In early October 2011, flooding struck the Indian province of Bihar, drowning villages, destroying roads, and claiming lives. On October 9, 2011, the Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite captured the top image showing part of Bihar Province. For comparison, the bottom image shows the same area as observed by the Thematic Mapper on the Landsat 5 satellite on November 5, 2005.
In these false-color images, vegetation is bright green, water is blue, bare ground is earth-toned, and clouds are pale pink. In 2005, water is confined to a few river channels, and most of the area is dry. Six years later, water swells rivers and fills floodplains, particularly in the east.