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Evolution and application of instream flow methodologies to small hydropower developments: an overview of the issues

May 1, 1985

ethods for evaluating instream flow needs have evolved over the last 30 years resulting in two categories which are defined as “standard-setting” and “incremental”. Standard-setting methodologies refer to those measurement and interpretative techniques designed to generate a flow value(s) which is intended to maintain the fishery at some acceptable level. Incremental methodologies on the other hand are organized and repeatable processes by which: (1) a fishery habitat/streamflow relationship and the hydrology of the stream are transformed into a baseline habitat time series; (2) proposed water management alternatives are quantified and compared with the baseline; and (3) project operating rules are negotiated. A hierarchical approach to small-hydro instream flow analysis is suggested.

Citation Information

Publication Year 1985
Title Evolution and application of instream flow methodologies to small hydropower developments: an overview of the issues
DOI
Authors E. Woody Trihey, Clair B. Stalnaker
Publication Type Book
Publication Subtype Conference publication
Series Title
Series Number
Index ID 70121027
Record Source USGS Publications Warehouse
USGS Organization