Journal article
Analysing individual recession events: sensitivity of parameter determination to the calculation procedure
Hydrological sciences journal, Vol.61(16), pp.2887-2901
12/09/2016
DOI: 10.1080/02626667.2016.1170940
Abstract
This study assesses the sensitivity to model fitting methods and segment selection of the estimated parameters A and B of the model dQ/dt = −AQ
B
for individual events. We investigated about 750 recession events observed at 25 US Geological Survey gauges in the Iowa and Cedar river basins in the United States, with drainage areas ranging from 7 to 17 000 km
2
. The parameters of these recession events were estimated using three commonly adopted methods and recession segments with different extraction criteria. The results showed that the variations of the parameter estimates for the same recession event were comparable to the variations of parameters between different events due to using different model fitting methods and recession segments. This raises cautions for comparative analysis of individual recessions. The result also implies that the nonlinear direct fitting method is the most robust among the three model fitting methods compared.
EDITOR Z.W. Kundzewicz ASSOCIATE EDITOR T. Okruszko
Details
- Title: Subtitle
- Analysing individual recession events: sensitivity of parameter determination to the calculation procedure
- Creators
- Bo Chen - University of IowaWitold Krajewski - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Hydrological sciences journal, Vol.61(16), pp.2887-2901
- Publisher
- Taylor & Francis
- DOI
- 10.1080/02626667.2016.1170940
- ISSN
- 0262-6667
- eISSN
- 2150-3435
- Grant note
- Rose and Joseph Summers Chair endowment China Scholarship Council (10.13039/501100004543)
- Language
- English
- Date published
- 12/09/2016
- Academic Unit
- Civil and Environmental Engineering
- Record Identifier
- 9984197175202771
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