气候变化领域集成服务门户(CCPortal): Ecohydrological particle model based on representative domains

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DOI	10.5194/hess-22-3639-2018
	Ecohydrological particle model based on representative domains
	Jackisch C.; Zehe E.
发表日期	2018
ISSN	1027-5606
起始页码	3639
结束页码	3662
卷号	22 期号:7
英文摘要	Non-uniform infiltration and subsurface flow in structured soils is observed in most natural settings. It arises from imperfect lateral mixing of fast advective flow in structures and diffusive flow in the soil matrix and remains one of the most challenging topics with respect to match observation and modelling of water and solutes at the plot scale. This study extends the fundamental introduction of a space domain random walk of water particles as an alternative approach to the Richards equation for diffusive flow (Zehe and Jackisch 2016) to a stochastic-physical model framework simulating soil water flow in a representative, structured soil domain. The central objective of the proposed model is the simulation of non-uniform flow fingerprints in different ecohydrological settings and antecedent states by making maximum use of field observables for parameterisation. Avoiding non-observable parameters for macropore-matrix exchange, an energy-balance approach to govern film flow in representative flow paths is employed. We present the echoRD model (ecohydrological particle model based on representative domains) and a series of application test cases. The model proves to be a powerful alternative to existing dual-domain models, driven by experimental data and with self-controlled, dynamic macropore-matrix exchange from the topologically semi-explicitly defined structures. © 2018 Author(s).
语种	英语
scopus关键词	Flow of water; Soil moisture; Stochastic systems; Topology; Dual domain model; Non-uniform flows; Physical model; Richards Equation; Soil water flows; Structured soil; Subsurface Flow; Water particles; Stochastic models; advection-diffusion equation; algorithm; ecohydrology; energy balance; flow pattern; infiltration; model; parameterization; Richards equation; simulation; soil structure; soil water; subsurface flow; water flow
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159982
作者单位	Jackisch, C., Karlsruhe Institute of Technology KIT, Institute of Water Resources and River Basin Management, Department of Hydrology, Kaiserstr. 12, Karlsruhe, 76131, Germany; Zehe, E., Karlsruhe Institute of Technology KIT, Institute of Water Resources and River Basin Management, Department of Hydrology, Kaiserstr. 12, Karlsruhe, 76131, Germany
推荐引用方式 GB/T 7714	Jackisch C.,Zehe E.. Ecohydrological particle model based on representative domains[J],2018,22(7).
APA	Jackisch C.,&Zehe E..(2018).Ecohydrological particle model based on representative domains.Hydrology and Earth System Sciences,22(7).
MLA	Jackisch C.,et al."Ecohydrological particle model based on representative domains".Hydrology and Earth System Sciences 22.7(2018).