Frequency distribution of aerosol optical depth over Varanasi during 2011

Abstract

This work is based on the distribution of aerosol optical depth (AOD) over Varanasi site (25.270N, 82.990E). Ground based measurement is taken from MICROTOPSII sunphotometer and satellite based image data is taken from Moderate Resolution Imaging Spectroradiometer (MODIS). AOD is found to be vary mostly between 0.4 to 1.0 and Angstrom Exponent showing variation between 0.5-0.7 and 0.9-1.3, which shows mixture of course mode as well as fine mode aerosol particles over Varanasi. © 2020 Indian Radio Science Society.