熔化的冰架引发了西极冰持续流失的无情循环

Science Advances, 17 April 24

Researchers have identified a new positive feedback loop that intensifies ice shelf loss, suggesting that the West Antarctic Ice Sheet is more vulnerable to temperature rise than previously expected. The feedback loop is self-reinforcing: increased ice shelf melting produces more freshwater, strengthening the undercurrent transporting warm water toward the ice shelves from further offshore. If current emissions continue, this cycle will grow stronger over time; and further destabilize West Antarctica as warm waters increasingly fill the cavities under ice shelves.

全文 https://www.science.org/doi/10.1126/sciadv.adl0601
通俗易懂的简报: https://www.southampton.ac.uk/news/2024/04/feedback-loop-melting-ice-shelves-in-west-antarctica.page

帕姆·皮尔森

最新帖子

Lakes at the Edge of the Greenland Ice Sheet Increase Ice Loss, Sea-level Rise

Nature Communications, 1 April 2026 A growing network of meltwater lakes along the edge of…

2 周 ago

Arctic River Rusting Driven by Iron Release from Permafrost Thaw

Nature Communications, 6 April 2026 Arctic warming increases the amount of iron draining out of…

2 周 ago

Northern Arctic Vegetation Takes Decades to Recover Following Abrupt Permafrost Thaw

Nature Climate Change, 30 March 2026 Rising temperatures increase the frequency of retrogressive thaw slumps…

2 周 ago

Only Low Emissions Scenarios Slow Growth in Antarctic Surface Melt

Nature Communications, 30 March 2026 Surface melting in Antarctica is projected to increase this century,…

2 周 ago

COP30 Video of the Week: Monitoring Global Permafrost Thaw and Climate Feedbacks

Permafrost is a critical component of the global climate system because its thaw releases vast…

2 周 ago

Shutdown of AMOC Could Release Ocean Carbon, Increasing Global Warming

Communications Earth & Environment, 27 March 2026 The potential collapse of the major system of…

2 周 ago