Scientific Data for Research






Ice Sheets


Sea Ice


Ice Shelves


Soil Moisture


Frozen Ground

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Advancing knowledge of Earth's frozen regions

NSIDC manages and distributes scientific data, creates tools for data access, supports data users, performs scientific research, and educates the public about the cryosphere.

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Arctic Sea Ice News & Analysis

Scientific analysis of Arctic sea ice conditions plus daily images.


Working together to understand the changing Arctic system.

Satellite Observations of the Arctic

Mapping decades of NASA scientific data.


NASA Earth science data on snow, ice, cryosphere, and climate.
Visit the Cryosphere

Visit the Cryosphere

Facts, photos and educational resources about Earth's frozen regions.
Greenland Today

Greenland Today

Daily surface melt images from NASA data, and scientific analysis.


20 March 2019

Arctic sea ice has likely reached its maximum extent for the year, at 14.78 million square kilometers (5.71 million square miles) on March 13, 2019, according to scientists at the National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder. The 2019 maximum is effectively tied with the 2007 maximum at seventh lowest in the 40-year satellite record.

14 March 2019

Twila Moon answers questions about why changes in the Arctic should concern the entire world, not just those living in the Arctic.

27 February 2019

A NSIDC project, the Exchange for Local Observations and Knowledge of the Arctic (ELOKA), partnered with SnowChange Cooperative to create the cyberinfrastructure for the first online cultural atlas of Indigenous Knowledge from Siberia.

21 February 2019

Researchers probe remote Alaskan permafrost to see where it thaws, and how deep the thaw goes.

12 February 2019

The Arctic is warming twice as fast as the rest of the world, and sea ice loss plays a large role in this. While warmer conditions lead to more melting of sea ice, the loss of sea ice also makes it warmer - a vicious feedback cycle.


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The latest in Arctic sea ice news

2 May 2019

April reached a new record Arctic low sea ice extent. Sea ice loss was rapid in the beginning of the month because of declines in the Sea of Okhotsk. The rate of ice loss slowed after early April... read more

3 April 2019

Arctic sea ice extent appears to have reached its maximum extent on March 13, marking the beginning of the sea ice melt season. Since the maximum, sea ice extent has been tracking at record low... read more