Study shows rapid warming on the West Antarctic Ice Sheet

http://www.eurekalert.org/pub_releases/2012-12/osu-ssr122012.php

Public release date: 23-Dec-2012
Contact: Pam Frost Gorder
Ohio State University

COLUMBUS, Ohio—In a discovery that raises further concerns about the future contribution of Antarctica to sea level rise, a new study finds that the western part of the ice sheet is experiencing nearly twice as much warming as previously thought.

The temperature record from Byrd Station, a scientific outpost in the center of the West Antarctic Ice Sheet (WAIS), demonstrates a marked increase of 4.3 degrees Fahrenheit (2.4 degrees Celsius) in average annual temperature since 1958—that is, three times faster than the average temperature rise around the globe.

This temperature increase is nearly double what previous research has suggested, and reveals—for the first time—warming trends during the summer months of the Southern Hemisphere (December through February), said David Bromwich, professor of geography at Ohio State University and senior research scientist at the Byrd Polar Research Center.

The findings were published online this week in the journal Nature Geoscience.

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