Surface pCO2 variability in two contrasting basins of North Indian Ocean using satellite data

نویسندگان

چکیده

The spatial and temporal variability of the partial pressure carbon dioxide (pCO 2 ) over northern tropical Indian Ocean was estimated based on satellite-derived sea surface temperature (SST), salinity (SSS), chlorophyll concentration (Chl-a). distribution pCO is controlled by various physical processes, such as mixing, entrainment, upwelling, advection, associated biological phytoplankton blooms. results showed lower water Bay Bengal (BoB) (< 300 μatm) compared to Arabian Sea (AS), which could be attributed low during northeast monsoon season (December–January) in BoB. High values (> 500 were found near Somali coast southwest (June–August) caused intense coastal upwelling. BoB (400–450 more than that AS fall inter-monsoon (September–November) a response relatively warmer SST highest spatiotemporal observed western higher productivity salinity, respectively, these regions. effect cyclones also assessed this study. much smaller along cyclone track after passage because strong drop sudden blooms entrainment vertical mixing subsurface cold nutrient-rich with water. cyclone-induced cooling decrease Madi Hudhud cyclone. • dominated influx riverine freshwater. are decisive factors governing AS. Tropical induced biogeochemical affecting

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ژورنال

عنوان ژورنال: Deep-sea Research Part I-oceanographic Research Papers

سال: 2022

ISSN: ['0967-0637', '1879-0119']

DOI: https://doi.org/10.1016/j.dsr.2021.103665