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A New Tool for Assessing Environmental Impacts of Altering Short-Term Flow and Water Level Regimes

Bejarano, Maria Dolores and Garcia-Palacios, Jaime H. and Sordo-Ward, Alvaro and Garrote, Luis and Nilsson, Christer (2020). A New Tool for Assessing Environmental Impacts of Altering Short-Term Flow and Water Level Regimes. Water. 12 , 2913
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Abstract

The computational tool InSTHAn (indicators of short-term hydrological alteration) was developed to summarize data on subdaily stream flows or water levels into manageable, comprehensive and ecologically meaningful metrics, and to qualify and quantify their deviation from unaltered states. The pronunciation of the acronym refers to the recording interval of input data (i.e., instant). We compared InSTHAn with the tool COSH-Tool in a characterization of the subdaily flow variability of the Colorado River downstream from the Glen Canyon dam, and in an evaluation of the effects of the dam on this variability. Both tools captured the hydropeaking caused by a dam operation, but only InSTHAn quantified the alteration of key flow attributes, highlighting significant increases in the range of within-day flow variations and in their rates of change. This information is vital to evaluate the potential ecological consequences of the hydrological alteration, and whether they may be irreversible, making InSTHAn a key tool for river flow management.

Authors/Creators:Bejarano, Maria Dolores and Garcia-Palacios, Jaime H. and Sordo-Ward, Alvaro and Garrote, Luis and Nilsson, Christer
Title:A New Tool for Assessing Environmental Impacts of Altering Short-Term Flow and Water Level Regimes
Series Name/Journal:Water
Year of publishing :2020
Volume:12
Article number:2913
Number of Pages:20
Publisher:MDPI
ISSN:2073-4441
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Oceanography, Hydrology, Water Resources
Keywords:fluvial ecosystems, hydropeaking, InSTHAn tool, short-term flow regimes, subdaily flows, sustainable river management
URN:NBN:urn:nbn:se:slu:epsilon-p-109005
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109005
Additional ID:
Type of IDID
DOI10.3390/w12102913
Web of Science (WoS)000582849800001
ID Code:19097
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Wildlife, Fish and Environmental Studies
Deposited By: SLUpub Connector
Deposited On:03 Dec 2020 12:03
Metadata Last Modified:15 Jan 2021 19:17

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