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| Titel |
Catchments as simple dynamical systems: A case study on methods and data requirements for parameter identification |
| VerfasserIn |
Lieke Melsen, Adriaan Teuling, Sonja van Berkum, Paul Torfs, Remko Uijlenhoet |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250087836
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| Publikation (Nr.) |
 EGU/EGU2014-1894.pdf |
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| Zusammenfassung |
| In many rainfall-runoff models at least some calibration of model parameters has to take
place. Especially for ungauged or poorly gauged basins this can be problematic, because
there is little or no data available for calibration. A possible solution to overcome the
problems caused by data scarcity is to set up a measurement campaign for a short time
period. With the employed approach based on the theory of Kirchner (2009), a
model was developed and applied to the Rietholzbach catchment in Switzerland
(Teuling et al., 2010, Seneviratne et al., 2012), with only two parameters. These two
parameters describe a unique storage-discharge relation. The model is constructed
such that the parameters can be determined not only with automatic calibration,
but also by recession analysis and a priori from Boussinesq theory. The automatic
calibration and the recession analysis have been fed with different selections of the
full data record as well as with the full data record itself. For Boussinesq theory,
catchment characteristics were given as required input. In the end, a comparison of
the performance of the three different methods was made, and a comparison on
the amount of data that is required by each of the three parameter identification
methods.
Melsen, L.A., Teuling, A.J., van Berkum, S.W., Torfs, P.J.J.F., Uijlenhoet, R. (2013)
Catchments as simple dynamical systems: A case study on methods and data requirements for
parameter identification, Water Resour. Res., under review
References
Kirchner, J.W. (2009), Catchments as simple dynamical systems: Catchment characterization,
rainfall-runoff modeling, and doing hydrology backward, Water Resour. Res. 45:W02429.
Seneviratne, S.I., I. Lehner, J. Gurtz, A.J. Teuling, H Lang, U. Moser, D. Grebner, L. Menzel,
K. Schro, T. Vitvar, and M. Zappa (2012), Swiss prealpine Rietholzbach research catchment
and lysimeter: 32 year time series and 2003 drought event, Water Resour. Res.
48:W06526.
Teuling, A. J., I. Lehner, J. W. Kirchner, and S. I. Seneviratne (2010), Catchments as simple
dynamical systems: Experience from a Swiss prealpine catchment, Water Resour. Res. 46:
W10502. |
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