Japan's Tsunami Caused Antarctica Iceberg

[PrisonerOfHope]

Japan's Tsunami Caused Antarctica Iceberg Twice the Size of Manhattan
By Meagan Johnson | Christian Post Contributor

Scientists have long suspected icebergs to be a link with earthquakes and now a paper published online today in the Journal of Glaciology, marks the first direct observation of the connection between tsunamis and icebergs.
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Kelly Burnt, a cryosphere specialist at Goddard Space Flight Center, Greenbelt, Md., and colleagues were able to link the calving of icebergs from the Sulzberger Ice Shelf in Antarctica to the Tohoku Tsunami, which originated of the coast of Japan from an earthquake in March 2011, reported NASA.

Icebergs can be caused by several things; therefore, when the Tohoku Tsunami occurred in the Pacific Ocean this spring, Burnt and other experts used multiple satellite images to monitor southern polar seas.

From their observations, Burnt, Emile Okal of the Northwestern University and Douglas MacAyeal of the University of Chicago noticed that new icebergs began to float after the sea swell from the tsunami reached Antarctica.

Roughly 18 hours after the earthquake off the coast of Japan hit, the waves from the Tohoku Tsunami rushed towards an ice shelf in Antarctica that is 8,000 miles away. The Sulzberger ice shelf is 260 feet thick and in nearly 50 years has not shifted-that is, not until a 1-foot high wave struck the shelf breaking off massive pieces of ice.

Burnt took a closer look using a synthetic aperture radar data which can penetrate clouds. She discovered images of two moderate-sized icebergs.

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According to the report, one of them measured four by six miles in surface area, which is almost the size of Manhattan.

“In the past we’ve had calving events where we’ve looked for the source. It’s a reverse scenario-- we see a calving and we go looking for a source,” Brunt said. “We knew right away this was one of the biggest events in recent history-- we knew there would be enough swell. And this time we had a source.”

The images proved that seismic events could definitely lead to other environmental events across the globe.

“In September 1868, Chilean naval officers reported an unseasonal presence of large icebergs in the southernmost Pacific Ocean, and it was later speculated that they may have calved during the great Arica earthquake and tsunami a month earlier,” Okal said. “We know now that this is a most probable scenario.”

www.christianpost.com/news/japans-tsunami-caused-antarctica-iceberg-twice-the-size-of-manhattan-53582/

[baydoll]

I'm surprise the lefties didn't blame this on Global Warming.

Oh wait....they already did.

If a tsunami hits Japan, could Antarctica be affected?

For the first time, scientists seem to have linked a catastrophic event over a hemisphere away with the creation of icebergs from the coast of Antarctica. According to NASA, Kelly Brunt, a cryosphere specialist at the Goddard Space Flight Center in Greenbelt, Maryland, and her colleagues, were able to relate the two occurrences directly.

Their findings will be published in the Journal of Glaciology later this month.

After the tsunami this March in Japan, Brunt and her team immediately looked South, according to NASA. What they found was the formation of new icebergs shortly after the tsunami waves reached the continent.

The break-off apparently occurred about 18 hours after the tsunami struck the Japanese coast.

According to LiveScience, there have been reports of icebergs breaking off, or "calving" before, such as when an earthquake hit New Zealand this February, but this is the first direct observation.

"In the past we've had calving events where we've looked for the source. It's a reverse scenario - we see a calving and we go looking for a source," Brunt told NASA. "We knew right away this was one of the biggest events in recent history - we knew there would be enough swell. And this time we had a source."

In April, HuffPost blogger David Kroodsma wrote about a study in the Annals of Glaciology which reported that when a large iceberg capsizes and flips, it can create a small tsunami (up to one percent the height of the iceberg.)

Nature speculated whether "'glacial tsunamis' be added to the list of future global-warming hazards."

According to the Associated Press, global warming has been reported as a reason for increased ice melting in Greenland and parts of Antarctica.


www.huffingtonpost.com/2011/08/08/japan-tsunami-icebergs-antarctica_n_921659.html