Sustained freshening of Arabian Sea High Salinity Water induced by extreme precipitation events.

ABSTRACT: In the northern Arabian Sea, high salinity levels are primarily sustained by year-round evaporation, driving the convective formation of Arabian Sea High Salinity Water (ASHSW) during the winter monsoon (November-February). Although precipitation has largely been discounted as a critical controlling mechanism for winter convection, recent years have seen a notable increase in extreme cyclones over the Arabian Sea, particularly in post-monsoon cyclones (September-December) since 2014. However, the extent to which these cyclone-induced freshwater inputs disrupt the region's freshwater balance (evaporation - precipitation) and impact ASHSW formation remains unclear. Here, we present observational evidence supported by a suite of model simulation experiments, revealing a significant weakening

SUBMITTER: Thoppil PG 

PROVIDER: S-EPMC12006309 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature