These three Landsat 5 images show several rivers in southern Illinois and Indiana, USA, during normal and flooded conditions. Peak flooding was observed in this area on June 10 and 11, 2008. The clear Landsat scene from June 11, 2008, and the clear image of “normal” conditions from June 9, 2007, allow us to compare the scenes and see exactly what damage a flood of this magnitude can cause.
Rainfall amounts ranging from about 2 inches to more than 10 inches fell in this area on June 6–7, 2008. Spring was wetter than normal, so the heavy rain easily saturated the ground. The rivers quickly rose to exceed flood stage.
Satellite images can help authorities respond to disasters such as floods. The images can help local authorities see the amount of flooding and where there is damage to property. The extent of the flood can be mapped so that response teams can view where they are needed and respond quickly.
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