PIA19681: NASA Spacecraft Views Aftermath of Texas Floods
 Target Name:  Earth
 Is a satellite of:  Sol (our sun)
 Mission:  Terra
 Spacecraft:  Terra
 Instrument:  ASTER
 Product Size:  2448 x 1380 pixels (w x h)
 Produced By:  JPL
 Full-Res TIFF:  PIA19681.tif (10.14 MB)
 Full-Res JPEG:  PIA19681.jpg (531.8 kB)

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The torrential rains that lashed Texas in late May 2015 caused widespread flooding and devastation. Now that skies have partially cleared, evidence of the excessive water can still be seen in this image, acquired June 1, 2015 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra spacecraft. Located south of San Antonio, the Nueces River was one of many that overflowed its banks, sending water into adjacent fields and towns. The image covers an area of 23 by 13 miles (37 by 21 kilometers), and is located at 28.2 degrees north, 99 degrees west.

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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