2025年1月6日 · Average Arctic sea ice extent for December was the lowest in the satellite record, in considerable part due to delayed ice growth in Hudson Bay and low extent in the northern Barents Sea. Antarctic sea ice has declined at a slower-than-normal pace since mid-November, erasing the record and near-record low extents of October and November and ...

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.

Visualize sea ice extent (area of ocean with at least 15 percent sea ice concentration) data for the Arctic and Antarctic. View and compare sea ice extent data for any year or any combination of years from 1979 to present (including near-real-time daily data).

2024年12月4日 · Arctic sea ice cover retreated rapidly in July 2024, pushing the daily ice extent at the end of the month to the third lowest in the 46-year satellite record.

Explore Snapshot of the Arctic visualizations to track current conditions in Arctic sea ice and Arctic temperatures, and to follow long-term trends. This page was assembled by the Sea Ice Prediction Network for easy access to up-to-date information about the Arctic.

2024年7月3日 · Data from satellite radar altimetry suggest the ice cover along the eastern side of the Arctic may be thicker this spring relative to the 2011 to 2023 average, but thinner than average in the western Arctic and north of Greenland (Figure 6a).

4 天之前 · Ice Sheets Today offers the latest satellite data and scientific analyses on surface melting of the Greenland Ice Sheet in the Northern Hemisphere and Antarctic Ice Sheet in the Southern Hemisphere. Surface melt on each ice sheet results from a combination of daily weather conditions and the amount of solar energy absorbed by its snow and ice.

2024年9月24日 · 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.

Although sea ice moves around the Arctic basin, it tends to stay in the cold Arctic waters. Pieces of sea ice, known as floes, are more prone to converge, or bump into each other, and pile up into thick ridges.

2024年11月4日 · Average Arctic sea ice extent for the month of October was 5.94 million square kilometers (2.29 million square miles), fourth lowest in the 46-year-satellite record and 610,000 square kilometers (236,000 square miles) higher than 2020, the record low extent for the month (Figures 1a and 1b).