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[137] [138] Climate change affects the AMOC by making surface water warmer as a consequence of Earth's energy imbalance and by making surface water less saline due to the addition of large quantities of fresh water from melting ice – mainly from Greenland – and through increasing precipitation over the North Atlantic. Both of these causes ...
Ice shoves can be caused by temperature fluctuations, wind action, or changing water levels [3] and can cause devastation to coastal Arctic communities. Cyclical climate change will also play a role in the formation and frequency of ice shove events; a rise in global temperatures leads to more open water to facilitate ice movement.
There are several reasons to expect that climate changes, from whatever cause, may be enhanced in the Arctic, relative to the mid-latitudes and tropics. First is the ice-albedo feedback, whereby an initial warming causes snow and ice to melt, exposing darker surfaces that absorb more sunlight, leading to more warming.
If the wind patterns shift into a cyclonic circulation due to the residence of a low pressure system (rising air induced by warmer ocean temperatures a greater volume of open Arctic Ocean water), this will cause the circulation of the Beaufort Gyre to reverse and flow counter-clockwise.
It was observed for the first time in the first decade of 2000s and is perhaps linked to recent climate change. [3] The Arctic dipole lets more southern winds into the Arctic Ocean resulting in more ice melting. [1] The summer 2007 event played an important role in the record low sea ice extent which was recorded in September. [2]
A brutal Arctic blast is bringing record-low temperatures and life-threatening wind chills across a large swath of the United States as snow and ice spread from the South to New England and a new ...
The season's most drastic drop in temperatures has now engulfed the central and eastern states with dangerous wind chills and the arctic air could even topple some record lows. Extreme cold ...
Ice–albedo feedback is a climate change feedback, where a change in the area of ice caps, glaciers, and sea ice alters the albedo and surface temperature of a planet. Because ice is very reflective, it reflects far more solar energy back to space than open water or any other land cover. [1] It occurs on Earth, and can also occur on exoplanets ...