PIA14272: NASA Spacecraft Spots Fury of Disruptive Chilean Volcano
 Target Name:  Earth
 Is a satellite of:  Sol (our sun)
 Mission:  Terra
 Spacecraft:  Terra
 Instrument:  ASTER
 Product Size:  2745 x 1842 pixels (w x h)
 Produced By:  JPL
 Full-Res TIFF:  PIA14272.tif (15.17 MB)
 Full-Res JPEG:  PIA14272.jpg (521 kB)

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Southern Chile's Puyehue volcano came to life on June 4, 2011, after decades of dormancy. Winds spread the ash column eastward over neighboring Argentina, leading to the evacuation of thousands of residents. Ash from the volcano has grounded flights in Chile, Bolivia, Argentina, Uruguay and Paraguay. Stratospheric winds have carried the ash particles as far as Australia, causing disruption to air traffic over Australia and New Zealand.

The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra spacecraft acquired this image of the volcano on June 11, 2011. The image covers an area of 17.1 by 25.5 miles (27.6 by 41.2 kilometers) and is located near 40.4 degrees south latitude, 72.1 degrees east longitude.

With its 14 spectral bands from the visible to the thermal infrared wavelength region and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), ASTER images Earth to map and monitor the changing surface of our planet. ASTER is one of five Earth-observing instruments launched Dec. 18, 1999, on Terra. The instrument was built by Japan's Ministry of Economy, Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and data products.

The broad spectral coverage and high spectral resolution of ASTER provides scientists in numerous disciplines with critical information for surface mapping and monitoring of dynamic conditions and temporal change. Example applications are: monitoring glacial advances and retreats; monitoring potentially active volcanoes; identifying crop stress; determining cloud morphology and physical properties; wetlands evaluation; thermal pollution monitoring; coral reef degradation; surface temperature mapping of soils and geology; and measuring surface heat balance.

The U.S. science team is located at NASA's Jet Propulsion Laboratory, Pasadena, Calif. The Terra mission is part of NASA's Science Mission Directorate, Washington, D.C.

More information about ASTER is available at http://asterweb.jpl.nasa.gov/.

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