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Different Types of Drought. 1  A Meteorological drought. This happens when a piece of land or region, is subjected to a prolonged period of no rain. 2  Agricultural drought. An agricultural drought effects the production of crops; and can be triggered by soil conditions changing and erosion.
Droughts in the United States. Drought in the United States is similar to that of other portions of the globe. Below normal precipitation leads to drought, which is caused by an above average persistence of high pressure over the drought area. Changes in the track of extratropical cyclones, which can occur during climate cycles such as the El NiÃ±o-Southern Oscillation, or ENSO, as well as the North Atlantic Oscillation, Pacific Decadal Oscillation, and Atlantic multidecadal oscillation, modulates which areas would be ...