Articles | Volume 27, issue 2
Technical note
24 Jan 2023
Technical note |  | 24 Jan 2023

Technical note: How physically based is hydrograph separation by recursive digital filtering?

Klaus Eckhardt

Related subject area

Subject: Catchment hydrology | Techniques and Approaches: Modelling approaches
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Cited articles

Barlow, P. M., McHugh, A. R., Kiang, J. E., Zhai, T., Hummel, P., Duda, P., and Hinz, S.: U. S. Geological Survey Hydrologic Toolbox – A graphical and mapping interface for analysis of hydrologic data: U.S. Geological Survey Techniques and Methods, book 4, chap. D3, 23 pp.,, 2022. 
Blume, T., Zehe, E., and Bronstert, A.: Rainfall-runoff response, event-based runoff coefficients and hydrograph separation, Hydrolog. Sci. J., 52, 843–862,, 2007. 
Boughton, W. C.: A hydrograph-based model for estimating the water yield of ungauged catchments, in: Hydrology and Water Resources Symposium, Institution of Engineers, Australia, Newcastle, 30 June–2 July 1993, 317–324, 1993. 
Cartwright, I., Gilfedder, B., and Hofmann, H.: Contrasts between estimates of baseflow help discern multiple sources of water contributing to rivers, Hydrol. Earth Syst. Sci., 18, 15–30,, 2014. 
Chapman, T. G..: Comment on 'Evaluation of automated techniques for base flow and recession analyses' by R. J. Nathan and T. A. McMahon, Water Resour. Res., 27, 1783–1784,, 1991. 
Short summary
An important hydrological issue is to identify components of streamflow that react to precipitation with different degrees of attenuation and delay. From the multitude of methods that have been developed for this so-called hydrograph separation, a specific, frequently used one is singled out here. It is shown to be derived from plausible physical principles. This increases confidence in its results.