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| Titel |
Validation of SCIAMACHY top-of-atmosphere reflectance for aerosol remote sensing using MERIS L1 data |
| VerfasserIn |
W. Hoyningen-Huene, A. A. Kokhanovsky, M. W. Wuttke, M. Buchwitz, S. Noël, K. Gerilowski, J. P. Burrows, B. Latter, R. Siddans, B. J. Kerridge |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 7, no. 1 ; Nr. 7, no. 1 (2007-01-10), S.97-106 |
| Datensatznummer |
250004347
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| Publikation (Nr.) |
 copernicus.org/acp-7-97-2007.pdf |
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| Zusammenfassung |
Aerosol remote sensing is very much dependent on the accurate
knowledge of the top-of-atmosphere (TOA) reflectance measured by
a particular instrument. The status of the calibration of such an
instrument is reflected in the quality of the aerosol retrieval.
Current data of the SCIAMACHY (SCanning Imaging Absorption
spectroMeter for Atmospheric CHartographY) instrument (operated
with the data processor version 5 and earlier) give too small
values of the TOA reflectance, compared e.g. to data from MERIS
(Medium Resolution Imaging Spectrometer), both operating on
ENVISAT (ENVIronmental SATellite). This effect causes retrievals
of wrong aerosol optical thickness and disables the processing of
aerosol parameters.
From an inter-comparison of MERIS and SCIAMACHY TOA reflectance,
for collocated scenes correction factors are derived to improve
the insufficient SCIAMACHY L1 data calibration for data obtained
with the processor 5 for the purpose of aerosol remote sensing.
The corrected reflectance has been used for tests of remote
sensing of the aerosol optical thickness by the BAER (Bremen
AErosol Retrieval) approach using SCIAMACHY data. |
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