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The Antarctic sea ice cover is highly seasonal, with very little ice in the austral summer, expanding to an area roughly equal to that of Antarctica in winter.It peaks (~18 × 10^6 km 2) during September (comparable to the surface area of Pluto), which marks the end of austral winter, and retreats to a minimum (~3 × 10^6 km 2) in February.
Antarctic sea ice extent was about 18% higher on Dec. 21, 2024, than on that date in 2016, according to the National Snow and Ice Data Center Charctic Interactive Sea Ice Graph − which reports ...
This heat wave lead to some regions of Antarctica facing temperatures that were up to 22 °C (39.6 °F) higher than normal and caused significantly reduced levels of sea ice, leading to extensive research on the event by a major global research project consisting of 54 members, who described the complexity of the heat wave's cause as "head ...
[1] [2] [3] Much of the world's sea ice is enclosed within the polar ice packs in the Earth's polar regions: the Arctic ice pack of the Arctic Ocean and the Antarctic ice pack of the Southern Ocean. Polar packs undergo a significant yearly cycling in surface extent, a natural process upon which depends the Arctic ecology , including the ocean's ...
A March 10 post on the social media platform X shows two National Snow & Ice Data Center maps depicting Antarctic sea ice extent — the area of the sea covered by ice. One is dated March 9, 1997 ...
‘Lower sea ice extent means that ocean waves will pound the coast of the giant ice sheet, further reducing ice shelves around Antarctica’ Antarctic sea ice hits new record low in 2023 Skip to ...
To try to extend the historical record of Southern Hemisphere sea ice extent further back in time, scientists have been investigating various proxies for sea ice extent. One is records kept by Antarctic whalers that document the location of all whales caught and relate to sea ice observations directly.
Antarctic sea ice extent peaked this year on Sept. 10, when it covered 16.96 million square kilometers (6.55 million square miles), the lowest winter maximum since satellite records began in 1979 ...