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 Rogue's Gallery of Natural Disasters: Drought
In recent years the world has been plagued by severe droughts. During the summer months of 1980, 1988, and 1991 drought conditions covered much of the Central and Eastern portions of the United States. Drought struck again in 1993 in the southeastern states. According to NOAA, the combined damage costs for these relatively short droughts were estimated in the tens of billions of dollars, along with an estimated death toll of approximately 15,000 to 20,000. In 1997 droughts caused disasters in eight countries.

Below are two digital maps of the American Midwest depicting climatic conditions during the summer of 1991 (left: drought conditions) and 1993 (right: heavy rainfall). The effects of decreased precipitation on agriculture can be seen by comparing the two images. The 1993 map shows a more extensive vegetative cover than the 1991 map.

  Image one of the digital maps that show the time-integrated Normalized Difference Vegetation Index over the American Midwest. This image links to a more detailed image.   Image two of the digital maps that show the time-integrated Normalized Difference Vegetation Index over the American Midwest. This image links to a more detailed image.

Images: From an article by Bradley C. Reed of the EROS Data Center.
Click on the maps for a larger version.

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