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Climate change: instability spread across the West Antarctic glacier



It has been found that the ice cover has thinned up to 122 meters in some places, and thinning has left the glaciers unstable, say scientists from the University of Leeds in England.

The affected glaciers are unstable because they melt and calves. (ice breaks) reduces their mass faster than can be done with snowfall, and thinning has spread to 24% of West Antarctica since 1992.

The largest ice streams in the region – Pine Island and Thwaites Glaciers – lose ice five times faster than the time measurements began.

A team of researchers from the Center for Observation and Modeling of Poles of the United Kingdom (CPOM), which is based at the University, uses 25 years of satellite observations and climate models to track the evolution of snow and ice in the area

  changes in ice thickness from 1[ads1]992 to 2017

and loss of ice increased sea levels worldwide, added Shepherd.

"Ice Losses from East and West Antarctica." have contributed to a global sea level rise of 4.6 million, he said.

  The largest ice shelf in the world melts 10 times faster than the average

Markus Engdall of the European Space Agency, co-author of the study highlighted the importance of satellite missions in studying our planet.

"Polar regions are hostile environments and are extremely difficult to access from the earth," he said in a statement.

"The view from space is therefore a major tool for tracking the consequences of climate change."

The full study appears in the Geophysical Research Letters and follows from previous studies that highlight the role of ocean water heated by the melting sun of the Antarctic ice shelf

The northwest section of Ross's ice shelf in Antarctica, which is generally approximately the size of Frances it melts 10 times faster than the total average value due to ocean water According to experts at Cambridge University, they are warmed by the sun

"It is believed that the stability of ice shelves is related to their exposure to warm but we found that solar warmed surface water also plays a crucial role in the melting of ice shelves, "said lead study author Craig Stewart of the National Institute of Water and Atmospheric Research in New Zealand.


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