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3 dni temu · As darkness extends southward across the Arctic, sea ice has advanced to much of the Russian shoreline, but growth has been particularly slow in the Barents and Kara Seas. In the Antarctic, with the onset of spring, the pace of seasonal sea ice loss has increased.
- Arctic sea ice extent levels off; 2024 minimum set
On September 11, Arctic sea ice likely reached its annual...
- Sea Ice Index Daily and Monthly Image Viewer
The daily Sea Ice Index provides a quick look at Arctic-wide...
- Arctic sea ice extent levels off; 2024 minimum set
30 paź 2024 · See up-to-date satellite observations of the sea ice covers of both the Arctic and the Antarctic, along with comparisons with the historical record. Learn about the sea ice concentration, extent, area, and seasonal cycle, and how they relate to the polar climate system.
24 wrz 2024 · On September 11, Arctic sea ice likely reached its annual minimum extent of 4.28 million square kilometers (1.65 million square miles). The 2024 minimum is the seventh lowest in the nearly 46-year satellite record.
The daily Sea Ice Index provides a quick look at Arctic-wide changes in sea ice. It provides consistently processed daily ice extent and concentration images and data since 1979.
Sea ice extent, defined as the total area covered by ice of at least 15% concentration, is a common metric to assess seasonal and long-term changes in Arctic sea ice. Starting in 1979, there is now a 44-year record of ice extent derived from a consistent series of satellite-borne passive microwave sensors.
Sea Ice Forecasts. These 0-10 day, experimental, sea ice forecasts are produced by the NOAA Physical Sciences Laboratory from a fully coupled ice-ocean-atmosphere model called CAFS. CAFS is run daily and posted online at 2 UTC.
Key Takeaway: Summer Arctic sea ice extent is shrinking by 12.2% per decade due to warmer temperatures. Arctic sea ice reaches its minimum extent (the area in which satellite sensors show individual pixels to be at least 15% covered in ice) each September.
