Not the lift we want

The Hindu : Sci-Tech / Energy & Environment : Hot season triggers 100 bn tonnes Greenland ice loss: "According to a latest finding, an unusually hot melting season in 2010 triggered ice loss of 100 billion tonnes in southern Greenland.

Large portions of the island’s bedrock rose an additional quarter of an inch. This is the finding from a network of nearly 50 GPS stations planted along the Greenland coast to measure the bedrock’s natural response to the diminishing weight of ice above it.

Every year as the Greenland Ice Sheet melts, the rocky coast rises, explained Michael Bevis, professor in the School of Earth Sciences at Ohio State University, who led the study.

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."

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