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Bookmark or Share- Volcanic ash - WikipediaAsh cloud from the 2008 eruption of Chaitén volcano, Chile, stretching across Patagonia from the Pacific to the Atlantic Ocean. Ash plume rising from Eyjafjallajökull on April 17, 2010. Volcanic ash deposits on a parked McDonnell Douglas DC-10-30 during the 1991 eruption of Mount Pinatubo.
- Volcanic Ash - National Geographic SocietyVolcanic ash is a mixture of rock, mineral, and glass particles expelled from a volcano during a volcanic eruption.The particles are very small—less than 2 millimeters in diameter. They tend to be pitted and full of holes, which gives them a low density.Along with water vapor and other hot gases, . volcanic ash is part of the dark ash column that rises above a volcano when it erupts.
- Volcanic Cloud Monitoring -- NOAA/CIMSSThe NOAA/CIMSS Volcanic Cloud Monitoring web site features near real-time processing of many geostationary and low-earth orbit satellites covering much of the globe. The content within the web site is a result of NOAA funded Volcanic Ash research projects led by NOAA scientist Michael Pavolonis.
- Ashfall is the most widespread and frequent volcanic hazardAs a result of its fine-grained abrasive character and widespread distribution by wind, ashfall and volcanic ash clouds are a major hazard to aviation. The primary hazard from Alaska volcanoes is ashclouds impacting aviation and ashfall reaching areas downwind, owing to widespread dispersal by wind.
- NASA SVS | Tracking Volcanic Ash With SatellitesVolcano eruptions can wreak havoc on airplanes that fly through the clouds of ash and sulfur dioxide. The ash, in particular, can destroy a jet engine and even cause it to fail mid-flight. However, it can be difficult to detect the ash clouds, because they often look like ordinary rain clouds on radar and to the pilot's eye.
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