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Aerosol optical depth over Europe in August 1997 derived from ATSR‐2 data
Author(s) -
Gonzalez C. Robles,
Veefkind J. P.,
de Leeuw G.
Publication year - 2000
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/1999gl010962
Subject(s) - aerosol , environmental science , satellite , radiometer , spatial distribution , remote sensing , on board , advanced very high resolution radiometer , optical depth , sun photometer , meteorology , climatology , geology , geography , aerospace engineering , engineering
Data from the Along Track Scanning Radiometer 2 (ATSR‐2) on board the European ERS‐2 satellite have been used to derive the spatial distribution of the aerosol optical depth (AOD) over Europe for August 1997. The AOD was retrieved in cloud‐free areas using the dual view algorithm. The results agree with co‐located ground based sun‐photometer data within 0.1. The AOD from ATSR‐2 with a resolution of 1×1 km² were averaged on a grid of 0.1° × 0.1°, to produce daily maps of the spatial aerosol distribution over Europe. A composite map of AOD over Europe was constructed by averaging all daily maps for August 1997. This composite map shows large spatial AOD gradients with variations of a factor of 3 over a few hundreds of kilometers. The AOD at 0.555 µm for relatively clean areas is around 0.1 while in strong industrialised areas the AOD can be 0.5 or higher.