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Global Drought Hazard Frequency and Distribution


Original Data Basin Creation Date
2011-03-04 09:56:59
Original Data Basin Modified Date
2011-03-08 06:17:54


Global Drought Hazard Frequency and Distribution is a 2.5 by 2.5 minute grid based upon the International Research Institute for Climate Predition's (IRI) Weighted Anomaly of Standardized Precipitation (WASP). Utilizing average monthly precipitation data from 1980 through 2000 at a resolution of 2.5 degrees, WASP assesses the precipitation deficit or surplus over a three month temporal window that is weighted by the magnitude of the seasonal cyclic variation in precipitation. The three months' averages are derived from the precipitation data and the median rainfall for the 21 year period is calculated for each grid cell. Grid cells where the three month running average of precipitation is less than 1 mm per day ae excluded. Drought [...]


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  • Data Basin



Data source
Center for Hazards and Risks Research (CHRR); Center for International Earth Science Information Network (CIESIN), Columbia University; International Research Institute for Climate Prediction (IRI)
Harvested on Fri May 23 09:39:39 MDT 2014 from Data Basin Service

Additional Information


Type Scheme Key
UniqueKey Data Basin 57115c8b45364678b005eb92184dbed0

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