Search results
Results From The WOW.Com Content Network
In contrast, in the Antarctic the sea ice coverage has been increasing although at a lesser rate than the decreases in the Arctic. 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 than 4 decades.
The monthly Sea Ice Index provides a quick look at Antarctic-wide changes in sea ice. It is a source for consistently processed ice extent and concentration images and data values since 1979. Monthly images show sea ice extent with an outline of the 30-year (1981-2010) median extent for that month (magenta line).
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.
Record-low sea ice coverage around Antarctica in 2022 and 2023 co-occurred with substantial subsurface ocean warming, which could be indicative of a change in the mechanisms that govern...
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 usually less than a few meters thick.
Antarctic sea ice is very seasonal and each year some 15 million km 2 of ice grows and melts. Such extensive change in sea-ice cover has huge implications for the exchange of energy,...
Arctic sea ice retreated to near-historic lows in the Northern Hemisphere this summer, likely melting to its minimum extent for the year on Sept.11, 2024, according to researchers at NASA and the National Snow and Ice Data Center (NSIDC). The decline continues the decades-long trend of shrinking and thinning ice cover in the Arctic Ocean.
Antarctic sea ice extent each September from 1979 through 2023. Based on satellite data, extent is the total area where the ice concentration is 15 percent or higher. In the past decade, the September winter maximum has been extremely variable, hitting record and near-record highs as well as near-record lows.
Antarctic sea ice has likely reached its maximum extent for the year, at 17.16 million square kilometers (6.63 million square miles) on September 19, according to scientists at the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder (CU Boulder). The 2024 maximum is the second lowest in the 46-year satellite record.
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 Ocean, likely resulting from global climate change, according to scientists at NASA and the National Snow and Ice Data Center.