Ugab River, Namibia
July 25, 2004
Elusive, but ecologically vital, Namibia's Ugab River only flows above ground for a few days each year. The subterranean waters underlying this ephemeral river, however, are shallow enough in places to fill hollows and sustain a wildlife population that includes the rare desert elephant. This image was acquired by Landsat 7's Enhanced Thematic Mapper plus (ETM+) sensor. Image provided by the USGS EROS Data Center Satellite Systems Branch as part of the Earth as Art II image series.
Topics: Environment, Ugab River, Bodies of water, Geography, Ephemeral, Landsat 7, Landsat program, Thematic Mapper, Earth, Namibia