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Title: | The role of spatial variability of soil moisture for modelling surface runoff generation at the small catchment scale |
Authors: | Bronstert, A.; Bárdossy, A. |
Publishers version: | https://doi.org/10.5194/hess-3-505-1999 |
URI: | https://oa.tib.eu/renate/handle/123456789/5413 https://doi.org/10.34657/4042 |
Issue Date: | 1999 |
Published in: | Hydrology and Earth System Sciences 3 (1999), Nr. 4 |
Journal: | Hydrology and Earth System Sciences |
Volume: | 3 |
Issue: | 4 |
Page Start: | 505 |
Publisher: | Göttingen : Copernicus GmbH |
Abstract: | The effects of spatial variability of soil moisture on surface runoff generation at the hillslope and small catchment scale were studied. The model used is physically based accounting for the relevant hydrological processes during storm runoff periods. A case study investigating the effects on runoff generation in a loessy small catchment is presented. In this study the storm rainfall response was modelled using different distribution patterns of the initial soil moisture content, and where different initial soil moisture fields were generated by using both interpolation methods and stochastic simulation methods. It is shown that spatial variability of pre-event soil moisture results in an increase in runoff production compared to averaged values. It is of particular importance to note the combined organised/stochastic variability features, that is, the superposition of systematic and random features of soil moisture dominate local generation of surface runoff. In general one can say that the stronger the organised heterogeneity is, the more important is an adequate and refined interpolation technique which is capable of accounting for complex spatial trends. The effects of soil moisture variations are of particular importance for storms, where the produced runoff volume is just a small fraction of precipitation. |
Keywords: | catchment; hillslope; runoff; soil moisture; spatial variation |
Type: | article; Text |
Publishing status: | publishedVersion |
DDC: | 550 |
License: | CC BY-NC-SA 2.5 Unported |
Link to license: | https://creativecommons.org/licenses/by-nc-sa/2.5/ |
Appears in Collections: | Umweltwissenschaften |
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Bronstert, A. and A. Bárdossy, 1999. The role of spatial variability of soil moisture for modelling surface runoff generation at the small catchment scale. 1999. Göttingen : Copernicus GmbH
Bronstert, A. and Bárdossy, A. (1999) “The role of spatial variability of soil moisture for modelling surface runoff generation at the small catchment scale.” Göttingen : Copernicus GmbH. doi: https://doi.org/10.5194/hess-3-505-1999.
Bronstert A, Bárdossy A. The role of spatial variability of soil moisture for modelling surface runoff generation at the small catchment scale. Vol. 3. Göttingen : Copernicus GmbH; 1999.
Bronstert, A., & Bárdossy, A. (1999). The role of spatial variability of soil moisture for modelling surface runoff generation at the small catchment scale (Version publishedVersion, Vol. 3). Version publishedVersion, Vol. 3. Göttingen : Copernicus GmbH. https://doi.org/https://doi.org/10.5194/hess-3-505-1999
Bronstert A, Bárdossy A. The role of spatial variability of soil moisture for modelling surface runoff generation at the small catchment scale. 1999;3(4). doi:https://doi.org/10.5194/hess-3-505-1999
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