Friday, April 16, 2010

Iceland Volcano Satellite | Pictures Eruption of Volcano

Iceland Volcano Satellite | Pictures Eruption of Volcano on Hot Topics --- Iceland Volcano Satellite | Pictures Eruption of Volcano. Global Warming causing Iceland Volcano Eruption. Because of this eruption, air travel is quickly becoming more problematic on The Continent, with the possibility now that Barack Obama won't be able to attend the state funeral in Warsaw- he's probably looking for an excuse anyway.

The benchmark cooling event of the past 20 years was in 1991, when Mount Pinatubo erupted in the Philippines. It cooled Earth's surface by 0.5 degrees Celsius (0.9 degrees Fahrenheit) over the next year, enough to offset the impact of greenhouse gases from 1991 to 1993. A smaller cooling episode occurred in 1980, when Mount St. Helens in the U.S. state of Washington blew its top, an event that while impressive disgorged only a tenth of the material of Pinatubo.

Eruption began at 23:52UTC on 20 March 2010 at the Eyjafjallajökull volcanic system (also known as Eyjafjöll volcano). A red cloud appeared above the volcano, which lightened up the sky above the eruptive fissure. “The eruption was preceded with intense seismicity and high rates of deformation in the weeks before the eruption, in association with magma recharging of the volcano.

Immediately prior to the eruption the depth of seismicity had become shallow, but was not significantly enhanced from what it had been in the previous weeks. Deformation was occurring at rates of up to a centimetre a day since March 4 at continuous GPS sites installed within 12 km from the eruptive site.” IESUI reported.

The scientists said the Eyjafjallajokull eruption could have a regional effect on Europe's climate — but only provided it went on for a matter of years. "Back in the 1780s, a large eruption in southern Iceland went on for a couple of years and generated a lot of sulphur," said Macpherson.

"It caused a smog that was really rather nasty, there was a failure of crops as a result of acid rain, the air quality was really very poor. But that took the better part of two years to cause that kind of effect and certainly we are not looking at anything like that right now."

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