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| Titel |
Calibration of the SBUV version 8.6 ozone data product |
| VerfasserIn |
M. T. DeLand, S. L. Taylor, L. K. Huang, B. L. Fisher |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 5, no. 11 ; Nr. 5, no. 11 (2012-11-29), S.2951-2967 |
| Datensatznummer |
250003185
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| Publikation (Nr.) |
 copernicus.org/amt-5-2951-2012.pdf |
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| Zusammenfassung |
| This paper describes the calibration process for the Solar Backscatter
Ultraviolet (SBUV) Version 8.6 (V8.6) ozone data product. Eight SBUV
instruments have flown on NASA and NOAA satellites since 1970, and a
continuous data record is available since November 1978. The accuracy of
ozone trends determined from these data depends on the calibration and
long-term characterization of each instrument. V8.6 calibration adjustments
are determined at the radiance level, and do not rely on comparison of
retrieved ozone products with other instruments. The primary SBUV instrument
characterization is based on prelaunch laboratory tests and dedicated
on-orbit calibration measurements. We supplement these results with "soft"
calibration techniques using carefully chosen subsets of radiance data and
information from the retrieval algorithm output to validate each
instrument's calibration. The estimated long-term uncertainty in albedo is
approximately ±0.8–1.2% (1σ) for most of the instruments.
The overlap between these instruments and the Shuttle SBUV (SSBUV) data
allows us to intercalibrate the SBUV instruments to produce a coherent V8.6
data set covering more than 32 yr. The estimated long-term uncertainty in
albedo is less than 3% over this period. |
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