Change in precipitation pattern over South Asia in response to the trends in regional warming and free-tropospheric aerosol loading.

ABSTRACT: Spatial and temporal shifts in rainfall patterns over South Asia and the adjoining Seas during the pre-monsoon season have been observed over the past 2 decades from 2000 to 2019. Aerosol particles suspended above the boundary layer are a contributing factor to these changes. These particles not only alter cloud characteristics, but also diminish the lapse rate, thereby suppressing convective activity, leading to precipitation anomalies. Over the past 2 decades, high-rainfall regions have experienced declining rainfall, while low-rainfall regions have received increased rainfall. Coinciding with notable anomalies in precipitation, contrasting trends in aerosol optical depth, particularly due to absorbing aerosols in the elevated regions of the atmosphere, are seen. Apart from aerosols, sev

SUBMITTER: Jana S 

PROVIDER: S-EPMC11196666 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature