7# SR7R7R7R7R7RE.RsRsRsRs R}RRRxRsS S7S]*SR7S]SMS]S]S4S]S]S]S]S]S] File Descriptions: ShuttleV.pic - Hand-held photograph taken by a Space Shuttle crew member. The photograph is taken from an oblique angle, looking roughly Northwards. Death Valley is outlined in yellow. To the left of the image can be seen the southern end of the Sierra Nevada mountain range. GroundV4.pic - shows the Shuttle Hand-held photograph, plus photographs taken from the ground at four different locations within the scene. Site A is Mammoth mountain, a ski resort in the Eastern Sierras. Site B is the sand dunes found in the North end of Death Valley, Site C is a salt pan on the flat valley floor, and Site D is a rough salt deposit in the southern end of the valley. These images show the extremes of climate in California: in Mammoth (at around 9,000 feet above sea level) it is winter, and cold enough for deep snow to be on the ground; in Death Valley (at or below sea level) it is also winter, but warm enough to wear shorts and t-shirts. LocatMap.pic - digitized USGS map of part of Southern California, showing Death valley and its location with respect to Los Angeles. Los Angeles lies near the bottom left of the map, and Death Valley is near the top center. The distance from LA to Death Valley is around 300 miles, and it takes around 6 hours to drive there. Landsat1.pic - Landsat Thematic mapper image of Death Valley. The valley floor, which has salt deposits, appears yellow in this image. Death Valley is surrounded by mountains on both sides, and weathering over time has formed alluvial fans, which consist of small pieces of rock and sand. These alluvial fans can be seen in the Landsat image. Also shown on the image is a rectangular area, outlined in green. This area corresponds to the area to be seen in the AIRSAR radar images LBandful.pic, CBandRed.STK, LBandRed.STK, and PBandRed.STK. GroundV2.pic - ground photograph, showing the flat valley floor in the foreground (including a small bush), the alluvial fans in a strip across the center, and the mountains on the side of the valley in the background. Topomap1.pic - Digitized topographic map of part of Death Valley, showing heights above sea level in meters. Select the System color table under the Options menu in NIHimage to show the height contours in this data. As the mouse moves, the height in meters appears in the Values window of NIHImage. Pointing to the flat valley floor near the center of the image, the height should be around -72 m (i.e. 72 meters below sea level). Moving the mouse up the sides of the valley, the height should increase, and at least one peak above 3000 m can be found. Lbandful.pic - L-band HH radar image of the rectangular area outlined in green in Landsat1.pic. The area is known as Cottonball Basin. This image is rotated when compared with the Landsat1.pic image. It was collected by the NASA/JPL AIRSAR imaging radar system in May 1992. The radar was flying parallel to the top of the image and looking down and out to the left. At the top of the image can be seen an alluvial fan, with some mountains in the top right hand corner. In the center of the image are some salt flats, some of which are rough and appear bright in the radar image, some of which are smooth and appear dark in the radar image. About two-thirds of the way down, on the left-hand edge of the image, there is a ranger station, which is surrounded by trees and also has a small runway for aircraft. VegmpByt.pic - vegetation map of the CottonBall Basin area generated automatically from the AIRSAR data, using all three frequencies and all the different polarizations. Looking at the vegetation map, you should be able to see the following: 1. The valley floor is mostly classified as no vegetation (blue). 2. The alluvial fan is mostly classified as low vegetation (light green), with some areas of no vegetation (blue). 3. The ranger station is classified as forest (bright green and yellow). 4. The are probably some misclassifications present - the medium vegetation (dark green) near the center of the image may be false, and the low vegetation (D) classification near the top of the image is almost certainly an artifact. 5. Several areas are unclassified (white, grey or black). This means that they do not match any of the models for vegetation type, etc. used in the classifier. Vegmpkey.pic - key to the vegetation map shown in VegmpByt.pic. The color codes are: Blue - No vegetation Light Green - Low vegetation (less than 1m) Light Brown - Low vegetation with significant double-bounce Dark Green - Medium vegetation (1 to 3m) Dark Brown - Medium vegetation with significant double-bounce Bright Green - Forest Bright Yellow - Forest with significant double-bounce Urban - settlements White, Grey or Black - Unclassified Vegmphdr.txt - text file showing the percentage classification of each of the classes seen in the VegmpByt.pic file. CBandRed.STK - C-Band AIRSAR image data file containing all polarizations. To display, open the Macsigma0 application by clicking twice on the icon, then select the Open Cmprsd Stokes option under the File menu. SiteWord.txt or SiteText.txt - text file describing the Death Valley super site. 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