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Wed Jul 25, 2012, 06:37 AM

'Heat Dome' Linked to Greenland's Biggest Melt in 30 Years [View all]

Source: NPR

'Heat Dome' Linked To Greenland's Biggest Melt In 30 Years

Published: July 25, 2012
by Mark Memmott

Last week there were the pictures of an iceberg twice the size of Manhattan breaking off Greenland's Petermann Glacier.

Now there are NASA images showing that in four days earlier this month, "Greenland's surface ice cover melted over a larger area than at any time in more than 30 years of satellite observations."

The space agency adds that "nearly the entire ice cover of Greenland, from its thin, low-lying coastal edges to its two-mile-thick center, experienced some degree of melting at its surface, according to measurements from three independent satellites analyzed by NASA and university scientists." The changes happened from July 8 to July 12.

NASA says "this extreme melt event coincided with an unusually strong ridge of warm air, or a heat dome, over Greenland. The ridge was one of a series that has dominated Greenland's weather since the end of May."

Read more: http://www.npr.org/story/157343661


In these illustrations NASA produced from satellite data, the melt in Greenland on July 8 (at left) and July 12 are shown. According to NASA, "the areas classified as 'probable melt' (light pink) correspond to those sites where at least one satellite detected surface melting. The areas classified as 'melt' (dark pink) correspond to sites where two or three satellites detected surface melting."

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Reply 'Heat Dome' Linked to Greenland's Biggest Melt in 30 Years [View all]
Hissyspit Jul 2012 OP
Berlum Jul 2012 #1
Hubert Flottz Jul 2012 #2
dipsydoodle Jul 2012 #3
nanabugg Jul 2012 #4
Overseas Jul 2012 #5
DaveJ Jul 2012 #6
JayhawkSD Jul 2012 #7
Uncle Joe Jul 2012 #8
RainDog Jul 2012 #9
truebrit71 Jul 2012 #11
Uncle Joe Jul 2012 #13
OmahaBlueDog Jul 2012 #10
truebrit71 Jul 2012 #12