Upscaling for unsaturated flow including connectivity of the soil structure

Insa Neuweiler & Insa Neuweiler
Modelling of flow processes in the unsaturated zone on a large scale requires often upscaling of the flow problem. The soil parameter distribution is mostly not known, so that the upscaled problem is based on a characterization of the soil heterogeneity, which is obtained from local measurements. Effective flow parameters are therefore often derived in a stochastic framework, where the heterogeneity of a field is quantified by its second order stochastic properties (the mean, variance...
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