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Relating low-flow characteristics to the base flow recession time constant at partial record stream gauges

Water Resources Research

By:
,
DOI: 10.1029/2006WR005293

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Abstract

Base flow recession information is helpful for regional estimation of low-flow characteristics. However, analyses that exploit such information generally require a continuous record of streamflow at the estimation site to characterize base flow recession. Here we propose a simple method for characterizing base flow recession at low-flow partial record stream gauges (i.e., sites with very few streamflow measurements under low-streamflow conditions), and we use that characterization as the basis for a practical new approach to low-flow regression. In a case study the introduction of a base flow recession time constant, estimated from a single pair of strategically timed streamflow measurements, approximately halves the root-mean-square estimation error relative to that of a conventional drainage area regression. Additional streamflow measurements can be used to reduce the error further.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Relating low-flow characteristics to the base flow recession time constant at partial record stream gauges
Series title:
Water Resources Research
DOI:
10.1029/2006WR005293
Volume
43
Issue:
1
Year Published:
2007
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article