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IdentificationMission: ISS033 Roll: E Frame: 6202 Mission ID on the Film or image: ISS033
Country or Geographic Name: BOLIVIA
Features: SALAR DE COIPASA, SEDIMENT, LAGO COIPASA
Center Point Latitude: -19.3 Center Point Longitude: -68.1 (Negative numbers indicate south for latitude and west for longitude)
Stereo: (Yes indicates there is an adjacent picture of the same area)
ONC Map ID: JNC Map ID:
CameraCamera Tilt: 37
Camera Focal Length: 400mm
Camera: N5: Nikon D3S
Film: 4256E : 4256 x 2832 pixel CMOS sensor, 36.0mm x 23.9mm, total pixels: 12.87 million, Nikon FX format.
Percentage of Cloud Cover: 10 (0-10)
NadirGMT Date: 20120920 (YYYYMMDD) GMT Time: 174658 (HHMMSS)
Nadir Point Latitude: -18.1, Longitude: -65.5 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: West
Sun Azimuth: 307 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 230 nautical miles (426 km)
Sun Elevation Angle: 61 (Angle in degrees between the horizon and the sun, measured at the nadir point)
CaptionsSalar de Coipasa, Bolivia
Note: This caption refers to the image versions labeled "NASA's Earth Observatory web site".
The Salar de Coipasa, located in the Altiplano region of western Bolivia, covers an area of approximately 2500 square kilometers. The word “salar” describes arid closed basins in which evaporation of mineral-rich waters leads to the formation of thick, flat-laying salt deposits. Salar de Coipasa is located to the southwest of the saline Lake Poopo and northwest of the largest salt flat in the world, Salar de Uyuni. At Coipasa, a crust composed of halite—common table salt—provides the brilliant white coloration characteristic of the Altiplano salars (image left).
While the environment of Salar de Coipasa is arid, it does receive constant water from the Lauca River flowing from the north; this feeds Lake (Lago) Coipasa that fills the northern end of the basin with shallow water (image center). However, the water flow can drop off sharply during periods of drought. The waters of Lake Coipasa, and the white salt crust of the salar, also serve to highlight dark river sediments flowing into the basin along the northeastern shore. Dark volcanic rocks contrast sharply with the surrounding salt crust at image left. While the western Andes mountains contain many active volcanoes, the nearby Tata Sabaya volcano (not shown) has not been historically active.
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