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Droughts Edit

Definition Edit

Conceptually, there are four main types of drought:

  • Meteorological drought is brought about when there is a prolonged period with less than average precipitation. Meteorological drought usually precedes the other kinds of drought.
  • Agricultural drought is brought about when there is insufficient moisture for crop or range production. This condition can arise, even in times of average precipitation, owing to soil conditions or agricultural techniques.
  • Physiological drought is a condition afflicting plants that have been exposed to too much salt, preventing them from absorbing water from soil. It is not related to climatological drought.
  • Hydrological drought is brought about when the water reserves available in sources such as aquifers, lakes, and reservoirs falls below the statistical average. This condition can arise, even in times of average (or above average) precipitation, when increased usage of water diminishes the reserves.

Decision makers at all levels need to decide ahead of time on an operational definition of drought that is relevant for their circumstances, and what actions they will take when they are in a drought. Decision-makers include homeowners, farmers and ranchers, urban water suppliers, and policy makers. Each has different options and constraints.

Source: Wikipedia

Incidents Edit

  • No incidents are being monitored at this time

See also Edit

External links Edit

NOAA Drought Information Center
http://www.drought.noaa.gov/
US Drought Monitor with Map
http://www.drought.unl.edu/dm/monitor.html

Nebraska
The seven year Nebraska panhandle drought is a slow disaster. We are getting a preview of climate change which gets little attention in the press unlike wildfires, hurricanes and the melting ice caps and glaciers. What will be the long range effects of droughts on companion animals and rescues?
Drought central Nebraska
http://droughtcentral.org/
Nebraska drought map
http://droughtcentral.org/images/2006_map.jpg

Categories Edit

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