Gravitational and capillary soil moisture dynamics for distributed hydrologic models
نویسندگان
چکیده
منابع مشابه
Gravitational and capillary soil moisture dynamics for distributed hydrologic models
Distributed and continuous catchment models are used to simulate water and energy balance and fluxes across varied topography and landscape. The landscape is discretized into computational plan elements at resolutions of 10–10 m, and soil moisture is the hydrologic state variable. At the local scale, the vertical soil moisture dynamics link hydrologic fluxes and provide continuity in time. In c...
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Andrew W. Western1, Rodger B. Grayson1, and Günter Blöschl2 1Cooperative Research Centre for Catchment Hydrology and Centre for Environmental Applied Hydrology, Department of Civil and Environmental Engineering, The University of Melbourne, Victoria 3010, Australia; e-mail: [email protected], [email protected] 2Institut für Hydraulik, Gewässerkunde und Wasserwirtschaft...
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• Soil hydrologic parameters including field saturation, field capacity, initiation of plant water stress and plant extraction limits can be reliably determined from electronic soil moisture sensor records. • Soil profile wetting and drying occurs along a regular continuum of soil moisture following the advance of the wetting from to the effective base of the soil profile. • Frozen soil conditi...
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Low-yielding catchments with ephemeral streams provide a stern test of the capability of conceptual catchment models for predicting the hydrologic response of the natural landscape. Sustained periods of little or no flow mean that the information content of the streamflow time-series for parameter estimation is limited. During periods with no streamflow, such ephemeral catchments also offer no ...
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[1] An accurate description of plant ecology requires an understanding of the interplay between precipitation, infiltration, and evapotranspiration. A simple model for soil moisture dynamics, which does not resolve spatial variations in saturation, facilitates analytical expressions of soil and plant behavior as functions of climate, soil, and vegetation characteristics. Proper application of s...
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ژورنال
عنوان ژورنال: Hydrology and Earth System Sciences
سال: 2015
ISSN: 1607-7938
DOI: 10.5194/hess-19-1857-2015