Categories: Kryosfärkapslar

Atmospheric Rivers in Antarctica Trigger Extremes: From Snowfall to Ice Melt and Instability

Nature Reviews: Earth and Environment, 11 February 2025

A recent review article explains the history of atmospheric rivers in Antarctica, highlighting that the rivers have led to 50-70% of extreme snowfalls, but have also triggered major surface melting events. The review warns that atmospheric rivers will likely grow more frequent and intense with rising global temperatures. This extreme weather brings heat and moisture closer to the ice, playing a complex role in ice sheet dynamics. While currently contributing to snowfall accumulation, which benefits the ice sheet, it also can produce intense surface melt, sweep away supportive sea ice, or even spur large ocean swells, which brought about the notable ice shelf collapses in 1995 and 2002 as well as more recently in 2022. With climate change projected to intensify these atmospheric rivers, it is important to note the potential for increased melt and ice shelf instability. Investing in research to better understand the future impacts of these events is crucial for effective climate planning and sea level rise estimations.

https://www.nature.com/articles/s43017-024-00638-7

Pam Pearson

Recent Posts

Record Low Snow in Hindu Kush Himalaya Threatens Water Supply

ICIMOD, April 24, 2026 2026 marks the fourth consecutive year of below-average snow conditions in…

4 dagar ago

Global Warming Weakens AMOC While Temporarily Strengthening Nordic Overturning Circulation

Ocean Science, 20 Apr 2026 Global warming and increased freshwater input from melting ice are…

4 dagar ago

Lack of Monitoring for Glacier Biodiversity: A Critical Gap in EU Policy

Science, 23 Apr 2026 Specially-adapted species living in glacier regions face rapid snowpack and ice…

4 dagar ago

Tides and Ocean Layering Shape Ice Shelf Melt, Impacting Antarctic Sea-Level Rise Projections

Science Advances, 24 Apr 2026 Observations from the grounding zone beneath the Ross Ice Shelf…

4 dagar ago

COP30 Video of the Week: Forecast-Based Financing and Adaptation in the Hindu Kush Himalaya

The Hindu Kush Himalaya faces rising climate extremes that threaten mountain communities, demanding a shift…

4 dagar ago

Without Emissions Cuts, A Real Risk of Extreme Sea-level Rise by 2100

Philosophical Transactions of the Royal Society, 23 April 2026 Observations suggest we are currently tracking…

3 veckor ago