the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
On the effectiveness of recession analysis methods for capturing the characteristic storage-discharge relation: An intercomparison study
Abstract. Storage-discharge (S-Q) relations are widely used to derive watershed properties and predict streamflow responses. These relations are often obtained using different recession analysis methods, which vary in recession period identification criteria and Q vs. −dQ/dt fitting scheme. Although previous studies have indicated that different recession analysis methods can result in significantly different S-Q relations, several challenges remain regarding the evaluation of relative effectiveness of these methods in obtaining the characteristic S-Q relation. Here we demonstrated these challenges and presented a new control setup
based experimental approach to compare four recession analysis methods. Results indicated that irregular binning and event-based methods show superior performance at obtaining the characteristic S-Q relation and reconstructing streamflow, while lower envelope method performs the worst. Notably, accuracy of the methods is influenced by the extent of scatter in the ln(−dQ/dt) vs. ln(Q) plot. In addition, the derived S-Q relation was very sensitive to the criteria used for identifying recession periods. These results raise a warning sign against indiscriminate application of recession analysis methods and derived S-Q relations for watershed characterizations or hydrologic simulations. Thorough evaluation of representativeness of the derived S-Q relation should be performed before it is used for hydrologic analysis.
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Interactive discussion
- RC1: 'Reviewer Comment: “On the effectiveness of recession analysis methods for capturing the characteristic storage-discharge relation: An intercomparison study”', Anonymous Referee #1, 19 Mar 2018
- RC2: 'Review of ``On the effectiveness of recession analysis methods ...'' by Chen et al.', Claudia Brauer, 27 Mar 2018
Interactive discussion
- RC1: 'Reviewer Comment: “On the effectiveness of recession analysis methods for capturing the characteristic storage-discharge relation: An intercomparison study”', Anonymous Referee #1, 19 Mar 2018
- RC2: 'Review of ``On the effectiveness of recession analysis methods ...'' by Chen et al.', Claudia Brauer, 27 Mar 2018
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Cited
1 citations as recorded by crossref.
Xing Chen
Mukesh Kumar
Stefano Basso
Marco Marani
This preprint has been withdrawn.
- Preprint
(1389 KB) - Metadata XML
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(401 KB) - BibTeX
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