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The estuaries of the Saloum River, near the coast in Senegal, are surrounded by mangrove forest. These images show the forests dying between 1972 and 1992, turning from dark red to gray. A deepening of the gray colors in the 2016 image indicates further mangrove die-off. The likely cause is a persistent drought, which may have increased the estuary’s salinity beyond the mangroves’ tolerance.

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Nov. 5, 1972, Landsat 1 (path/row 220/50) — Saloum River, Senegal
Oct. 31, 1992, Landsat 4 (path/row 205/50) — Saloum River, Senegal
Nov. 26, 2016, Landsat 8 (path/row 205/50) — Saloum River, Senegal

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References (Earthshot Overview/Parent Only)

Remote Sensing Institute, 1986, Mapping and remote sensing of the resources of the Republic of Senegal—a study of the geology, hydrology, soils, vegetation and land use potential: Brookings, South Dakota, South Dakota State University, 655 p.

 

Thanks to Gray Tappan, USGS EROS, for photographs and written material.

 

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