PIA15557: NASA Spacecraft Images Fiji Flooding
 Target Name:  Earth
 Is a satellite of:  Sol (our sun)
 Mission:  Terra
 Spacecraft:  Terra
 Instrument:  ASTER
 Product Size:  1340 x 1156 pixels (w x h)
 Full-Res TIFF:  PIA15557.tif (4.652 MB)
 Full-Res JPEG:  PIA15557.jpg (262.5 kB)

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Fiji was hard hit by heavy rains in early 2012, causing flooding and landslides. Hardest hit was the western part of the main Island of Viti Levu, Fiji, and the principal city of Nadi. Thousands of people were displaced and the Disaster Management Office declared a state of emergency. In this simulated natural color image acquired by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra spacecraft on April 7, 2012, the muddy overflowing Nadi River and its tributaries are seen winding through the city of Nadi. The image covers an area of 10.7 by 12.5 miles (17.3 by 20.1 kilometers), and is located at 17.6 degrees south latitude, 177.7 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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