Applications of ultraviolet absolute radiometry in satellite and surface-based remote sensing of atmospheric ozone

Donald F. Heath; Ziauddin Ahmad

doi:10.1117/12.452908

17 January 2002 Applications of ultraviolet absolute radiometry in satellite and surface-based remote sensing of atmospheric ozone

Donald F. Heath, Ziauddin Ahmad

Author Affiliations +

Proceedings Volume 4482, Ultraviolet Ground- and Space-based Measurements, Models, and Effects; (2002) https://doi.org/10.1117/12.452908
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

Side by side comparisons of Langley type Dobson AD double wavelength pair direct sun observations between SBUV/2, SSBUV flight models and the NOAA world primary standard Dobson spectrophotometer 83 and 61 show that the SBUV/2 type instruments yield column ozone amounts that are 2% higher than the NOAA Dobson spectrometers. Similar results have been obtained with a radiometrically stable multi-filter spectroradiometer (MFS) under less than ideal conditions. A new approach based on a modeled table look-up method for using zenith sky radiances to derive total column ozone from zenith clear sky conditions has been tested using SBUV/2, SSBUV flight models and the MFS equipped with narrow band interference filters at the Dobson AD wavelength pairs. These clear zenith sky observations yield total column ozone that is in good agreement with ozone from the NOAA Dobson spectrophotometer direct sun observations. New model calculations on the relationship between satellite nadir radiances and surface based zenith clear sky radiances suggest that the combination of a very radiometrically stable MFS combined with a compact high performance double monochromator could be used to derive a common radiometric scale among satellite borne ozone monitoring instruments using the solar backscatter ultraviolet technique, and to be able to determine the drift in the radiometric calibration of ozone remote sensing instruments in space.

Citation Download Citation

Donald F. Heath and Ziauddin Ahmad "Applications of ultraviolet absolute radiometry in satellite and surface-based remote sensing of atmospheric ozone", Proc. SPIE 4482, Ultraviolet Ground- and Space-based Measurements, Models, and Effects, (17 January 2002); https://doi.org/10.1117/12.452908

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