ISS005-E-12804
| NASA Photo ID | ISS005-E-12804 |
| Focal Length | 800mm |
| Date taken | 2002.09.06 |
| Time taken | 06:23:35 GMT |
1000 x 1510 pixels 540 x 815 pixels 540 x 540 pixels 3032 x 2064 pixels 639 x 435 pixels
Photo center point: 34.1° N, 72.7° E
Photo center point by machine learning:
Country or Geographic Name: | PAKISTAN |
Features: | TARBELA DAM COMPLEX, INDUS R. |
| Features Found Using Machine Learning: | |
Cloud Cover Percentage: | 10 (1-10)% |
Sun Elevation Angle: | 61° |
Sun Azimuth: | 158° |
Camera: | Kodak DCS760c Electronic Still Camera |
Focal Length: | 800mm |
Camera Tilt: | 10 degrees |
Format: | 3060E: 3060 x 2036 pixel CCD, RGBG array |
Film Exposure: | |
| Additional Information | |
| Width | Height | Annotated | Cropped | Purpose | Links |
|---|---|---|---|---|---|
| 1000 pixels | 1510 pixels | No | Yes | Earth From Space collection | Download Image |
| 540 pixels | 815 pixels | Yes | Yes | Earth From Space collection | Download Image |
| 540 pixels | 540 pixels | Yes | Yes | NASA's Earth Observatory web site | Download Image |
| 3032 pixels | 2064 pixels | No | No | Download Image | |
| 639 pixels | 435 pixels | No | No | Download Image |
The Indus River basin extends from the Himalaya Mountains that form 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, which 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 rock fill 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. Reduction of seasonal flooding and reduced water flows to the delta have decreased mangrove stands and the abundance of some fish species.
