Antarctic sea ice extent (SIE) reached a new record low in February 2023. Here we examine the evolution of the coupled ocean-atmosphere-sea ice system during the 12 months preceding the record. The impact of preceding conditions is assessed with observations, reanalyses, and output from the ...
29, 2023, 3:55 AM Experts speculate that the Antarctic sea ice system has entered a new regime of much lower ice extent.Arctic sea ice just reached its yearly minimum, ranking as the sixth lowest extent we've seen since 1979. Meanwhile, at the othe...
the sea ice area and extent from December to February fall within one standard deviation of the predicted values, underscoring the reliability of the forecasting system.
On 19 February 2023, a new minimum Antarctic sea ice extent of 1.77 million square kilometres was observed4, 1.02 million square kilometres (36%) less than the 1979-2022 average daily minimum sea ice coverage. In late-December 2022, sea ice extent plummeted and remained exceptionally low ...
It's not a great year for polar sea ice. Both the Arctic and Antarctic have seen record lows in sea ice extent, according to NASA and the National Snow and Ice Data Center (NSIDC), which use satellite data to track sea ice across both polar regions. Arctic sea ice likely reached its...
Spolaor A, Vallelonga P, Plane JMC, Kehrwald N, Gabrieli J, Varin C, Turetta C, Cozzi G, Kumar R, Boutron C, Barbante C (2013) Halogen species record Antarctic sea ice extent over glacial-interglacial periods. Atmos Chem Phys 13:6623–6635...
(2022) demonstrated that atmospheric initialization within an ESM could warm the subsurface of the Southern Ocean before 2014, which provides prerequisites for the abrupt decline of the Antarctic sea ice and recent low Antarctic sea ice extent (SIE). However, the relative effectiveness of ocean and...
Recent ice cover during the austral summer has shrunk most around West Antarctica, which is more vulnerable to the impacts of global warming than the far larger East Antarctica. The record minimum sea ice extent in the Arctic -- 3.4 million square kilometres -- occurred in 2012, with the sec...
Communications Earth & Environment volume 4, Article number: 273 (2023) Cite this article 57k Accesses 3569 Altmetric Metrics details Abstract The spring season of 2022 saw record low sea ice extent in Antarctica that persisted throughout the year. At the beginning of December, the Antarctic sea...
Antarctic sea ice is mostly seasonal. While changes in sea ice seasonality have been observed in recent decades, the lack of process understanding remains a key challenge to interpret these changes. To address this knowledge gap, we investigate the proce