Coastal Hypoxia in the Indian Ocean: Unraveling Drivers of Spatio-Temporal Variability.

ABSTRACT: Coastal hypoxia in the densely populated Indian Ocean regions has dramatic consequences for ecosystems and ecosystem services such as fisheries and coastal protection. However, inadequate understanding of the spatio-temporal variability of coastal hypoxia in the region, and its physical and biological drivers, poses a major challenge for anticipating these risks. Here we use in-situ observations and a high-resolution (1/12 degree) biophysical model of the Indian Ocean to map areas with heightened vulnerability to coastal hypoxia and identify the drivers of coastal oxygen dynamics. We find strong regional disparities in the mechanisms and temporal scales that govern coastal hypoxia: seasonal upwelling in the eastern Arabian Sea, interannual upwelling/downwelling linked to Indian Ocean Dipol

SUBMITTER: Yang F 

PROVIDER: S-EPMC12326294 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature