File:Lake Chad (27410150633).jpg
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| Description | This photograph of Lake Chad was taken by the crew of STS-61. The lake, which belongs to the countries of Chad, Cameroon, Nigeria, and Niger, is a sedimentary basin that is controlled by climate and rainfall. The lake is divided into two basins—the south basin fed by the Chari River and the north basin fed by the Komadougou River. The south basin, with its delta along the southern shore, has a distinct advantage in that the Sahel (a transition zone between the true desert and the grasslands south of the desert) generally receives more precipitation than the region west of Lake Chad that provides recharge water for the north basin. The south basin’s water level has remained relatively constant during the decades of the 1980s and 1990s, while the north basin has shown little evidence of standing water since the late 1960s and early 1970s. Extensive sand dunes exist within the northern half of the south basin, but there appears to be vegetation in this area. |
| Date | |
| Source | Lake Chad |
| Author | NASA Hubble Space Telescope |
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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by NASA Hubble at https://flickr.com/photos/144614754@N02/27410150633 (archive). It was reviewed on 13 July 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:40, 13 July 2018 | | 5,266 × 5,266 (11.77 MB) | Hiàn (alt) (talk | contribs) | Transferred from Flickr via #flickr2commons |
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