Friday, April 24, 2015 2:40:16 AM
Fed up with abuse MOMENTO EXACTO ERUPCION DEL VOLCAN CABULCO EN CHILE (100 MUERTOS) 23/04/2015 APOCALIPSIS E
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Chile sees Cabulco volcano erupt in more than 40 years
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Spectacular Time-Lapse Footage Captures Chile's Calbuco Volcano Erupting
Offbeat | Written by Amrita Kohli | Updated: April 23, 2015 13:25
Image Courtesy: Screengrab taken from YouTube video uploaded by @Rodrigo Barrera
An erupting volcano ought to be a terrifying sight but when it's filmed as beautifully as this time-lapse video, it's nothing less than spectacular. The Calbuco volcano in Chile, dormant for 43 years, erupted on Wednesday evening and stunning footage captures the huge clouds of smoke and ash that mushroom into the sky.
The 22-second video, posted on YouTube by Rodgrrigo Barrera yesterday, shows a huge plume of ash towering over the 2,000 meter (6,500 foot) volcano, transforming into a huge white canopy of smoke that shrouds the landscape. The time-lapse has also managed to capture the volcanic lightning in the sky.
The eruption has caused large scale evacuations and flight cancellations in the areas around. Authorities have also declared a state of emergency in the affected parts, according to Agence France-Presse.
The video has already been viewed about two lakh times since it was posted. Watch it here:
Story First Published: April 23, 2015 13:25 IST
http://www.ndtv.com/offbeat/spectacular-time-lapse-footage-captures-chiles-calbuco-volcano-erupting-757509
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Volcanic ash unlikely to cool planet
Friday, 16 April 2010 Darren Osborne
ABC
To have a significant global cooling effect the ash cloud would have to reach the stratosphere, say experts (Source: Olafur Eggertsson/Reuters)
Related Stories
Volcanic blasts kicked off modern ice ages, Science Online, 22 Jun 2009
http://www.abc.net.au/science/articles/2009/06/22/2604534.htm
Volcanoes to cool climate? Get real, say experts, Science Online, 20 Aug 2007
http://www.abc.net.au/science/articles/2007/08/20/2009531.htm
Volcano eruptions deplete ozone, Science Online, 06 Mar 2002
http://www.abc.net.au/science/articles/2002/03/06/496920.htm
The volcanic ash cloud that exploded from an Icelandic volcano this week isn't expected to have an impact on global temperatures, says an Australian climatologist.
The volcano, located under the Eyjafjallajokull glacier, erupted on Thursday producing a 10-kilometre high plume of ash and rock that has extended across most of northern Europe.
The debris has caused the closure of airports in the UK, Norway, Denmark, Belgium and Sweden, and produced spectacular sunsets in the region.
While the particles may have an effect on local temperatures in the short-term, experts don't believe it will have the same impact as the Pinatubo eruption two decades earlier.
In June 1991, Mount Pinatubo, an active volcano in the Philippines, launched ten cubic kilometres of material into the atmosphere.
Particles from the eruption entered the Earth's stratosphere resulting in a 10% reduction in sunlight reaching the Earth's surface, and a 0.4°C drop in global average temperatures.
Too low to make an impact
Dr Blair Trewin of the National Climate Centre .. http://www.bom.gov.au/climate/ .. in Melbourne says, in its current form the ash cloud is unlikely to have the same impact on global temperatures.
"For a volcano to have a significant global cooling effect it has to get its ash up into the stratosphere," he says. "If it doesn't, the ash will get rained out fairly quickly."
Even if the material reaches the stratosphere, Trewin believes the volcano's location will result in the ash staying in the northern hemisphere.
"Once you're in the stratosphere the winds tend to flow out from the equator to the poles," he says. "So if you get a big eruption in the tropics the winds in the stratosphere will tend to spread out material over the whole globe.
"Whereas if it happens in the polar regions the stuff tends to get stuck - it doesn't spread up to lower latitudes."
But Trewin says the volcanic ash cloud may have an impact locally.
"When Mount St Helens erupted in 1980 it had no significant global impacts, but in the days immediately after the eruption you had cooling of daylight temperatures by 10°C or more in some parts of the northwestern United States."
Dr Jeff Masters, Director of Meteorology at Weather Underground .. http://www.wunderground.com/blog/ .. says the eruption isn't expected to have a significant impact on weather patterns in the northern hemisphere.
