Advection induced short period anomalies and seasonal features in aerosol optical depth over Bay of Bengal in the W-ICARB region

► Regional short term perturbations in AOD over BoB are studied statistically. ► Advection from the India is inducing 98% perturbations over western BoB. ► East Asian advection is causing 84% perturbations in southern BoB. ► Major advection is from IGB over west BoB in winter and East Asia in other seasons. ► Increasing trend in AOD over western BoB from 2005 to 2010 is observed.