2010 Spike in Greenland Ice Loss Lifted Bedrock, GPS Reveals

[OKIsItJustMe]

http://researchnews.osu.edu/archive/greenlift.htm

2010 SPIKE IN GREENLAND ICE LOSS LIFTED BEDROCK, GPS REVEALS

SAN FRANCISCO – An unusually hot melting season in 2010 accelerated ice loss in southern Greenland by 100 billion tons – and large portions of the island’s bedrock rose an additional quarter of an inch in response.

That’s the finding from a network of nearly 50 GPS stations planted along the Greenland coast to measure the bedrock’s natural response to the ever-diminishing weight of ice above it.

Every year as the Greenland Ice Sheet melts, the rocky coast rises, explained Michael Bevis, Ohio Eminent Scholar in Geodynamics and professor in the School of Earth Sciences at Ohio State University. Some GPS stations around Greenland routinely detect uplift of 15 mm (0.59 inches) or more, year after year. But a temperature spike in 2010 lifted the bedrock a detectably higher amount over a short five-month period – as high as 20 mm (0.79 inches) in some locations.

…

“Pulses of extra melting and uplift imply that we’ll experience pulses of extra sea level rise,” he said. “The process is not really a steady process.”

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[CJvR]

1. Well...

...Sweden is still rising after the last ice age, it was a huge problem a few centuries ago since one of the main sailing lanes into Stockholm was getting noticably shallower. You can still see the marks they carved into the rocks to try and meassure to land rise, now well out of the water. The rising land is also the major source for the few earthquakes we have here.