ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Aerosol black carbon over Arabian Sea during intermonsoon and summer monsoon seasons

Babu, Suresh S and Moorthy, Krishna K and Satheesh, SK (2004) Aerosol black carbon over Arabian Sea during intermonsoon and summer monsoon seasons. In: Geophysical Research Letters, 31 (6).

Full text not available from this repository. (Request a copy)
Official URL: http://www.agu.org/pubs/crossref/2004/2003GL018716...

Abstract

Extensive, collocated measurements of the mass concentrations of composite and black carbon (BC) aerosols were made over coastal Arabian Sea, adjoining Indian Peninsula, for the first time during the inter-monsoon and summer monsoon periods, of 2003, as part of Arabian Sea Monsoon Experiment (ARMEX). Results showed that the diurnal variations are weak in March, and vanish completely by May/June, associated with the change in the synoptic circulations. The concentration of BC (and its share to total aerosol mass) decreases continuously, from similar to700 ng m(-3) (2.5%) in March to similar to104 ng m(-3) (0.5%) by June. Consequently, the net atmospheric forcing (heating) efficiency decreases from similar to70 W m(-2) (for reported winter conditions) to similar to30 W m(-2) for inter-monsoon and to similar to15 W m(-2) for summer monsoon seasons. These will have implications on regional climate forcing.

Item Type: Journal Article
Additional Information: copyright of this article belongs to American Geographcal Union
Keywords: Indian-Ocean experiment;Long-rang transport;Optical Properties;Marine Atmoshphere;Soot carbon;Size;Absoption;Origin.
Department/Centre: Division of Mechanical Sciences > Centre for Atmospheric & Oceanic Sciences
Date Deposited: 03 Dec 2008 05:59
Last Modified: 03 Dec 2008 05:59
URI: http://eprints.iisc.ernet.in/id/eprint/16557

Actions (login required)

View Item View Item