Cloud and aerosol characteristics during dry and wet days of southwest monsoon over the rain shadow region of Western Ghats, India
Si-rich particles were the dominant species in aerosol samples collected during dry days when the shallow clouds with narrow drop size distribution were observed. A higher concentration of Na-rich particles was observed on wet days when the clouds were majorly multiple layers of stratus, which had broader cloud droplet spectra. Internally mixed carbonaceous and iron/cobalt-rich aerosols from local pollution sources were found on both wet and dry days suggesting boundary layer venting of aerosols. Large droplets were observed near the cloud base over the Western Ghats compared to those formed over the rain shadow region.
[Varghese M., ... et al, Meteorology and Atmospheric Physics, June 2021, DOI: 10.1007/s00703-021-00811-3, 1-18]