Spatial distribution and vertical structure of the MABL aerosols over Bay of Bengal during winter: Results from W-ICARB experiment

► The paper reports the first ever in-situ measurements of size-segregated vertical profiles of aerosol in the marine atmospheric boundary layer over the Bay of Bengal. ► Vertical profile of aerosol number density is found to be steady in the convective boundary layer. ► Above the convective boundary layer aerosol concentration is found to decrease. ► Aerosols advected from Indo-Gengetic plain with strong natural component and from the east Asian region with anthropogenic component to Bay of Bengal.