Welcome to Skywatch Media News- Sat, 17 Mar 2018

 GLOBAL NEWS-As it Happens

English Dutch French German Italian Russian Spanish

Environment monitoring satellites have captured the rapid increase in speed of an Arctic glacier as it starts moving 13 times faster than before.

The Negribreen glacier on Norway’s Spitsbergen island has seen a dramatic increase in ice surface speed over the past year with the pace jumping from one meter a day to a staggering 13 meters every 24 hours.

This stunning surge in speed has been captured by the European Space Agency’s (ESA) Sentinel-1 satellites which are providing round the clock radar imaging of land and ocean for the space agency’s Copernicus program.

“When a glacier ‘surges’ a large amount of ice flows to the end in an unusually short time,” the ESA explain.

The reasons behind these surges are not fully understood, but they are believed to be caused by increases in the amount of heat or water in the lowest layers of the glaciers.

A team of scientists from the ESA’s Climate Change Initiative are using satellite radar and optical coverage to map glaciers at different times and determine how they are changing.

Satellites allow them much greater ability to monitor the giant sheets of glaciers as they can see through clouds and other inclement weather.

“Sentinel-1 provides us with a near-realtime overview of glacier flow across the Arctic, remarkably augmenting our capacity to capture the evolution of glacier surges,” Tazio Strozzi, who is working on the project, said.


News in Pictures

Polar stratospheric clouds, also known as nacreous clouds (or mother of pearl, due to its iridescence), are clouds in the winter polar stratosphere at altitudes of 15,000-25,000 meters (49,000-82,000 ft). Usually the clouds only form over the poles during winter because the air in the upper stratosphere needs to be at least -78C.

Spectacular polar stratospheric clouds captured over Peru

Get Daily Updates

Skymed Newsletter
Subscribe Now!

Get Your Free Copy!

Website Visitors

This week2942
This month12433

17 March 2018

Who Is Online

Guests : 81 guests online
Go to top