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- Currents, Gyres, Eddies - Woods Hole Oceanographic Institution
Another subpolar gyre, the only one centered on a landmass, circles Antarctica driven by the near-constant westerly winds that blow over the Southern Ocean, unimpeded by land Boundary Currents The subtropical gyres are surrounded by four linked currents: two boundary currents oriented roughly north-south at their eastern and western edges and
- First Observational Evidence of Beaufort Gyre Stabilization, Which . . .
The recent documented state of the gyre “does not represent a return to the initial condition of 2003 when the gyre was weak and located partially in the southeastern basin Instead, under the strengthened wind stress curl, the gyre has continuously intensified even though it has contracted, and it has maintained its excess freshwater storage
- Waiting on the next freshwater flush
Le Bras: The gyre’s large swirling circulation has accumulated and then released freshwater to other parts of the ocean, with an approximately 5-10-year pattern going on, we think, at least since the 1930s Previous freshwater releases in the 1970s and 1980s have been associated with short-lived freshening events in the North Atlantic
- Signs of Big Change in the Arctic
The gyre corrals this pool of ice and fresh water, preventing it from flowing southward into the North Atlantic Ocean (Illustration by Eric S Taylor, Woods Hole Oceanographic Institution) During the low-pressure phase in the Arctic, cyclonic storm systems that form in the North Atlantic move up into the Arctic, bringing heat and moisture
- The Arctic Ocean’s Beaufort Gyre - Woods Hole Oceanographic Institution
An important feature of Beaufort Gyre is the low salinity lens that has formed at the surface due to the anticyclonic (clockwise) wind stress on the ocean that drives convergent surface water flow and in turn, the anticyclonic Beaufort Gyre
- The Flywheel of the Arctic Climate Engine
The gyre accumulates fresh water created when ice melts More fresh water drains into it from big northern rivers Winds typically corral this huge freshwater reservoir, but when they periodically diminish, the gyre weakens, vast volumes of trapped fresh water leak out, and climate conditions shift
- A ‘Ticking Time Bomb’ in the Arctic - Woods Hole Oceanographic . . .
Beaufort Gyre Exploration Project Woods Hole Oceanographic Institution is the world's leading non-profit oceanographic research organization Our mission is to explore and understand the ocean and to educate scientists, students, decision-makers, and the public
- Ocean Gyre Circulation Changes Associated with the North Atlantic . . .
Atlantic gyre circulation related to the atmospheric North Atlantic Oscillation (NAO) patterns A two-point baroclinic pressure difference between the subtropical and subpolar gyre centers—an oceanic analogue to the much-used sea level pressure (SLP)-based atmospheric NAO indices—is constructed from time series of potential
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