research Center, MS 475, Hampton, VA 23681-2199 United States
AU: Zawodny, J
EM: j.m.zawodny@larc.nasa.gov
AF: NASA Langley Research Center, MS 475, Hampton, VA 23681-2199 United States
AU: Chu, W
EM: w.p.chu@larc.nasa.gov
AF: NASA Langley Research Center, MS 475, Hampton, VA 23681-2199 United States
AU: Pitts, M
EM: m.c.pitts@larc.nasa.gov
AF: NASA Langley Research Center, MS 475, Hampton, VA 23681-2199 United States
AU: Lumpe, J
EM: lumpe@cpi.com
AF: Computational Physics, 8001 Braddock Road, Springfield, VA 22151 United States
AU: Randall, C
EM: cora.randall@lasp.colorado.edu
AF: Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80309 United States
AU: Bevilacqua, R
EM: bevilacqua@nrl.navy.mil
AF: Naval Research Laboratory, 4555 Overlook Avenue, S.W., Washington, DC 20375 United States
AB: The 14-channel NASA Ames Airborne Tracking Sunphotometer (AATS-14) made measurements during the sunlit segments of eight science flights on the NASA DC-8 during the Second SAGE III Ozone Loss and Validation Experiment (SOLVE II). These included six flights out of Kiruna, Sweden, one out of NASA Dryden Flight Research Center (DFRC), and the Kiruna-DFRC return transit flight. Aerosol optical depth (AOD) spectra, columnar ozone and columnar water vapor have been derived from the AATS-14 measurements. This paper focuses on AATS-14 AOD data. In particular, we compare AATS-14 AOD spectra with temporally and spatially near-coincident measurements by the Stratospheric Aerosol and Gas Experiment III (SAGE III) and the Polar Ozone and Aerosol Measurement III (POAM III) satellite sensors. We examine the effect on retrieved AOD of uncertainties in relative optical airmass (the ratio of AOD along the instrument-to-sun slant path to that along the vertical path) at large solar zenith angles. Airmass uncertainties result from uncertainties in requisite assumed vertical profiles of aerosol extinction due to inhomogeneity along the viewing path or simply to lack of available data. We also compare AATS-14 slant path solar transmission measurements with coincident measurements acquired from the DC-8 by the NASA Langley Research Center Gas and Aerosol Measurement Sensor (GAMS).
UR: http://geo.arc.nasa.gov/sgg/AATS-website/
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0340 Middle atmosphere--composition and chemistry
DE: 0360 Transmission and scattering of radiation
DE: 0394 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting