Optical, radiative, and source characteristics of aerosols at Minicoy, a remote island in the southern Arabian Sea

Vinoj, V and Satheesh, SK and Moorthy, K Krishna (2010) Optical, radiative, and source characteristics of aerosols at Minicoy, a remote island in the southern Arabian Sea. In: Journal Of Geophysical Research-Atmospheres, 115 .

PDF 13.pdf - Published Version Restricted to Registered users only Download (1MB) | Request a copy

Abstract

Extensive measurements of aerosol radiative and microphysical properties were made at an island location, Minicoy (8.3 degrees N, 73.04 degrees E) in the southern Arabian Sea. A large variability in aerosol characteristics associated with changes in air mass and precipitation characteristics was observed. Six distinct transport pathways were identified on the basis of cluster analysis. The Indo-Gangetic Plain, along with the northern Arabian Sea and west Asia (NWA), was identified to be the region having the highest potential for aerosol mass loading at the island. This estimate is based on the concentration weighted trajectory as well as cluster analysis. Dust transport from the NWA region was found to make a substantial contribution to the supermicron mass fraction. The black carbon mass mixing ratios observed were the lowest compared to previous measurements over this region. Consequently, the atmospheric radiative forcing efficiency was low and was in the range 10-28 W m(-2).

Item Type:	Journal Article
Publication:	Journal Of Geophysical Research-Atmospheres
Publisher:	American Geophysical Union
Additional Information:	Copyright for this article belongs to American Geophysical Union.
Department/Centre:	Division of Mechanical Sciences > Centre for Atmospheric & Oceanic Sciences
Date Deposited:	27 Jan 2010 09:52
Last Modified:	19 Sep 2010 05:54
URI:	http://eprints.iisc.ac.in/id/eprint/25460

Actions (login required)

View Item