Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
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Rare and Shrinking Glaciers in the Tropics
Like tropical glaciers elsewhere in the world, the glaciers...

Approximately 1,200 radar scenes from Sentinel-1A’s wide-swath mode were used to produce this map of Greenland ice-sheet velocity, which shows dynamic glacier outlets around the Greenland coast. (Credit: Contains modified Copernicus Sentinel data (2015)/ENVEO/ESA CCI/FFG)

Approximately 1,200 radar scenes from Sentinel-1A’s wide-swath mode were used to produce this map of Greenland ice-sheet velocity, which shows dynamic glacier outlets around the Greenland coast. (Credit: Contains modified Copernicus Sentinel data (2015)/ENVEO/ESA CCI/FFG)

Scientists studying Greenland’s glaciers used satellite observations and aerial survey measurements from a wide variety of space agencies, including ESA, the Canadian Space Agency, NASA, the German Aerospace Center, the Japan Aerospace Exploration Agency and Italy’s ASI.

And according to a paper they recently published in Science, one of Greenland’s glaciers is losing 5 trillion (5,000,000,000,000) kilograms of ice a year to the ocean. It’s estimated that the entire Zachariae Isstrom glacier in northeast Greenland holds enough water to raise global sea levels by more than 46 centimeters.

“The glacier is now breaking up and calving high volumes of icebergs into the ocean, which will result in rising sea levels for decades to come,” notes Jeremie Mouginot, from the University of California Irvine and lead author of the paper.

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