Stochastic modeling of hydrological droughts

Hsieh Wen Shen, Jenq-Tzong Shiau

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The far-reaching impacts of droughts are often spread on larger areas and tend to persist over longer time. Understanding the characteristics of droughts is an essential and important component for design, planning and management of a water resources system. In this study, streamflows are under investigated and hydrological droughts are considered as the period during which stream flows below monthly median. As drought events defined by theory of runs, two important properties of droughts, distributions of drought duration and severity are fitted from data. Then, the occurrences of drought events can be modeled as the alternating renewal process. The return period of drought events is also determined based on the derived severity distribution and mean interarrival time of droughts.

Original languageEnglish
Title of host publicationManaging Water
Subtitle of host publicationCoping with Scarcity and Abundance
PublisherASCE
Pages595-600
Number of pages6
VolumeA
Publication statusPublished - 1997
EventProceedings of the 1997 27th Congress of the International Association of Hydraulic Research, IAHR. Part C - San Francisco, CA, USA
Duration: 1997 Aug 101997 Aug 15

Other

OtherProceedings of the 1997 27th Congress of the International Association of Hydraulic Research, IAHR. Part C
CitySan Francisco, CA, USA
Period97-08-1097-08-15

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Shen, H. W., & Shiau, J-T. (1997). Stochastic modeling of hydrological droughts. In Managing Water: Coping with Scarcity and Abundance (Vol. A, pp. 595-600). ASCE.