An approach for estimating mean monthly runoff at ungauged sites is presented. Special attention is paid to include effects of local features such as karst and river regulation by reservoirs. The developments introduced conform with hydrostochastic concepts in that simple physical and statistical laws are inherent in the methods used for mapping. Hence, the approach developed here is consistent with the water balance along the river network. The suggested method combines an application of empirical orthogonal functions and an adapted stochastic interpolation scheme to match the runoff data. The observation data are handled in the frame of a hydrological information system. This allows the display of results either in the form of the change in a statistical parameter along the river branches towards the basin outlet or as a map of the variation of the parameters across the basin or region space. The approach is demonstrated for France.
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Research Article|
October 01 2008
Estimating mean monthly runoff at ungauged locations: an application to France
Eric Sauquet;
1Cemagref, Hydrology-Hydraulics Research Unit, 3 bis quai Chauveau CP220, F-69336, Lyon cedex 09, France
E-mail: [email protected]
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Lars Gottschalk;
Lars Gottschalk
2Department of Geosciences, University of Oslo, PO Box 1022, Blindern, N-0315, Oslo, Norway
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Irina Krasovskaia
Irina Krasovskaia
2Department of Geosciences, University of Oslo, PO Box 1022, Blindern, N-0315, Oslo, Norway
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Hydrology Research (2008) 39 (5-6): 403–423.
Article history
Received:
October 08 2007
Accepted:
May 23 2008
Citation
Eric Sauquet, Lars Gottschalk, Irina Krasovskaia; Estimating mean monthly runoff at ungauged locations: an application to France. Hydrology Research 1 October 2008; 39 (5-6): 403–423. doi: https://doi.org/10.2166/nh.2008.331
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