Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Oceanстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 июля 2017 г.
Аннотация:Arctic sea-ice loss is a leading indicator of climate change and can be attributed, in large
part, to atmospheric forcing. Here, we show that recent ice reductions, weakening of the
halocline, and shoaling of the intermediate-depth Atlantic Water layer in the eastern
Eurasian Basin have increased winter ventilation in the ocean interior, making this region
structurally similar to that of the western Eurasian Basin. The associated enhanced
release of oceanic heat has reduced winter sea-ice formation at a rate now comparable to
losses from atmospheric thermodynamic forcing, thus explaining the recent reduction in
sea-ice cover in the eastern Eurasian Basin. This encroaching “atlantification” of the
Eurasian Basin represents an essential step toward a new Arctic climate state, with a
substantially greater role for Atlantic inflows.