Downstream effects of river impoundment on hydrological and geomorphological aspects of bedrock rivers (Golan Heights, Israel)

Nurit Shtober-Zisu, Moshe Inbar

Research output: Contribution to journalArticlepeer-review

Abstract

Construction of dams along rivers affects the hydrological regime and the geomorphology. Two similar catchments were analysed: the impounded Daliyyot River (with impounded runoff index IR = 37%) and the nonimpounded Meshushim River (IR = 1%). In the impounded basin, the specific average peak discharge and the annual average water volume discharge decreased by more than 50%; the recurrence interval time period increased for highest peak flows and the bankfull flow area decreased as peak discharges fell. Minor geomorphic changes occurred in the morphological cross sections only after major floods, with a recurrence interval of 1:5 years for the Meshushim River and 1:20 years. Small ponds downstream of the dams were partially filled with fine sediments.

Original languageEnglish
Pages (from-to)217-222
Number of pages6
JournalIAHS-AISH Publication
Issue number299
StatePublished - 2005

Keywords

  • Dams
  • Downstream effects
  • Golan Heights
  • Hydrological regime

ASJC Scopus subject areas

  • Water Science and Technology
  • Oceanography

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