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Validation of SCIAMACHY and TOMS UV Radiances Using Ground and Space ObservationsVerification of a stratospheric ozone recovery remains a high priority for environmental research and policy definition. Models predict an ozone recovery at a much lower rate than the measured depletion rate observed to date. Therefore improved precision of the satellite and ground ozone observing systems are required over the long term to verify its recovery. We show that validation of satellite radiances from space and from the ground can be a very effective means for correcting long term drifts of backscatter type satellite measurements and can be used to cross calibrate all B W instruments in orbit (TOMS, SBW/2, GOME, SCIAMACHY, OM, GOME-2, OMPS). This method bypasses the retrieval algorithms used for both satellite and ground based measurements that are normally used to validate and correct the satellite data. Radiance comparisons employ forward models and are inherently more accurate than inverse (retrieval) algorithms. This approach however requires well calibrated instruments and an accurate radiative transfer model that accounts for aerosols. TOMS and SCIAMACHY calibrations are checked to demonstrate this method and to demonstrate applicability for long term trends.
Document ID
20040095305
Document Type
Conference Paper
Authors
Hilsenrath, E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bhartia, P. K. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bojkov, B. R. (Science Systems and Applications, Inc. Lanham, MD, United States)
Kowalewski, M. (Science Systems and Applications, Inc. Lanham, MD, United States)
Labow, G. (Science Systems and Applications, Inc. Lanham, MD, United States)
Ahmad, Z. (Science and Data Systems, Inc. Silver Spring, MD, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Subject Category
Earth Resources and Remote Sensing
Meeting Information
International Quadrennial Ozone Symposium (QOS 2004)(Kos)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.