Publication

Abstract : This study focuses on the satellite observations from space-borne sensors and their usefulness in understanding atmospheric radiative changes in the presence of aerosol in a regional climate system. For this analysis, four years (2014–2017) of aerosol and flux products along with other meteorological parameters are used which are obtained from satellite remote sensing products. The radiative flux products available from Cloud and the Earth’s Radiant Energy System (CERES) along with the products pertaining to atmosphere thermodynamics available from Moderate resolution Imaging Spectroradiometer (MODIS) are included in this study. This study is an attempt to understand the possible effects of the presence of aerosol in perturbing the seasonal atmospheric dynamics and radiation budget, based on space borne observation systems. This study is aimed at atmospheric changes over Delhi, India, under different aerosol loading conditions. Significant changes have been observed in the atmospheric meteorological parameters and simultaneous modulation in radiation fluxes are perceived with the aerosol variation for 3 different seasons. The relationship between thermodynamic environment and its sensitivity in presence of aerosol has put forth a vital area for further studies. This analysis draws insight towards a merged hypothesis for the simultaneous roles of thermodynamics and aerosols in influencing the atmosphere dynamics and radiative effect modifying the energy budget and atmospheric processes on a local scale as well as a utility of space borne remote sensing in analysing environmental aspects.