Saturday, 23 May 2015

Antarctic Peninsula in 'dramatic' ice loss

Antarctic Peninsula in 'dramatic' ice loss:
 By Christina Garcés
 Satellites have cause a  dramatic change in the behaviour of glaciers on the Antarctica Peninsula, according to a Bristol University-led study.
The ice streams were  stable up until 2009, since when they have been losing   of 56 billion tonnes of ice a year to the ocean.
Warm waters from the deep sea may be driving the changes, the UK-based team says.
The details of the satellite research are published in Science Magazine.
They include more than 10 years of space observations of a broad swathe of coastline roughly 750km in length, on the south-western sector of the peninsula.
Here there is a multitude of glaciers slipping down mountainous terrain and terminating in the Bellingshausen Sea.
"In  2009/2010, the surface in this part of the southern Antarctic Peninsula started to lower at a really quite dramatic rate, of 4m per year in some places. That's a pretty big signal," said Bristol's Prof Jonathan Bamber.

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