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... > Science Keywords > EARTH SCIENCE > CLIMATE INDICATORS > LAND SURFACE/AGRICULTURE INDICATORS > DROUGHT INDICES > PALMER DROUGHT SEVERITY INDEX

Preferred term

PALMER DROUGHT SEVERITY INDEX  

Definition

  • The Palmer Index or the Palmer Drought Severity Index (PDSI) is an index formulated by Palmer (1965) and compares the actual amount of precipitation received in an area during a specified period with the normal or average amount expected during that same period. <P> The PDSI is based on a procedure of hydrologic or water balance accounting by which excesses or deficiences in moisture are determined in relation to average climatic values. (en)

Broader concept

Change note

  • 2012-06-26 11:05:20.0 [gee-cee] Move Concepts add broader relation (PALMER DROUGHT SEVERITY INDEX [a43850a1-7b00-4993-80ff-753c2b5c4015,20045] - LAND SURFACE/AGRICULTURE INDICATORS [112e71ec-c0a1-49a8-82d7-bcb317b45860,39835]); delete broader relation (null);
  • 2012-06-26 11:44:45.0 [gee-cee] Move Concepts delete broader relation (null); add broader relation (PALMER DROUGHT SEVERITY INDEX [a43850a1-7b00-4993-80ff-753c2b5c4015,20045] - DROUGHT INDICES [f50672b3-13d8-4206-b6c9-a1f9891ea470,39837]);

URI

https://gcmd.earthdata.nasa.gov/kms/concept/a43850a1-7b00-4993-80ff-753c2b5c4015

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