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Dependence of ``critical cloud fraction' on aerosol composition

Eswaran, K and Satheesh, SK and Srinivasan, J (2015) Dependence of ``critical cloud fraction' on aerosol composition. In: ATMOSPHERIC SCIENCE LETTERS, 16 (3). pp. 380-385.

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Official URL: http://dx.doi.org/10.1002/asl2.571


Recent studies, over regions influenced by biomass burning aerosol, have shown that it is possible to define a critical cloud fraction' (CCF) at which the aerosol direct radiative forcing switch from a cooling to a warming effect. Using 4 years of multi-satellite data analysis, we show that CCF varies with aerosol composition and changed from 0.28 to 0.13 from postmonsoon to winter as a result of shift from less absorbing to moderately absorbing aerosol. Our results indicate that we can estimate aerosol absorption from space using independently measured top of the atmosphere (TOA) fluxes Cloud Aerosol Lidar with Orthogonal Polarization-Moderate resolution Imaging Spectroradiometer-Clouds and the Earth's Radiant Energy System (CALIPSO-MODIS-CERES)] combined algorithms for example.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the WILEY-BLACKWELL, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
Keywords: aerosols; remote sensing
Department/Centre: Division of Mechanical Sciences > Divecha Centre for Climate Change
Division of Mechanical Sciences > Centre for Atmospheric & Oceanic Sciences
Date Deposited: 11 Aug 2015 07:08
Last Modified: 11 Aug 2015 07:08
URI: http://eprints.iisc.ac.in/id/eprint/52068

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