Saharan Aerosols over the South of France: Characterization Derived from Satellite Data and Ground Based Measurements

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  • 1 Laboratoire d'Optique Atmosphérique, Université des Sciences et Techniques de Lille, France
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Abstract

In July 1983, the summer transport of Saharian aerosols across the Mediterranean Sea was observed. The dust cloud was particularly dense and was clearly detected in A.V.H.R.R. and METEOSAT imageries. Optical thickness and Angström coeffcients have been derived from these pictures. During the same period, ground based observations—transmission, aureole and polarization measurements—were performed at the Observatoire de Haute Provence (southeast of France). Measured aerosol optical thickness at 550 nm were as large as about 1.5.

The optical thicknesses and Angström coefficients derived from the two experiments are compared and are in good agreement.

Abstract

In July 1983, the summer transport of Saharian aerosols across the Mediterranean Sea was observed. The dust cloud was particularly dense and was clearly detected in A.V.H.R.R. and METEOSAT imageries. Optical thickness and Angström coeffcients have been derived from these pictures. During the same period, ground based observations—transmission, aureole and polarization measurements—were performed at the Observatoire de Haute Provence (southeast of France). Measured aerosol optical thickness at 550 nm were as large as about 1.5.

The optical thicknesses and Angström coefficients derived from the two experiments are compared and are in good agreement.

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