ISS002-E-5401
| NASA Photo ID | ISS002-E-5401 |
| Focal Length | 800mm |
| Date taken | 2001.04.10 |
| Time taken | 23:17:13 GMT |
Resolutions offered for this image:
1024 x 700 pixels 540 x 369 pixels 540 x 332 pixels 400 x 273 pixels 3060 x 2092 pixels 3060 x 2036 pixels 640 x 437 pixels
1024 x 700 pixels 540 x 369 pixels 540 x 332 pixels 400 x 273 pixels 3060 x 2092 pixels 3060 x 2036 pixels 640 x 437 pixels
Cloud masks available for this image:
Spacecraft nadir point: 20.5° S, 138.2° W
Photo center point: 19.5° S, 138.5° W
Photo center point by machine learning:
Photo center point: 19.5° S, 138.5° W
Photo center point by machine learning:
Nadir to Photo Center: North
Spacecraft Altitude: 209 nautical miles (387km)
Country or Geographic Name: | TUAMOTU ARCHIPELAGO |
Features: | PINAKI ATOLL |
| Features Found Using Machine Learning: | |
Cloud Cover Percentage: | 10 (1-10)% |
Sun Elevation Angle: | 48° |
Sun Azimuth: | 310° |
Camera: | Kodak DCS460 Electronic Still Camera |
Focal Length: | 800mm |
Camera Tilt: | 17 degrees |
Format: | 3060E: 3060 x 2036 pixel CCD, RGBG array |
Film Exposure: | |
| Additional Information | |
| Width | Height | Annotated | Cropped | Purpose | Links |
|---|---|---|---|---|---|
| 1024 pixels | 700 pixels | Photographic Highlights | Download Image | ||
| 540 pixels | 369 pixels | Photographic Highlights | Download Image | ||
| 540 pixels | 332 pixels | Yes | Yes | NASA's Earth Observatory web site | Download Image |
| 400 pixels | 273 pixels | No | No | Photographic Highlights | Download Image |
| 3060 pixels | 2092 pixels | No | No | Download Image | |
| 3060 pixels | 2036 pixels | No | No | Reef RS | Download Image |
| 640 pixels | 437 pixels | No | No | Download Image |
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Image Caption: This image of the Tuamotu Archipelago, French Polynesia, illustrates diversity in the morphology of atolls, one of the major types of coral reef formations. A typical atoll structure is a lagoon surrounded by a closed rim of cays and shallow spillways that control the exchange of water between the ocean and the lagoon. However, like human beings, this general scheme may vary according to the history of each individual atoll, resulting in a high diversity of morphology, especially for small atolls. Pinaki (3.54 km2) has a drying shallow lagoon still connected to the ocean via a single narrow spillway. Images such as these are useful to classify and study the atolls according to their spatial structure.
