Wednesday, 10 July 2013

Greenland Ice Sheet Growing: Peer reviewed study

Another nail in the Alarmists' coffins. A paper published by the Journal of Glaciology by researcher Kenneth Jezek (Link"the southern half of Greenland was thickening by ~0.20 ± 0.06 m/year, with a possible increase in thickening rate to 0.28 ± 0.02 m/year for the later part of the record."

CO2 Science report (LINK)

Jezek, K.C. 2012. Surface elevation and velocity changes on the south-central Greenland ice sheet: 1980-2011. Journal of Glaciology 58: 1201-1211.

What was done
Bringing still more data to bear upon the issue, Jezek extended through 2011 "an ice-sheet elevation and surface velocity record across three measurement networks established in south-central Greenland by The Ohio State University in 1980/81," where "surface parameters are derived from repeat GPS in situ observations," and where elevations are "measured by airborne laser altimetry and by the Ice, Cloud and land Elevation Satellite (ICESat)."

What was learned
The Ohio State University (USA) researcher reports that the most recent data show that thinning rates areslowing at several sites just east of the divide, and that the elevation at the divide continues to increase.

What it means
"These results," in the words of Jezek, "show that the Greenland ice sheet is changing from terminus to divide," and that "measurement strategies designed to predict future changes and to estimate volumetric changes across the ice sheet need to appropriately cover the entirety of the ice sheet [italics added]."

Read More at Co2 Science (link)

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