Astronaut Photography of Earth - Display Record
ISS019-E-7720
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| File Name | File Size (bytes) | Width | Height | Annotated | Cropped | Purpose | Comments | |
|---|---|---|---|---|---|---|---|---|
| View | ISS019-E-7720.JPG | 80738 | 640 | 437 | No | No | ||
| View | ISS019-E-7720.JPG | 344230 | 540 | 359 | Yes | Yes | NASA's Earth Observatory web site | |
| View | ISS019-E-7720.JPG | 646263 | 1000 | 664 | No | Yes | NASA's Earth Observatory web site | |
| View | ISS019-E-7720.JPG | 739927 | 3072 | 2098 | No | No |
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Electronic Image Data
Camera Files >> No sound file available.Identification
Mission: ISS019 Roll: E Frame: 7720 Mission ID on the Film or image: ISS019Country or Geographic Name: CHINA
Features: YANGTZE R. V., MTS., FOR., THREE GORGES DAM
Center Point Latitude: 30.9 Center Point Longitude: 110.8 (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:
Camera
Camera Tilt: 27Camera Focal Length: 180mm
Camera: N2: Nikon D2Xs
Film: 4288E : 4288 x 2848 pixel CMOS sensor, RGBG imager color filter.
Quality
Film Exposure:Percentage of Cloud Cover: 10 (0-10)
Nadir
Date: 20090415 (YYYYMMDD)GMT Time: 070522 (HHMMSS)Nadir Point Latitude: 30.1, Longitude: 112.2 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: Northwest
Sun Azimuth: 249 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 189 nautical miles (350 km)
Sun Elevation Angle: 49 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 3605
Captions
Three Gorges Dam, ChinaA new reservoir is filling in central China. The Three Gorges Dam on the Yangtze River—the world’s largest dam—was completed in 2006, and the river is filling up its valley behind the dam to form a narrow reservoir extending more than 600 kilometers. This image from April 15, 2009, is one of the first images that astronauts on the International Space Station have been able to capture of the flooding behind the dam. The main objective for the dam is to supply water for the largest hydroelectric plant in the world and to help control the devastating floods that plague the lowlands downstream from the dam.
The epic scale of the dam project is matched by the level of controversy it continues to generate. Concerns about major environmental impacts, the relocation of 1.2 million people, and the flooding of 13 cities, more than 1300 villages, archeological locations, and hazardous waste dumps were raised throughout the planning and implementation. Environmental concerns include increased seismicity from the loading of the water, landslides, changed ecosystems, accumulated pollution, increased chances for waterborne diseases, and salinity changes in the Yangtze estuary.
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