Modeling Subsurface Hillslope Runoff Dominated by Preferential Flow: One- vs. Two-Dimensional Approximation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F14%3A00219049" target="_blank" >RIV/68407700:21110/14:00219049 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.2136/vzj2013.05.0082" target="_blank" >http://dx.doi.org/10.2136/vzj2013.05.0082</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2136/vzj2013.05.0082" target="_blank" >10.2136/vzj2013.05.0082</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modeling Subsurface Hillslope Runoff Dominated by Preferential Flow: One- vs. Two-Dimensional Approximation

Popis výsledku v původním jazyce

Shallow saturated subsurface flow, frequently observed on hillslopes of headwater catchments in humid temperate climates, often dominates hydrologic responses of the catchments to major rainfall events. Typically, these responses are significantly affected by the presence of preferential flow. In this study, two approaches to modeling hillslope responses to rainstorms, which differ in dimensionality and thus also in the complexity of geometric, material, and boundary conditions, were tested and used onthe hillslope discharge data observed in an experimental trench. In the one-dimensional (1D) approach, 1D variably saturated vertical soil water flow is combined with 1D lateral saturated flow above the soil?bedrock interface. In this approach, verticalflow is modeled by means of a dual-continuum concept involving two coupled Richards? equations (representing flow in the soil matrix and in the preferential pathways), while lateral flow is described by the diffusion wave equation. In the

Název v anglickém jazyce

Modeling Subsurface Hillslope Runoff Dominated by Preferential Flow: One- vs. Two-Dimensional Approximation

Popis výsledku anglicky

Shallow saturated subsurface flow, frequently observed on hillslopes of headwater catchments in humid temperate climates, often dominates hydrologic responses of the catchments to major rainfall events. Typically, these responses are significantly affected by the presence of preferential flow. In this study, two approaches to modeling hillslope responses to rainstorms, which differ in dimensionality and thus also in the complexity of geometric, material, and boundary conditions, were tested and used onthe hillslope discharge data observed in an experimental trench. In the one-dimensional (1D) approach, 1D variably saturated vertical soil water flow is combined with 1D lateral saturated flow above the soil?bedrock interface. In this approach, verticalflow is modeled by means of a dual-continuum concept involving two coupled Richards? equations (representing flow in the soil matrix and in the preferential pathways), while lateral flow is described by the diffusion wave equation. In the

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA205%2F08%2F1174" target="_blank" >GA205/08/1174: Hydrologické toky v systému půda-rostlina-atmosféra</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Vadose Zone Journal

ISSN

1539-1663

e-ISSN

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Svazek periodika

13

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

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Kód UT WoS článku

000343161000003

EID výsledku v databázi Scopus

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