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Clear-sky direct aerosol radiative forcing variations over mega-city Delhi

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Fig. 1. Variation of AOD (500 nm) and Angstrom exponent α (340–
Fig. 2. Variation of monthly averages of observed AOD at 500 nm (circle) over Delhi during January 2006–January 2007, and the Angstrom exponent α (triangle) calculated from observation.
Fig. 4. Variation of monthly averages of Black Carbon (BC) con- con-centration during daytime over Delhi during January 2006 to  Jan-uary 2007.
Fig. 7. Effect of change in BC concentration over AOD, SSA and asymmetry factor estimated using OPAC urban aerosol model.
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