Investigation of the aerosol optical thickness of the atmosphere in South Atlantic during the 19th cruise of RV Akademik Sergei Vavilov

Sergei M. Sakerin; Dmitry M. Kabanov

doi:10.1117/12.675895

21 April 2006 Investigation of the aerosol optical thickness of the atmosphere in South Atlantic during the 19th cruise of RV Akademik Sergei Vavilov

Sergei M. Sakerin, Dmitry M. Kabanov

Author Affiliations +

Proceedings Volume 6160, Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics; 61602L (2006) https://doi.org/10.1117/12.675895
Event: Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 2005, Tomsk, Russian Federation

Abstract

The results obtained in a new cycle of investigations of the aerosol optical thickness (AOT) are presented.The investigations have been carried out in the 19th cruise of RV Akademik Sergei Vavilov in the Atlantic Ocean since October through December 2004. The atmospheric transmittance was measured with sun photometer in the extended spectral region of 0.3 1 to 4 μm. The most part of the results have been obtained in the southern hemisphere, in particular, in Antarctic Ocean (southward of 34°S). The main attention is paid to the analysis of statistical characteristics of AOT and peculiarities of its spectral dependence in three regions: tropical zone; coastal region (near Cape Town); and Southern Atlantics. It has been found that the atmosphere over ocean in the southern hemisphere has lower AOT values as compared to even more remote regions of the Pacific Ocean. The atmospheric AOTs in the regions southward of 34°S approach the data obtained earlier in Antarctic. Possible causes for the low aerosol content in the atmosphere of the Antarctic Ocean are discussed.

Citation Download Citation

Sergei M. Sakerin and Dmitry M. Kabanov "Investigation of the aerosol optical thickness of the atmosphere in South Atlantic during the 19th cruise of RV Akademik Sergei Vavilov", Proc. SPIE 6160, Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 61602L (21 April 2006); https://doi.org/10.1117/12.675895

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