2011
DOI: 10.1002/hyp.7976
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Causes of systematic over‐ or underestimation of low streamflows by use of index‐streamgage approaches in the United States

Abstract: Abstract:Low-flow characteristics can be estimated by multiple linear regressions or the index-streamgage approach. The latter transfers streamflow information from a hydrologically similar, continuously gaged basin ('index streamgage') to one with a very limited streamflow record, but often results in biased estimates. The application of the index-streamgage approach can be generalized into three steps: (1) selection of streamflow information of interest, (2) definition of hydrologic similarity and selection … Show more

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Cited by 14 publications
(18 citation statements)
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References 27 publications
(45 reference statements)
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“…The number of total measured flows (two per recession) examined in this experiment was 4, 6, 8, 10, and 12 days. Eng et al () used longer recessions (at least an 8‐day drop) and more baseflow measurements (20 measurements to estimate 10 values of τ) for regional regression with τ. A less stringent baseflow criterion and fewer measurements to reduce the total duration of sampling needed to obtain low streamflow estimates were used.…”
Section: Experimental Designmentioning
confidence: 99%
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“…The number of total measured flows (two per recession) examined in this experiment was 4, 6, 8, 10, and 12 days. Eng et al () used longer recessions (at least an 8‐day drop) and more baseflow measurements (20 measurements to estimate 10 values of τ) for regional regression with τ. A less stringent baseflow criterion and fewer measurements to reduce the total duration of sampling needed to obtain low streamflow estimates were used.…”
Section: Experimental Designmentioning
confidence: 99%
“…Baseflow correlation and scaling methods rely on a gauged donor site; selection of the donor site can have a large influence on the performance of low flow estimators (Eng et al, ; Laaha & Blöschl, ; Zhang & Kroll, ). There are a wide range of techniques that can be used to select donor sites such as the nearest neighbour (NN), drainage area within a certain range, annual precipitation within a certain range, map correlation method, and various other basin characteristics and spatial methods (Archfield & Vogel, ; Clark & Evans, ; Laaha & Blöschl, ; Ries & Friesz, ; Zhang & Kroll, ).…”
Section: Experimental Designmentioning
confidence: 99%
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“…Discrete streamflow measurements at ungauged sites have been used to improve regional estimation of low-flow statistics, but their value depends on the timing of the measurement and the hydrological similarity of streams in a region (Hirsch, 1982;Stedinger & Thomas, 1985;Laaha & Blӧschl, 2005;Eng & Milly, 2007;Seibert & Beven, 2009;Eng et al, 2011;Stagnitta, Kroll, & Zhang, 2018). We develop a method for using a single streamflow measurement at a site in conjunction with a network of continuous streamflow gauges to estimate minimum daily mean streamflow (minimum streamflow) for a specified period.…”
mentioning
confidence: 99%