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Discriminating between natural and anthropogenic aerosol contributions to optical depth over Afro-Asian region

Deepshikha, S and Srinivasan, J (2010) Discriminating between natural and anthropogenic aerosol contributions to optical depth over Afro-Asian region. In: Atmospheric Science Letters, 11 (4). pp. 307-312.

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Abstract

To accurately assess the impact of anthropogenic aerosols on climate, spatial and temporal distribution of its radiative properties is essential. The first step towards separating the radiative impact of natural aerosol from its anthropogenic counterparts is to gather information on natural aerosols. In this paper, we have used data from multiple satellites to derive the anthropogenic aerosol fraction (AAF) over the Afro-Asian region. The AAF was largest during the pre-monsoon season (May-June) and lowest during winter. We have shown that over desert locations the AAF was unexpectedly large (>0.4) and the regionally (and annually) averaged anthropogenic fraction over the Afro-Asian region was 0.54 +/- 0.12. Copyright (C) 2010 Royal Meteorological Society

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: aerosols;remote sensing;optical depth
Department/Centre: Division of Earth and Environmental Sciences > Divecha Centre for Climate Change
Division of Mechanical Sciences > Centre for Atmospheric & Oceanic Sciences
Date Deposited: 27 Dec 2010 07:42
Last Modified: 29 Dec 2010 08:23
URI: http://eprints.iisc.ernet.in/id/eprint/34612

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