Drought indices for drought risk assessment in a changing climate

Research output: Chapter in Book/Report/Conference proceedingChapter

13 Scopus citations

Abstract

As common as drought occurrences are around the world, a standard definition for drought isn’t recognized. Even among the experts who study droughts, a single standard definition is not easy to agree upon. In the simplest of meanings, drought can be identified as a deficit of precipitation from an expected average over an established time frame. To better define drought, one needs to establish the context in which the phenomenon and its associated impacts are being described. Wilhite and Glantz (1985) identified more than 150 published definitions of drought; from these, drought was classified into 4 types: meteorological, agricultural, hydrological, and socioeconomic. As their names imply, these diverse drought types impact different sectors, but in most instances the impacts related to each overlap both temporally and spatially (Figure 12.1).

Original languageEnglish (US)
Title of host publicationHandbook of Engineering Hydrology
Subtitle of host publicationModeling, Climate Change, and Variability
PublisherCRC Press
Pages217-231
Number of pages15
ISBN (Electronic)9781466552470
ISBN (Print)9781466552463
DOIs
StatePublished - Jan 1 2014

ASJC Scopus subject areas

  • General Environmental Science
  • General Engineering

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