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Determination of water stress indices as a function of ecological flows

  • A. S. Mayer
  • , D. W. Watkins
  • , A. S. Mirchi
  • , R. Gyawali
  • , K. A. Watson
  • Michigan Technological University
  • Boise State University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Water stress indices provide a measure of streamflow depletion caused by high rates of withdrawal in relation to renewable supply. In this work, we calculate water stress indices for sub-watersheds in the Kalamazoo River watershed, Michigan, based on local or regionally derived withdrawals, consumptive use coefficients, and stream discharges. We demonstrate the impacts of uncertainty in consumptive use coefficients. We assess the impacts of temporal scale by calculating indices on an average annual basis and during months when withdrawals are highest and flows are lowest. We compare calculated stress indices to location-specific, ecologically-based, critical flow depletions. Calculated flow depletions were found to exceed the critical depletions in a significant number of the HUC-12 watersheds.

Original languageEnglish
Title of host publicationWorld Environmental and Water Resources Congress 2012
Subtitle of host publicationCrossing Boundaries, Proceedings of the 2012 Congress
PublisherAmerican Society of Civil Engineers (ASCE)
Pages3388-3396
Number of pages9
ISBN (Print)9780784412312
DOIs
StatePublished - 2012
Externally publishedYes
EventWorld Environmental and Water Resources Congress 2012: Crossing Boundaries - Albuquerque, NM, United States
Duration: May 20 2012May 24 2012

Publication series

NameWorld Environmental and Water Resources Congress 2012: Crossing Boundaries, Proceedings of the 2012 Congress

Conference

ConferenceWorld Environmental and Water Resources Congress 2012: Crossing Boundaries
Country/TerritoryUnited States
CityAlbuquerque, NM
Period05/20/1205/24/12

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