Retrieval of aerosol optical depth from satellite measurements using single- and dual-view algorithms

Gerrit de Leeuw; Cristina Robles Gonzalez; Jolanta Kusmierczyk-Michulec; Rob Decae; Pepijn Veefkind

doi:10.1117/12.462574

18 April 2003 Retrieval of aerosol optical depth from satellite measurements using single- and dual-view algorithms

Gerrit de Leeuw, Cristina Robles Gonzalez, Jolanta Kusmierczyk-Michulec, Rob Decae, Pepijn Veefkind

Proceedings Volume 4882, Remote Sensing of Clouds and the Atmosphere VII; (2003) https://doi.org/10.1117/12.462574
Event: International Symposium on Remote Sensing, 2002, Crete, Greece

Abstract

To retrieve aerosol properties from the radiance measured at the top of the atmosphere in clear sky conditions, the contributions of the surface and the various atmospheric constituents need to be separated. This is easiest done over dark surfaces, i.e. with a negligible reflectance that can relatively easily be accounted for. This principle has been used for the retrieval of aerosol optical depth (AOD) over water from satellite observations in the near-infrared. The AOD at wavelengths in the UV can be determined both over water and over land, using the same principle of a dark surface. For longer wavelengths, the dual view provided by ATSR-2 is used to separate the aerosol reflectance from the surface contribution. Single and dual-view algorithms have been developed by TNO-FEL and tested for the US east coast and over Europe. Currently the algorithms are extended with other aerosol types and tested versus data over the Indian Ocean (INDOEX area) and South Africa (SAFARI experiment). The initial results indicate that the AOD can be retrieved within reasonable limits. Apart from the ATSR-2, algorithms aimed at the determination of aerosol optical depth and composition are developed for AATSR and SCIAMACHY (ENVISAT) and OMI (EOS-TERRA).

Citation Download Citation

Gerrit de Leeuw, Cristina Robles Gonzalez, Jolanta Kusmierczyk-Michulec, Rob Decae, and Pepijn Veefkind "Retrieval of aerosol optical depth from satellite measurements using single- and dual-view algorithms", Proc. SPIE 4882, Remote Sensing of Clouds and the Atmosphere VII, (18 April 2003); https://doi.org/10.1117/12.462574

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