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On the Long-Term Calibration of the TOMS Total Ozone RecordComparison of Total Ozone Mapping Spectrometer (TOMS) data to the network of ground-based Dobson/Brewer measurements reveals difference in the time dependence of the calibration of the two systems. We have been searching for a method to determine the time dependence of the TOMS calibrations that is independent of the Dobson/Brewer network. In a separate paper by DeLand et al., calibrations of the Solar Backscatter UV Spectrometer (SBUV) instruments have been rederived using the D-pair (306/313 nm wavelengths) data at the equator. These calibrations have been applied to the data from the Nimbus 7 SBUV and the NOAA 9 and 11 SBUV/2 data to derive a new version 7 data set for each instrument. We have used these data to do a detailed comparison to the Nimbus 7 and Earth Probe TOMS data. Assuming that the D-pair establishes the correct calibration, these comparisons reveal some small calibration drifts (approximately 1%) in the TOMS data. They also reveal an offset in the D-pair calibration with respect to the Dobson network of approximately 8 Dobson units with the Dobson being lower than the D-pair. The D-pair calibration offsets have been used to create a merged ozone data set from TOMS with a calibration that has been determined independent of the Dobson/Brewer network. Trend analyses of these data will be presented and compared to trend analyses using the ground-based data.
Document ID
Document Type
Conference Paper
Stolarski, Richard S. (NASA Goddard Space Flight Center Greenbelt, MD United States)
McPeters, Richard (NASA Goddard Space Flight Center Greenbelt, MD United States)
Labow, Gordon J. (Raytheon Co. Lanham, MD United States)
Hollandsworth, Stacey (Myers (Steven) and Associates Co. Largo, MD United States)
Flynn, Larry (National Oceanic and Atmospheric Administration Camp Springs, MD United States)
Einaudi, Franco
Date Acquired
August 19, 2013
Publication Date
January 1, 2000
Subject Category
Environment Pollution
Meeting Information
Quadrennial Ozone Symposium(Hokkaido,)
Distribution Limits
Work of the US Gov. Public Use Permitted.