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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 over 2 kilometres (1.2 mi). It is the largest of Earth's two current ice sheets, containing 26.5 million cubic kilometres (6,400,000 cubic miles) of ice ...
Key Takeaway: Antarctica is losing ice mass (melting) at an average rate of about 150 billion tons per year, and Greenland is losing about 270 billion tons per year, adding to sea level rise. Data from NASA's GRACE and GRACE Follow-On satellites show that the land ice sheets in both Antarctica (upper chart) and Greenland (lower chart) have been ...
Featured Antarctic Ice Sheet Melt Images. The left map shows the total melt days for the Antarctic Ice Sheet from November 1 to February 15, 2024, with an up-close map of the Antarctic Peninsula to its right. The graph shows daily melt extent as a percent of the ice sheet for the 2023 to 2024 melt season through February 15, 2024, with the ...
Nov 10, 2023 · Today, there are only two ice sheets in the world: the Antarctic ice sheet and the Greenland ice sheet. During the last glacial period, however, much of Earth was covered by ice sheets. How Ice Sheets Form Ice sheets formed like other glaciers. Snow accumulates year after year, then melts. The slightly melted snow gets harder and compresses.
Aug 23, 2023 · August 23, 2023. The Antarctic ice sheet's mass has changed over the last decades. Research based on satellite data indicates that between 2002 and 2023, Antarctica shed an average of 150 billion metric tons of ice per year, adding to global sea level rise.
Sep 23, 2020 · 12 July 2022. 14 September 2022. 31 March 2021. Main. The Antarctic Ice Sheet comprises an ice mass equivalent to 58 m of global sea-level rise 1. Its future evolution and the associated...
Mar 8, 2024 · Research based on observations from the Gravity Recovery and Climate Experiment (GRACE) satellites (2002-2017) and GRACE Follow-On (since 2018 - ) indicates that between 2002 and 2023, Antarctica shed approximately 150 gigatons of ice per year, causing global sea level to rise by 0.4 millimeters per year.
