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Sea Ice Extent News

Articles, resources, and announcements from Sea Ice Extent.

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Sea Ice in the Bering Strait - feature grid

Sea Ice in the Bering Strait

Image captured on 4 February 2018, by the MODIS instrument, aboard NASA's Terra satellite.

Worldview Image of the Week

Sept. 11, 2020

A researcher observes the edge of the Greenland Ice Sheet in 2001. (Image courtesy of Ted Scambos, National Snow and Ice Data Center, University of Colorado at Boulder).

Vanishing Ice

By the end of the 2002 season, the total area of surface melt on the Greenland Ice Sheet had broken all known records.

Feature Article

July 28, 2020

Sample NISE polar projection showing snow cover and sea ice extent for the Northern Hemisphere.

Snow and Ice Extent

Polar research operations depend largely on local weather conditions and the fortitude of both scientists and accompanying research equipment.

Feature Article

July 28, 2020

The image above shows Antarctic sea ice extent from February 2022, using DMSP SSM/I, SSMIS, and Nimbus 7 SMMR.

Phytoplankton and Polynyas

Researchers use averaged ice concentrations to estimate sea ice cover.

Feature Article

July 23, 2020

The image above shows detailed measurements of sea surface height from the ERS-1 altimeter.

Oceanic Convection in the Greenland Sea Odden Region as Interpreted in Satellite Data

SAR and in situ data help model convection-driven ice-edge retreat causing growth of Nordbukta.

Feature Article

July 22, 2020

The image above shows Arctic sea ice from NASA SSM/I in 2011.

At the Edge

Extent of Arctic sea ice is seen as a sensitive indicator of climate change.

Feature Article

July 21, 2020

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