News tagged with ash plume
Satellite images show eruption on Alaska volcano
(AP) -- A volcano on a remote Alaska island has begun erupting, but poses little danger to people or aircraft, officials said Tuesday.
Space & Earth / Earth Sciences
Aug 10, 2011 |
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Three active volcanoes spotted on satellite imagery from NASA
(PhysOrg.com) -- From space, NASA keeps a watchful eye on volcanic activity around the world with many satellites. NASA has just released satellite images showing activity this week from volcanoes in the countries ...
Space & Earth / Earth Sciences
Jul 11, 2011 |
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Months of geologic unrest signaled reawakening of Icelandic volcano
Months of volcanic restlessness preceded the eruptions this spring of Icelandic volcano Eyjafjallajökull, providing insight into what roused it from centuries of slumber.
Space & Earth / Earth Sciences
Nov 17, 2010 |
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Electric ash found in Eyjafjallajokull's plume, say UK researchers
In the first peer-reviewed scientific paper to be published about the Icelandic volcano since its eruption in April 2010, UK researchers write that the ash plume which hovered over Scotland carried a significant ...
Space & Earth / Earth Sciences
May 27, 2010 |
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Envisat keeping an eye on the Eyjafjallajoekull volcano
(PhysOrg.com) -- The development of the ash plume from Iceland's Eyjafjallajoekull volcano between 17-20 April is tracked in this series of Envisat images.
Space & Earth / Earth Sciences
Apr 21, 2010 |
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Ash may hover for days over uncertain Europe
(AP) -- The Icelandic volcano that has kept much of Europe land-bound is far from finished spitting out its grit, and offered up new mini-eruptions Saturday that raise concerns about longer-term damage to ...
Space & Earth / Earth Sciences
Apr 18, 2010 |
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Alaska volcano Mount Redoubt erupts 5 times
(AP) -- Alaska's Mount Redoubt volcano erupted five times overnight, sending an ash plume more than 9 miles into the air in the volcano's first emissions in nearly 20 years.
Space & Earth / Earth Sciences
Mar 23, 2009 |
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One week of ash from Mexico's volcano
(Phys.org) -- Satellites continue to provide a look at the ash and gas clouds being emitted from Mexico's Popocatepetl Volcano. NASA has animated imagery from NOAA's GOES-13 satellite to provide a week long ...
Space & Earth / Earth Sciences
Apr 24, 2012 |
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Ash cloud from Mexico's Popocatepetl volcano (w/ video)
(Phys.org) -- NOAA's Geostationary Operational Environmental Satellite, GOES-13, captures visible and infrared images of weather over the eastern U.S. every 15 minutes, and spotted an ash and gas cloud streaming from Mexico's ...
Space & Earth / Earth Sciences
Apr 23, 2012 |
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Satellite gallery shows Chilean volcano plume moving around the world
Since its eruption in early June, several NASA satellites have captured images of the ash plume from the eruption of the Chilean Volcano called Puyehue-Cordón Caulle and have tracked it around the world. ...
Space & Earth / Earth Sciences
Jun 15, 2011 |
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3 satellites see eruption of Puyehue-Cordon volcano from space
NASA's Terra Satellite, the GOES-13 and GOES-11 satellites all captured images of the ash plume from southern Chile's Puyehue-Cordón Volcano this week. The volcano is located in Puyehue National Park ...
Space & Earth / Earth Sciences
Jun 06, 2011 |
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Iceland volcano eruption all but over: experts
The eruption of Iceland's Grimsvoetn volcano has tailed off and its ash plume has almost disappeared, experts and officials said on Wednesday, refusing though to declare the flight-disrupting incident closed.
Space & Earth / Earth Sciences
May 25, 2011 |
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Satellites monitor Icelandic ash plume
(PhysOrg.com) -- As Iceland's Grímsvötn volcano spews ash high into the atmosphere, satellite observations are providing essential information to advisory centres assessing the possible hazards to ...
Space & Earth / Earth Sciences
May 24, 2011 |
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Icelandic volcano flings up ash, shuts airport
(AP) -- Iceland closed its main international airport and canceled all domestic flights Sunday as a powerful volcanic eruption sent a plume of ash, smoke and steam 12 miles (20 kilometers) into the air.
Space & Earth / Earth Sciences
May 22, 2011 |
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NASA's Aqua satellite catches glimpse of Russia's active volcanoes
NASA's Aqua satellite flew over the erupting Shiveluch Volcano in Russia yesterday and captured a visible image of its ash plume. Shiveluch is one of Russia's most active volcano and is currently spewing a ...
Space & Earth / Earth Sciences
Oct 29, 2010 |
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Eruption column
An eruption column consists of hot volcanic ash emitted during an explosive volcanic eruption. The ash forms a column rising many kilometres into the air above the peak of the volcano. In the most explosive eruptions, the eruption column may rise over 40 km, penetrating the stratosphere. Stratospheric injection of aerosols by volcanoes is a major cause of short-term climate change.
A common occurrence in explosive eruptions is for column collapse to occur. In this case, the eruption column is too dense to be lifted high into the air by air convection, and instead falls down the flanks of the volcano to form a pyroclastic flow or surge.
For more information about Eruption column, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
