Currents, Gyres, & Eddies - Woods Hole Oceanographic Institution
2021年2月22日 · 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 ...
2023年5月8日 · With the gyre being the Arctic Ocean’s largest freshwater reservoir, “if that freshwater gets released and ends up spreading into the North Atlantic, it could impact the overturning circulation, and, in an extreme case, disrupt it,” said co-author Robert Pickart, a senior scientist in WHOI’s Department of Physical Oceanography.
The Arctic Ocean’s Beaufort Gyre - Woods Hole Oceanographic …
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.
El Niño & Other Oscillations - Woods Hole Oceanographic …
2020年1月8日 · When the index is low, ocean winds are weaker and U.S. winters tend to be more severe. North Pacific Gyre Oscillation (NPGO) One of the most recent oscillations to be described, the North Pacific Gyre Oscillation (NPGO) affects the height of the sea surface in the Northeast Pacific. This, in turn, affects the intensity of the central and ...
Waiting on the next freshwater flush - Woods Hole Oceanographic …
2022年8月25日 · Le Bras: The gyre sets the ocean temperature and salinity over a large portion of the Arctic, which impacts how the ocean and atmosphere interact with each other. In turn, that influences the overall climate. The Beaufort Gyre also impacts how freshwater moves from place to place within the ocean, which can affect ocean currents across the globe.
Arctic Ocean Circulation - Woods Hole Oceanographic Institution
2009年5月13日 · The Arctic Ocean affects the way of life of not only the Arctic native peoples, but also those of us living “downstream,” in Europe and North America. As such, the Arctic Ocean, and the effect of changes that are taking place there, are the focus of intense study by oceanographers of all disciplines.
The Flywheel of the Arctic Climate Engine – Woods Hole …
2006年1月25日 · 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 ...
2019年2月21日 · In a 2018 study, scientists have found that the amount of heat in the trapped warm layer in the Beaufort Gyre, a major Arctic Ocean circulation system north of Alaska, has doubled over the past 30 years. And, if the temperatures continue to spike, it could eventually spell trouble for the ice above.
Signs of Big Change in the Arctic
2016年7月19日 · The gyre encircles a huge reservoir of sea ice and fresh water that drains into the region from many big northern rivers and the Bering Strait. The gyre corrals this pool of ice and fresh water, preventing it from flowing southward into the North Atlantic Ocean. During other periods, however, this complex ocean-ice-atmosphere system shifts gears.
Tracking change in the Arctic Ocean - Woods Hole Oceanographic …
2021年2月22日 · As one of the primary drivers of Arctic Ocean circulation, researchers are closely monitoring this gyre to understand changes in the Arctic region and how it affects the climate at lower latitudes. More than 160 publications have tapped into data from BGOS in recent years, covering such topics as ocean circulation, sea ice changes, and ...