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Published on Jul 17, 2012
The United States is experiencing one of the worst droughts since the 1950's. Hot temperatures and low precipitation have created a visible impact across the nation: stressed and dying vegetation. NOAA's satellites are used to measure the impact of drought on vegetation, and in many ways, the ability to measure the impact on vegetation provides a more readily understandable way to measure drought. This animation shows monthly composites of vegetation health index derived from data from the AVHRR sensor on-board the NOAA POES satellite. Areas colored in shades of orange are experiencing moderate through exceptional drought conditions and are consistent with areas of vegetation stress.