Atmos. Chem. Phys. Discuss., 6, 673-699, 2006
www.atmos-chem-phys-discuss.net/6/673/2006/
doi:10.5194/acpd-6-673-2006
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Review Status
This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Validation of SCIAMACHY top-of-atmosphere reflectance for aerosol remote sensing using MERIS L1 data
W. von Hoyningen-Huene1, A. A. Kokhanovsky1, M. W. Wuttke1, M. Buchwitz1, S. Noël1, K. Gerilowski1, J. P. Burrows1, B. Latter2, R. Siddans2, and B. J. Kerridge2
1Institute of Environmental Physics/Remote Sensing, University of Bremen, Germany
2Space Science and Technology Department, Rutherford Appleton Laboratories, Chilton, UK

Abstract. Aerosol remote sensing is very much dependent on the quite accurate knowledge of the top-of-atmosphere (TOA) reflectance retrieved by a particular instrument. The status of the calibration of such an instrument thus is reflected in the quality of the aerosol retrieval. Currently the SCIAMACHY (SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY) instrument gives too low values of the TOA reflectance, compared e.g. to data from MERIS (Medium Resolution Imaging Spectrometer), both operating on ENVISAT (ENVIronmental SATellite), but the calibration of the operational L1 product of SCIAMACHY is not yet finished.

From an inter-comparison of MERIS and SCIAMACHY TOA reflectance, for collocated scenes correction factors are derived to improve the current SCIAMACHY L1 data for the purpose of aerosol remote sensing. The corrected reflectance has been used for a first remote sensing of the aerosol optical thickness by the BAER (Bremen AErosol Retrieval) approach using SCIAMACHY data.


Citation: von Hoyningen-Huene, W., Kokhanovsky, A. A., Wuttke, M. W., Buchwitz, M., Noël, S., Gerilowski, K., Burrows, J. P., Latter, B., Siddans, R., and Kerridge, B. J.: Validation of SCIAMACHY top-of-atmosphere reflectance for aerosol remote sensing using MERIS L1 data, Atmos. Chem. Phys. Discuss., 6, 673-699, doi:10.5194/acpd-6-673-2006, 2006.
 
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