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SMAP Data Reveal Critical Effect of Maritime Continent (MC) Water Cycle on Tropical Chokepoint of Global Ocean Circulation
[08-May-19] The Maritime Continent (MC) is a low-latitude chokepoint of the world oceans with the Indonesian throughflow (ITF) linking the Indo-Pacific oceans, influencing global ocean circulation, climate, and biogeochemistry. While previous studies suggested that South-China-Sea freshwaters north of the MC intruding the Indonesian Seas weaken the ITF during boreal winter, the impact of the MC water cycle on the ITF has not been investigated. Here we use ocean-atmosphere-land satellite observations to reveal the dominant contribution of the MC monsoonal water cycle to boreal winter-spring freshening in the Java Sea through local precipitation and runoff from Kalimantan, Indonesia.
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