News & Stories

Across the globe, snow and ice play a vital role in regulating Earth’s climate and providing freshwater resources to people, plants, and animals.

As Earth’s frozen regions change rapidly, NSIDC is committed to growing its research and open access data to better understand these changes. Read about NSIDC research and its contribution to science and policy making. Check out spotlights on how to use NSIDC data, tools, and resources. Learn about how we steward data and collaborate with scientists and organizations across the world to understand how the frozen parts of Earth affect the rest of the planet and impact society.

News and stories

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Melt map
Analysis - Ice Sheets Today
Greenland's surface melting in 2012 was intense, far in excess of any earlier year in the satellite record since 1979. In July 2012, a very unusual weather event occurred. For a few days, 97% of the entire ice sheet indicated surface melting.
Analysis - Sea Ice Today

Arctic sea ice extent for January 2013 was well below average, largely due to extensive open water in the Barents Sea and near Svalbard. The Arctic Oscillation also remained in a primarily negative phase.

Tedesco_Greenland_meltstream_crop_3
Spotlight
The extreme summer melt of 2012 caught many by surprise, and prompted NSIDC to develop a new Web site to help track Greenland’s ice. This site, Greenland Ice Sheet Today, features daily melt images and images showing cumulative melt days on the ice sheet.
megadunes0304_1
Feature Story
Much like waves on the ocean, megadunes form against the wind with scavenged snow rising only a few meters high but running tens of miles long and up to two miles wide. Ted Scambos, along with a team of scientists from around the world, use a combination of satellite remote sensing and field-gathered datasets to map the extent of wind glaze in the East Antarctic Ice Sheet (EAIS) plateau.
Analysis - Sea Ice Today

For the Arctic as a whole, ice growth for November was faster than average. However, the Kara and Barents seas remained largely ice free, contributing to above-average air temperatures in these regions.