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#Antarctic

3 posts3 participants1 post today
Public
Zack Labe

On the other side of the globe, #Antarctic sea ice is beginning to rapidly expand as austral winter approaches. Last month observed quite a bit of regional variability in this area too, though it was generally below the 1981-2010 mean.

Satellite-derived data provided by the National Snow and Ice Data Center (NSIDC).

Two polar stereographic maps side-by-side showing Antarctic sea ice concentration and its anomalies relative to 1981-2010 for April 2025. Red shading is shown for less ice, and blue shading is shown for more ice. More areas are below average than above. Antarctica is masked out in grey shading.
Public *
Fedi.Video

Adam Steer is a (former) polar researcher posting interesting videos from the Arctic and Antarctic, as well as other topics. You can follow at:

➡️ @adam_steer

There are already 11 videos uploaded, if these haven't federated to your server yet you can browse them all at makertube.net/a/adam_steer/vid

You can also follow Steer's general account at @adamsteer

MakerTubeAdam SteerA geospatial and polar nerd. Skis, climbs, loves getting data in strange cold places. Mountain obsessed.
#FeaturedPeerTube#Polar#Arctic
Public
Rob Larter

40 years ago today RRS Discovery III arrived at Montevideo, marking the end of my first #Antarctic and Southern Ocean research cruise. The ship had been my home for four and a half months, since 23rd November. Part of me wanted to head home, but I couldn't pass up the opportunity to explore some of the sights of South America, so my adventure continued.

Public
Robert Sanscartier

Here, using an Earth system model with interactive Antarctic ice-shelf cavities, we show that regional hydrography and topography determine a cavity tipping point. The Filchner–Ronne ice-shelf cavity will encounter such a tipping point with abrupt warm-water intrusion, rapid basal melt increase and massive freshwater release in response to increasing CO2 levels within this century. Conversely, the Ross Ice Shelf shows a more gradual response

nature.com/articles/s41558-025

NatureRegional conditions determine thresholds of accelerated Antarctic basal melt in climate projection - Nature Climate ChangeMelting from below is crucial for the future evolution of Antarctic ice shelves. Here the authors use an Earth system model with explicit simulations of ice-shelf cavities to show how regional hydrography and topography determine when an ice shelf will undergo rapid melting.
#Antarctic#ClimateChange
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