From ASTER Images
In this 3-D perspective view looking north over Death Valley, California, ASTER's bands 13 (10.6µm), 12 (9.1µm), and 10 (8.3µm) are displayed in red, green and blue respectively. The data have been computer enhanced to exaggerate the color variations that highlight differences in types of surface materials. Salt deposits on the floor of Death Valley appear in shades of yellow, green, purple, and pink, indicating the presence of carbonate, sulfate, and chloride minerals. The Panamint Mountains to the west and the Black Mountains to the east are made up of sedimentary limestones, sandstones, shales and metamorphic rocks. The bright red areas are dominated by the mineral quartz, found in sandstones; green areas are limestones. In the lower center of the image is Badwater, the lowest point in North America.
The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of International Trade and Industry. The primary goal of the ASTER mission is to obtain high-resolution image data in 14 channels over the entire land surface, as well as black and white stereo images. With revisit time of between 4 and 16 days, ASTER will provide the capability for repeat coverage of changing areas on Earth's surface.
Image Title: ASTER Views Death Valley
Target Name: Earth
Credit: NASA/GSFC/MITI/ERSDAC/JAROS and U.S./Japan ASTER Science Team
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Last Modified On: Monday, Friday, February 23, 2001