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STS049-88-66
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Spacecraft nadir point: 6.5° N, 69.0° W

Photo center point: 6.5° N, 68.5° W

Nadir to Photo Center: East

Spacecraft Altitude: 153 nautical miles (283km)
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Image Caption:
STS49-88-066: LLanos of Venzuela The dry forests of western
Venezuela grow on a soils made of numerous "hairpin" sand dunes
which spread across the llanos country during a drier period of
Earth history. This CVIR image shows the almost continuous
underlying surface of dune sand. The dunes are greater in densi-
ty downwind of the major rivers of the llanos indicating that
sand blew directly out of the dry river courses. Shuttle photog-
raphy has shown the surprising fact that sand blows out of river
beds regularly under the present wetter climate, although dunes
do not form.