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Photo-iss005e12804
International Space Station Imagery
Tarbela Dam, Pakistan
high res (2.0 M) low res (127 K)
ISS005-E-12804 (6 September 2002) --- Tarbela Dam, Pakistan is featured in this image photographed by an Expedition 5 crewmember on the International Space Station (ISS). The Indus River basin extends from the Himalaya mountain ranges forming the northeastern boundary of Pakistan, to the alluvial plains of Sindh near the Arabian Sea coastline. Tarbela Dam is part of the Indus Basin Project that resulted from a water treaty signed in 1960 between India and Pakistan. This treaty guaranteed Pakistan water supplies independent of upstream control by India. Designed primarily for water storage rather than power generation, the dam was completed in 1977. Turquoise waters of the Indus River (to the south of the dam) reflect the high proportion of silt and clay suspended in waters released by the spillways (chutes on either of side of the main dam). With a volume of 142,000,000 cubic meters, the Tarbela Dam is the largest earth and rockfill dam in the world and stands 147 meters above the Indus riverbed. Its reservoir occupies an area of 37 square kilometers. While the dam has fulfilled its purpose in storing water for agricultural use in Pakistan, there have been environmental consequences to the Indus river delta, according to NASA scientists who are studying the Space Station photography. Reduction of seasonal flooding and reduced water flows to the delta have resulted in decrease of mangrove stands and abundance of some fish species.

Curator: JSC PAO Web Team | Responsible NASA Official: Amiko Kauderer | Updated: 10/30/2012
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