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Sea ice plays important role in variability of carbon uptake by Southern Ocean
7 Articles
7 Articles
Winter sea ice supercharges Southern Ocean’s CO2 uptake
A breakthrough study has uncovered that the Southern Ocean's power to pull carbon dioxide from the atmosphere fluctuates dramatically depending on winter sea ice. When sea ice lingers longer into winter, the ocean absorbs up to 20% more CO2, thanks to a protective effect that blocks turbulent winds from stirring up deeper, carbon-loaded waters. This subtle seasonal shield plays a vital role in buffering our planet against climate change. But her…
Sea ice controls net ocean uptake of carbon dioxide by regulating wintertime stratification
Sea-air exchange of carbon dioxide in the Southern Ocean is strongly seasonal, with ocean uptake in summer, which is partly offset by carbon dioxide outgassing in winter. This seasonal balance can shift due to sea ice conditions, inducing interannual variability in the Southern Ocean carbon sink. A decade (2010–2020) of unique, year-round marine carbonate chemistry observations from the Rothera Time Series (West Antarctic Peninsula) reveals that…
New research shows the importance of winter sea ice in the variability from year to year of the amount of atmospheric CO2 absorbed by an area of the Southern Ocean. In the years when sea ice lasts longer in winter, the ocean generally absorbs 20% more CO2 from the atmosphere than in [...]
The Southern Ocean is largely covered in ice in the winter. If this remains for a longer period, the water absorbs no less than 20 percent more CO2 than in years in which the ice forms late or disappears early. This is evident from new international research by, among others, the University of East […] More science? Read the latest articles on Scientias.nl .
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