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“Underwater volcanism is also sublimating portions of the Antarctica ice mass from underneath. In 2004, a research team led by Eugene Domack, aboard the research vessel Lawrence M. Gould, made a remarkable discovery of a massive underwater volcano off the coast of Antarctica using a deep water submersible vehicle equipped with a cadre of sensors and video cameras. The volcano was 2300 feet (700 meters) tall. The British team findings confirmed the volcano was still active and was contributing to the melting of the ice sheet from beneath the Antarctica land mass
April 7, 2012 –
ANTARTICA - Mount Sidley, the highest volcano in Antarctica, may have a lot of company lurking out of sight. Scientists are using seismographs to hunt for hidden volcanoes in Antarctica. Scientists have used radar and other imaging technology to uncover some astounding finds under the East Antarctic Ice Sheet: A vast mountain range that rivals the Alps, and Lake Vostok, one of Earth’s largest lakes. Finally, seismographs can reveal hidden sources of seismic activity — little earthquakes that could be the signatures of active volcanoes hidden under the ice. “It’s really the first time we’re able to look at the interior structure of the mantle,” said Andrew Lloyd, a WSLU Ph.D. student who traveled hundreds of miles by snowmobile to help retrieve some of the seismographs — and the reams of data they recorded. “It will enable us to say something really definitive about the tectonics and geology of the region, which is something nobody has been able to do before,” Lloyd said. Wiens said that the data are already revealing a tantalizing picture of what is going on beneath West Antarctica, a place that is, in the words of one scientist, “hemorrhaging ice. We do see these big variations in the temperature in the mantle across parts of Antarctica that will have a big effect on the ice sheet,” Wiens said. However, he added, many months of work lie ahead, and it will be some time before scientists are ready to announce to the world what lies beneath the ice.
Originally posted by timetothink
I can't wait to see how this gets blamed on humans....
The researchers concluded that 20 of the 54 ice shelves studied are being melted by warm ocean currents. Most of these are in West Antarctica, where inland glaciers flowing down to the coast and feeding into these thinning ice shelves have accelerated, draining more ice into the sea and contributing to sea-level rise. This ocean-driven thinning is responsible for the most widespread and rapid ice losses in West Antarctica, and for the majority of Antarctic ice sheet loss during the study period.
"We can lose an awful lot of ice to the sea without ever having summers warm enough to make the snow on top of the glaciers melt," said the study's lead author Hamish Pritchard of the British Antarctic Survey in Cambridge, United Kingdom. "The oceans can do all the work from below."
"Studies have shown Antarctic winds have changed because of changes in climate," Pritchard said. "This has affected the strength and direction of ocean currents. As a result warm water is funnelled beneath the floating ice. These studies and our new results suggest Antarctica's glaciers are responding rapidly to a changing climate."
An international team of scientists used a combination of satellite measurements and models to differentiate between the two known causes of melting ice shelves: warm ocean currents thawing the underbelly of the floating extensions of ice sheets and warm air melting them from above.
"This study demonstrates the urgent need for ICESat-2 to get into space," said Jay Zwally, ICESat project scientist at NASA's Goddard Space Flight Center in Greenbelt, Md. "We have limited information on the changes in polar regions caused by climate change. Nothing can look at these changes like satellite measurements do."
Originally posted by stanguilles7
Originally posted by snarky412
Long after we're gone, the Earth will still be here waiting for the next inhabitants to make a go at it. Hopefully like in about a million years from now. HA!!
So you despise humanity?
You hate people?
Originally posted by Doalrite
Originally posted by stanguilles7
Originally posted by snarky412
Long after we're gone, the Earth will still be here waiting for the next inhabitants to make a go at it. Hopefully like in about a million years from now. HA!!
So you despise humanity?
You hate people?
I do.. we are a sick despicable race... if we were spartans maybe we would have honor and respect and evolve into something awesome... however we kill our best and brightest and the weak and corrupt are the ones that breed and run the countries... we are living in the dark ages... the golden age will come when we fix this system.. and fixing it would involve culture change.. which will never happen without great castrophy and deathedit on 26-4-2012 by Doalrite because: (no reason given)
Originally posted by RoyalBlue
reply to post by tracehd1
You're right. The melting of ice caps could have NOTHING to do with our constant drilling for oils in the deep oceans all over the world. I mean the release of gas and spill of oil wouldn't add heat to the ocean, would it? And fracking from drilling in the oceans (on land it's shown to cause earthquakes), surely it wouldn't cause any EQ's in the ocean floor, or help disturb any underwater volcanoes, would it, or allow any methane cracks to open, allowing methane to creep up?
And all the radiation that has been dumped, leaked, or fallen into the ocean since all the nuclear testing began in the 1950's, all the nuclear experiments over or near the oceans all over the world, everything up to and including Fukushima which itself continues to dump and "leak" untold amounts of radioactive contamination into the ocean on an unending daily basis? Nah, those little "eternal fire" particles that can never be doused or put out, surely those aren't circulating on the ocean floors adding heat to water, or building under (around) ice caps helping them to melt?
Please, humans have nothing to do with the warmer waters and melting ice caps (sarcasm), (sarcasm), and yes, more (sarcasm).
edit on 27-4-2012 by RoyalBlue because: (no reason given)edit on 27-4-2012 by RoyalBlue because: (no reason given)