Images related to Happy Anniversary, Envisat

Thwaites Glacier from Sentinel-1A
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Thwaites Glacier from Sentinel-1A

Icebergs surround the edge of Antarctica’s Thwaites Glacier in one of the first images to come from the European Space Agency’s new Sentinel-1A satellite.

Published Apr 22, 2014

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Leisurely January Growth for Arctic Sea Ice
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Leisurely January Growth for Arctic Sea Ice

Sea ice extent for January 2016 was one of the lowest on record since space-based observations began in 1978.

Published Feb 18, 2016

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2019 Arctic Sea Ice Minimum Is Second Lowest
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2019 Arctic Sea Ice Minimum Is Second Lowest

The long-term trend for Arctic sea ice extent has been definitively downward.

Published Sep 23, 2019

Image of the Day Heat Water Snow and Ice Remote Sensing Sea and Lake Ice

A Tale of Two Poles
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A Tale of Two Poles

The 2014 arctic sea ice minimum is the sixth lowest on record, while antarctic sea ice continues to exceed the record maximum extent.

Published Sep 24, 2014

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Thick and Thin Ice in the Weddell Sea
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Thick and Thin Ice in the Weddell Sea

New elevation measurements will give researchers an unprecedented understanding of the thickness of sea ice, which will be used to help improve climate modeling and forecasts.

Published Dec 18, 2018

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Arctic Sea Ice, 2002-2003
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Arctic Sea Ice, 2002-2003

Compiled from passive microwave sensor data, these images show Arctic sea ice extent for September 2002 and March 2003.

Published May 16, 2009

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Arctic Sea Ice Minimum Ties Second Lowest on Record
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Arctic Sea Ice Minimum Ties Second Lowest on Record

Since satellites began monitoring sea ice in 1979, researchers have observed a decline in the average extent of Arctic sea ice in every month of the year.

Published Sep 16, 2016

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Arctic Sea Ice Reaches 2018 Minimum
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Arctic Sea Ice Reaches 2018 Minimum

The ice cap tied for the sixth lowest extent on record, continuing a long-term decline.

Published Sep 28, 2018

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Antarctic Sea Ice Reaches New Maximum Extent
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Antarctic Sea Ice Reaches New Maximum Extent

As the Arctic experienced a new record summer minimum for ice extent, the Antarctic set a new record for maximum winter sea ice.

Published Oct 11, 2012

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Arctic Sea Ice
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Arctic Sea Ice

Sea ice naturally grows and melts each year, but the process has been more extreme in recent years.

Published May 3, 2011

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Ice in the Greenland Sea
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Ice in the Greenland Sea

Sea ice and glacial ice mixes off the northeast coast of the great island.

Published Aug 24, 2014

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Polar Bears Struggle as Sea Ice Declines
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Polar Bears Struggle as Sea Ice Declines

A new study shows that polar bears are spending less time on sea ice, leading them to fast longer, become thinner and have fewer cubs.

Published Feb 4, 2020

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Microwave Sea Ice
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Microwave Sea Ice

NASA's Aqua satellite used microwaves to capture this snapshot of Arctic sea ice on September 3, 2010.

Published Sep 14, 2010

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Sea Ice Ebbs and Flows
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Sea Ice Ebbs and Flows

These satellite-based maps show sea ice concentration in the Arctic and Antarctic during September 2008 and February 2009, the months of the sea ice maximums and minimums in the respective hemispheres.

Published Apr 21, 2009

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