NOWCAST: Fate of early-2000's Arctic warm water pulseстатья
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: 27 ноября 2016 г.
Аннотация:The water mass structure of the Arctic Ocean is
remarkable, for its intermediate (depth range
~150–900 m) layer is filled with warm (temperature
>0°C) and salty water of Atlantic origin
(usually called the Atlantic Water, AW). This water
is carried into and through the Arctic Ocean by the
pan-Arctic boundary current, which moves cyclonically
along the basins’ margins (Fig. 1). This system
provides the largest input of water, heat, and salt
into the Arctic Ocean; the total quantity of heat is
substantial, enough to melt the Arctic sea ice cover
several times over. By utilizing an extensive archive
of recently collected observational data, this study
provides a cohesive picture of recent large-scale
changes in the AW layer of the Arctic Ocean. These
recent observations show the warm pulse of AW that
entered the Arctic Ocean in the early 1990s finally
reached the Canada Basin during the 2000s. The
second warm pulse that entered the Arctic Ocean
in the mid-2000s has moved through the Eurasian
Basin and is en route downstream. One of the most
intriguing results of these observations is the realization
of the possibility of uptake of anomalous AW
heat by overlying layers, with possible implications
for an already-reduced Arctic ice cover.