Spatial and Temporal Characterization of Drought

by Donald T. Jensen, Utah State Univ, Logan, United States,

Document Type: Proceeding Paper

Part of: Management of Irrigation and Drainage Systems: Integrated Perspectives


Drought is difficult to define for common understanding. Several definitions are presented. The Palmer Drought Severity Index (PDSI), the Palmer Drought Hydrologic Index (PDHI) and the Palmer Z Index (Z) as calculated for Utah climatic regions and presented as examples of spatial and temporal distributions of drought. Spatial and temporal distribution characterization of drought in Utah can be displayed using interactive computer graphics. Recent droughts are contrasted with historical wet periods. Contrasts are also made among climatic divisions.

Subject Headings: Spatial distribution | Droughts | Hydrologic models | Terminology and definition | Computer software | Graphic methods | Hydrology | Light rail transit | Utah | United States

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