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).

2025年1月29日 · Ice Sheets Today: Featured Antarctic Ice Sheet Melt Images The left map shows the total melt days for the Antarctic Ice Sheet as of January 1, 2025. The middle map is a close up of the Antarctic Peninsula through the same time frame.

2024年3月8日 · These images, created from GRACE and GRACE-FO data, show changes in Antarctic ice mass since 2002. Orange and red shades indicate areas that lost ice mass, while light blue shades indicate areas that gained ice mass.

The Antarctic Ice Sheet extends almost 14 million square kilometers (5.4 million square miles), roughly the area of the contiguous United States and Mexico combined. It also contains about 30 million cubic kilometers (7.2 million cubic miles) of ice.

2024年2月8日 · Evidence from a 2,000-foot-long ice core reveals that the West Antarctic Ice Sheet shrank suddenly and dramatically around 8,000 years ago, according to new research — providing an alarming...

2023年11月10日 · Antarctica's ice sheet is between 1.6 and 6.4 kilometers (one and four miles) thick. An ice sheet is a mass of glacial ice more than 50,000 square kilometers (19,000 square miles). Ice sheets contain about 99% of the fresh water on Earth, and are sometimes called continental glaciers.

2024年6月25日 · The Antarctic ice sheet is melting in a new, worrying way not taken into account by current models of future sea level rise, according to a new study.

Ice Sheets 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.

2023年8月23日 · 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.

90% of the world’s ice (26.6 million cubic kilometres) and approximately 91% of its fresh water, is locked up in the Antarctic ice sheet. If all the ice were to melt, the level of the world’s oceans would rise by nearly 60 m.