(Faster - than - average warming is not seen in much of Antarctica, because a great deal of thermal inertia is provided to the continent in the form of
strong circumpolar wind and ocean currents.)
Likewise, Antarctic sea ice is also insulated from the warming because of the isolated nature of Antarctica and
the strong circumpolar winds and currents.
«In winter, the freezing Arctic air is normally «locked» by
strong circumpolar winds several tens of kilometers high in the atmosphere, known as the stratospheric polar vortex, so that the cold air is confined near the pole,» said study co-author Marlene Kretschmer from the Potsdam Institute of Climate Impacts Research in Germany, in a press release.
Temperatures typically have the steepest gradients in mid-latitudes and
a strong circumpolar jet stream arises.
Antarctica's
strong Circumpolar Deep Current circles the entire continent, driven by strong winds called westerlies, which also create the Southern Ocean's dangerous and choppy waters.
The trend towards
stronger circumpolar winds has also caused a sea ice extent decline near the Antarctic Peninsula.
Not exact matches
Science diplomacy will play a large role in how indigenous people, the eight
circumpolar countries, and other interested nations negotiate complicated economic, security, and environmental interests while attempting to maintain
strong scientific ties, particularly with the new U.S. administration.
In the southern hemisphere there is a continuous belt of ocean, and hence the mid-latitude westerlies force the
strong Antarctic
Circumpolar Current.
The
circumpolar belt of
strong westerly winds — and storm fronts — are confined to more southerly latitudes.
As a result a very
strong wind, technically called the
Circumpolar Vortex, but more commonly called the Jet Stream blows.
The fastest ocean current in the world, the Antarctic
Circumpolar Current, continuously circles the continent, driven by
strong westerly winds that are unimpeded by land.
Additionally, the intensified winds of the mid-latitude westerlies, and a poleward shift of the
strongest winds toward the Antarctic
Circumpolar Current will also lead to
stronger convergence of surface currents, and
stronger downward heat transport.