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Polar Meteorology

@metpolarintl.bsky.social

85 followers 5 following 11 posts

International Commission on Polar Meteorology (ICPM). Representing research into the meteorology and climatology of the Arctic and Antarctic. https://www.iamas.org/icpm/ Posting by @jonathanwille.bsky.social, @banrionsneachta.bsky.social

www.iamas.org

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Polar Meteorology @metpolarintl.bsky.social · Aug 1

In case you need a podcast listen for the weekend, we recommend Beyond the Ice from the British Antarctic Survey. Check out the latest episode where Dr. Michelle Maclennan discusses the state of extreme weather over Antarctica and recent ice mass increases open.spotify.com/episode/30Tu...

10: How do we actually *know* Antarctica is melting? | Dr Michelle Maclennan

Beyond the Ice · Episode

open.spotify.com

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Polar Meteorology @metpolarintl.bsky.social · May 26

New paper shows through a modelling experiment that reduced Antarctic sea ice may cause a positive feedback loop where the atmospheric response drive even further sea ice loss agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Modeling the Impacts of Antarctic Sea Ice Decline: Responses of Atmospheric Dynamics

Increased zonal wind stress over the ocean surface leads to a decline in sea ice and a rise in sea surface temperature Surface atmospheric changes become more evident during austral winter and sp...

agupubs.onlinelibrary.wiley.com

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Polar Meteorology @metpolarintl.bsky.social · May 15

Great new paper recently published providing a detailed analysis on how Antarctic atmospheric river behavior will change in the future

Michelle Maclennan @michelle-maclennan.bsky.social · May 14

In today’s climate, #atmosphericrivers play a major role in bringing snowfall to #Antarctica. Have you ever wondered how that might change in the future?

Out today, our new study on the future frequency and precipitation impacts of Antarctic atmospheric rivers:
www.nature.com/articles/s43...

Rising atmospheric moisture escalates the future impact of atmospheric rivers in the Antarctic climate system - Communications Earth & Environment

Antarctic atmospheric rivers are projected to double in frequency and cause 2.5 times more precipitation by 2066–2100 due to rising atmospheric moisture, according to large ensemble climate simulation...

www.nature.com

Polar Meteorology @metpolarintl.bsky.social · Mar 18

New paper alert! Great study reveals that high-resolution modelling is important for capturing rainfall and surface melting response from Antarctic atmospheric rivers. link.springer.com/article/10.1... @marlenkolbe.bsky.social sky.social @ruthmottram.bsky.social

link.springer.com

Reposted by Polar Meteorology

Jonathan Wille @jonathanwille.bsky.social · Feb 11

🧵 1/4 I'm very happy to share this comprehensive review paper covering atmospheric rivers in Antarctica. It was an idea that started during a workshop in Boulder back in summer 2023 and now is finally published thanks to an amazing team effort rdcu.be/d9nFY.

Atmospheric rivers in Antarctica

Nature Reviews Earth & Environment - Atmospheric rivers provide the majority of water vapour transport to the high latitudes. This Review summarizes Antarctic atmospheric river dynamics and...

rdcu.be

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Polar Meteorology @metpolarintl.bsky.social · Feb 11

Fantastic paper out today that shows rainfall in Antarctica is an under-observed and under-appreciated risk to ice-sheet stability

Dr Ella Gilbert @drgilbz.bsky.social · Feb 11

📝NEW paper out today🥳

❄️We look at extreme snow and rain (yes, rain!) in West Antarctica over the Thwaites and Pine Island ice shelves.

In it, we show that atmospheric rivers - long, thin "rivers in the sky" that bring tons of heat & moisture - deliver huge amounts of snow... and even rain 🌧️

1/8

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Polar Meteorology @metpolarintl.bsky.social · Jan 23

Excellent new paper recently published on the increase of rapid Arctic sea-ice loss events and the connection with cyclones and a thinning ice pack. www.nature.com/articles/s43...

Sea ice loss in association with Arctic cyclones - Communications Earth & Environment

Weather time-scale sea ice loss events have become more frequent during the recent decades in summer, which occur in areas with thin sea ice when affected by Arctic cyclones and preceded by upper-leve...

www.nature.com

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Polar Meteorology @metpolarintl.bsky.social · Dec 11

And flipping to the Arctic, another recent paper highlights the growing contribution of atmospheric rivers to the total Greenland surface mass balance. #Greenland #meteorology

Impact of Atmospheric River Evolutions on Greenland Ice Sheet Mass Changes Over the Last Two Decades, 2000–2019

Atmospheric rivers (ARs) serve as mechanisms that transport water vapor to the poles, triggering extreme weather events, altering weather patterns ove…

www.sciencedirect.com

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Polar Meteorology @metpolarintl.bsky.social · Dec 11

Exciting new research on Antarctic atmospheric rivers that, among many things, confirms that sea-ice acts as a buffer weakening atmospheric rivers before they make landfall. Disappearing sea ice will mean stronger atmospheric rivers in the future. #antarctica #meteorology

Vertical structure and surface impact of atmospheric rivers reaching antarctic sea ice and land

Recent extremes in Antarctic temperature, surface melt and sea ice loss have been robustly linked to the occurrence of atmospheric rivers (ARs). Howev…

www.sciencedirect.com

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Polar Meteorology @metpolarintl.bsky.social · Dec 4

The Conger Ice Shelf in East Antarctica collapsed during the dramatic heatwave in March 2022. An excellent new paper tells the story of the Conger Ice Shelf's long-term demise. @luketrusel.cryospherelab.org www.nature.com/articles/s41...

Multi-decadal collapse of East Antarctica’s Conger–Glenzer Ice Shelf - Nature Geoscience

Satellite observations reveal that the Conger–Glenzer Ice Shelf collapse in East Antarctica occurred in four stages spanning a period of 25 years, culminating in its rapid disintegration in March 2022...

www.nature.com

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Polar Meteorology @metpolarintl.bsky.social · Nov 29

High-resolution ocean modeling may reveal more details on the vulnerability of Antarctic ice shelves.

Nikolay Koldunov @oceanographer.bsky.social · Nov 29

🌊 Ocean currents around Antarctica from our high-resolution (3 km) ocean model. 🧪

#FESOM #SciArt

Polar Meteorology @metpolarintl.bsky.social · Nov 29

New research shows that warm Southern Ocean sea surface temperatures are mainly to blame for record-low 2023 sea-ice extent. As long as sea surface temperatures remain elevated, sea ice extent will likely remain limited. www.nature.com/articles/s43...

Understanding the drivers and predictability of record low Antarctic sea ice in austral winter 2023 - Communications Earth & Environment

70% of the Antarctic sea ice area’s record low anomaly in 2023 was due to warm Southern Ocean sea surface temperatures, while 30% was due to atmospheric circulation, and the transition from La Niña to...

www.nature.com

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