08 Aug '11, 9pm

Antarctic Icebergs Chipped off by Tsunami [image] #NASA

Antarctic Icebergs Chipped off by Tsunami [image] #NASA

Using satellite radar data, scientists recently observed the calving of several large icebergs from the Sulzberger Ice Shelf along the Antarctic coast as a result of the March 2011 tsunami half a world away in Japan. Scientists have long speculated that ocean waves could cause pieces of an ice shelf to flex and break, but this is the first time researchers have observed a tsunami affecting ice cover. The images above were acquired by the Advanced Synthetic Aperture Radar (ASAR) on the European Space Agency’s Envisat satellite on March 11 and 16, 2011. The top image was taken just before the icebergs began to separate from the Sulzberger Ice Shelf, while the bottom image shows the chunks of ice well out to sea just five days later. This time-lapse series of images shows the progression of the ice breakup. In each radar image—which allows researchers to see through cloud cov...

Full article: http://earthobservatory.nasa.gov/NaturalHazards/view.php?...

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Japan's Tsunami Gave Birth to Faraway Icebergs:

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green.blogs.nytimes.com 10 Aug '11, 9pm

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green.blogs.nytimes.com 11 Aug '11, 12am

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environmentalleader.com 15 Aug '11, 10am

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mnn.com 10 Aug '11, 2pm

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Puyehue-Cordón Caulle [image] #NASA

earthobservatory.nasa.gov 19 Aug '11, 10pm

Puyehue Cordón Caulle Volcanic Complex emitted a pale plume of gas and ash on August 18, 2011. Activity started on June 4,...

Puyehue-Cordón Caulle [image] #NASA

Puyehue-Cordón Caulle [image] #NASA

earthobservatory.nasa.gov 18 Aug '11, 4pm

For two and a half months Chile’s Puyehue Cordón Caulle Volcanic Complex has erupted nearly continuously. Since the violen...