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RECORD NUMBER: 42 OF 225

Main Title Ecologically Relevant Quantification of Streamflow Regimes in Western Streams.
Author V. J. Kelly; S. M. Jett
CORP Author U.S. Geological Survey, Corvallis, OR. Oregon Water Science Center.; INDUS Corp., Vienna, VA.; Environmental Protection Agency, Washington, DC. Office of Research and Development.
Year Published 2006
Report Number EPA/620/R-06/056
Stock Number PB2010-106545
Subjects Water quality; Stream flow; Western Region (United States); Data assembly; Frequency analysis; Figures; Tables (Data); Regionalization process; Reliability; Limitations; Missouri; Oregon; Ungaged sites; Ecologically-relevant streamflow metrics; US Geological Survey; Canonical correlation analysis; Metrics; Environmental Monitoring and Assessment Program (EMAP)
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB2010-106545 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/22/2010
Collation 40p
Abstract This report describes the rationale for and application of a protocol for estimation of ecologically-relevant streamflow metrics that quantify streamflow regime for ungaged sites subject to a range of human impact. The analysis presented here is focused on sites sampled by the U.S. Environmental Protection Agency as part of their Environmental Monitoring and Assessment Program in the upper Missouri Basin and Oregon. Streamflow data are provided by the U.S. Geological Survey. Specific guidance is provided for selection of gage sites, development of probabilistic frequency distributions for annual peak- and 7-day low-flow events, and regionalization of the frequency curves based on multivariate analysis of watershed characteristics. Evaluation of the uncertainty associated with the various components of this protocol indicates that the results are reliable for the intended purpose of hydrologic classification to support ecological analysis. They should not be considered suitable for more standard water-resource evaluations that require greater precision, especially those focused on management and forecasting of extreme flow conditions.
Supplementary Notes Prepared in cooperation with INDUS Corp., Vienna, VA. Sponsored by Environmental Protection Agency, Washington, DC. Office of Research and Development.
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PUB Date Free Form Dec 2006
Category Codes 68D; 48G; 48A; 57H; 91A; 43F
NTIS Prices PC A04
Document Type NT
Control Number 109202170
Cataloging Source NTIS/MT
Origin NTIS
Type CAT