drought is defined as an interval
of time, generally of the order of
months or years, during which the actual moisture supply at a given place cumulatively
falls short of climatically appropriate moisture supply.
is typically defined as a period when soil moisture is
to meet evapotranspirative demands so as to initiate and sustain crop growth. Another
facet of agricultural drought is a deficiency of water for livestock or other farming
typically refers to periods of below-normal streamflow
depleted reservoir storage.
typically refers to periods when water demand exceeds
|Maidment, David R., ed., 1992 Handbook of Hydrology: New York, McGraw-Hill, Inc.|
USGS--Water Resources of Virginia
U.S. Department of Interior, U.S. Geological Survey
URL://va.water.usgs.gov/drought/drought_define.htm Last modified: 11/13/02 08:23:16 AM