"However, the ash could bring spectacular sunsets to Europe over the next week, and to North America by sometime next week, as the jet stream wraps the ash cloud eastwards across the northern hemisphere."
http://www.abc.net.au/science/articles/2010/04/16/2875041.htm
---
Chile sees Cabulco volcano erupt in more than 40 years
---
Spectacular Time-Lapse Footage Captures Chile's Calbuco Volcano Erupting
Offbeat | Written by Amrita Kohli | Updated: April 23, 2015 13:25
Image Courtesy: Screengrab taken from YouTube video uploaded by @Rodrigo Barrera
An erupting volcano ought to be a terrifying sight but when it's filmed as beautifully as this time-lapse video, it's nothing less than spectacular. The Calbuco volcano in Chile, dormant for 43 years, erupted on Wednesday evening and stunning footage captures the huge clouds of smoke and ash that mushroom into the sky.
The 22-second video, posted on YouTube by Rodgrrigo Barrera yesterday, shows a huge plume of ash towering over the 2,000 meter (6,500 foot) volcano, transforming into a huge white canopy of smoke that shrouds the landscape. The time-lapse has also managed to capture the volcanic lightning in the sky.
The eruption has caused large scale evacuations and flight cancellations in the areas around. Authorities have also declared a state of emergency in the affected parts, according to Agence France-Presse.
The video has already been viewed about two lakh times since it was posted. Watch it here:
Story First Published: April 23, 2015 13:25 IST
http://www.ndtv.com/offbeat/spectacular-time-lapse-footage-captures-chiles-calbuco-volcano-erupting-757509
---
Volcanic ash unlikely to cool planet
Friday, 16 April 2010 Darren Osborne
ABC
To have a significant global cooling effect the ash cloud would have to reach the stratosphere, say experts (Source: Olafur Eggertsson/Reuters)
Related Stories
Volcanic blasts kicked off modern ice ages, Science Online, 22 Jun 2009
http://www.abc.net.au/science/articles/2009/06/22/2604534.htm
Volcanoes to cool climate? Get real, say experts, Science Online, 20 Aug 2007
http://www.abc.net.au/science/articles/2007/08/20/2009531.htm
Volcano eruptions deplete ozone, Science Online, 06 Mar 2002
http://www.abc.net.au/science/articles/2002/03/06/496920.htm
The volcanic ash cloud that exploded from an Icelandic volcano this week isn't expected to have an impact on global temperatures, says an Australian climatologist.
The volcano, located under the Eyjafjallajokull glacier, erupted on Thursday producing a 10-kilometre high plume of ash and rock that has extended across most of northern Europe.
The debris has caused the closure of airports in the UK, Norway, Denmark, Belgium and Sweden, and produced spectacular sunsets in the region.
While the particles may have an effect on local temperatures in the short-term, experts don't believe it will have the same impact as the Pinatubo eruption two decades earlier.
In June 1991, Mount Pinatubo, an active volcano in the Philippines, launched ten cubic kilometres of material into the atmosphere.
Particles from the eruption entered the Earth's stratosphere resulting in a 10% reduction in sunlight reaching the Earth's surface, and a 0.4°C drop in global average temperatures.
Too low to make an impact
Dr Blair Trewin of the National Climate Centre .. http://www.bom.gov.au/climate/ .. in Melbourne says, in its current form the ash cloud is unlikely to have the same impact on global temperatures.
"For a volcano to have a significant global cooling effect it has to get its ash up into the stratosphere," he says. "If it doesn't, the ash will get rained out fairly quickly."
Even if the material reaches the stratosphere, Trewin believes the volcano's location will result in the ash staying in the northern hemisphere.
"Once you're in the stratosphere the winds tend to flow out from the equator to the poles," he says. "So if you get a big eruption in the tropics the winds in the stratosphere will tend to spread out material over the whole globe.
"Whereas if it happens in the polar regions the stuff tends to get stuck - it doesn't spread up to lower latitudes."
But Trewin says the volcanic ash cloud may have an impact locally.
"When Mount St Helens erupted in 1980 it had no significant global impacts, but in the days immediately after the eruption you had cooling of daylight temperatures by 10°C or more in some parts of the northwestern United States."
Dr Jeff Masters, Director of Meteorology at Weather Underground .. http://www.wunderground.com/blog/ .. says the eruption isn't expected to have a significant impact on weather patterns in the northern hemisphere.
"However, the ash could bring spectacular sunsets to Europe over the next week, and to North America by sometime next week, as the jet stream wraps the ash cloud eastwards across the northern hemisphere."
http://www.abc.net.au/science/articles/2010/04/16/2875041.htm
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”
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