NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Airborne Sun Photometer Measurements of Aerosol Optical Depth during SOLVE II: Comparison with SAGE III and POAM III MeasurementsThe 14-channel NASA Ames Airborne Tracking Sunphotometer (AATS-14) was operated aboard the NASA DC-8 during the Second SAGE III Ozone Loss and Validation Experiment (SOLVE II) and obtained successful measurements during the sunlit segments of eight science flights. These included six flights out of Kiruna, Sweden, one flight out of NASA Dryden Flight Research Center (DFRC), and the Kiruna-DFRC return transit flight. Values of spectral aerosol optical depth (AOD), columnar ozone and columnar water vapor have been derived from the AATS-14 measurements. In this paper, we focus 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 fiom 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).
Document ID
20030111818
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
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. Sonoma , CA, United States)
Eilers, J.
(NASA Ames Research Center Moffett Field, CA, United States)
Kolyer, R.
(NASA Ames Research Center Moffett Field, CA, United States)
Redemann, J.
(Bay Area Environmental Research Inst. Sonoma , CA, United States)
Yee, J.-H.
(Johns Hopkins Univ. Laurel, MD, United States)
Trepte, C.
(NASA Langley Research Center Hampton, VA, United States)
Thomason, L.
(NASA Langley Research Center Hampton, VA, United States)
Zawodny, J.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Subject Category
Spacecraft Instrumentation And Astrionics
Meeting Information
Meeting: SOLVE II/Vintersol Joint Science Team Meeting
Location: Kissimmee, FL
Country: United States
Start Date: October 21, 2003
End Date: October 24, 2003
Funding Number(s)
WBS: WBS 21-621-60-02-10
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available