The Antarctic ice sheet is a continental glacier covering 98% of the Antarctic continent, with an area of 14 million square kilometres (5.4 million square miles) and an average thickness of …

2025年2月4日 · Shown below are up-to-date satellite observations of the sea ice covers of both the Arctic and the Antarctic, along with comparisons with the historical satellite record of more …

2025年2月3日 · Obtain daily sea ice extent values, ranges, and median values for the Arctic or the Antarctic. Analyze monthly-averaged or daily sea ice extent and concentration via interactive …

2024年3月25日 · In the waters around Antarctica, ice coverage shrank to near-historic lows for the third year in a row. The recurring loss hints at a long-term shift in conditions in the Southern …

Based on U.S. National Ice Center's Antarctic daily and weekly analyses, various ice charts are produced to represent ice conditions in a graphical format. Ice conditions are based on ice …

2020年2月18日 · Antarctic sea ice peaks in September (the end of Southern Hemisphere winter) and usually retreats to a minimum in February. These image pairs show the average …

2023年3月14日 · Antarctic sea ice concentration in September 2022, the month of the maximum winter extent in the Southern Hemisphere. Maximum extent in 2022 was below the 1981–2010 …

2024年10月8日 · The sea ice in the Southern Ocean around Antarctica sea ice probably reached its winter maximum extent on September 19, 2024. It was second smallest of the satellite …

On February 20, 2024, sea ice surrounding Antarctica reached an annual minimum extent of 1.99 million square kilometers (768,000 square miles), tying for second lowest minimum with 2022 …

Antarctic sea ice is the sea ice of the Southern Ocean. It extends from the far north in the winter and retreats to almost the coastline every summer. [ 1 ] Sea ice is frozen seawater that is …