Methodology and application of combined watershed and ground-water models in Kansas

Sophocleous, Marios; Perkins, Samuel P.

doi:10.1016/s0022-1694(00)00293-6

Cited by 207 publications

(119 citation statements)

References 18 publications

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“…Modelling of surface-groundwater interactions needs knowledge of groundwater modelling, but also a detailed understanding of the exchange processes that occur between the surface and sub-surface domains (Barnett et al, 2012). Surface-groundwater interactions have been investigated in several studies (Hoehn and Scholtis, 2011;Lenahan and Bristow, 2010;Sophocleous and Perkins, 2000;Winter, 1999;Kollet and Maxwell, 2006;Krause et al, 2007;Lamontagne et al, 2005;Liang et al, 2007;Meire et al, 2010;Panday and Huyakorn, 2004;Shlychkov, 2008), but floodplains in arid/semi-arid regions have received considerably less attention (Jolly et al, 2008). One of the major limitations in this regard is lack of high quality observed data (Pilgrim et al, 1988).…”

Section: Figmentioning

confidence: 99%

Impacts of groundwater extraction on salinization risk in a semi-arid floodplain

Alaghmand

Beecham

Hassanli

2013

Nat. Hazards Earth Syst. Sci.

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Abstract. In the lower River Murray in Australia, a combination of a reduction in the frequency, duration and magnitude of natural floods, rising saline water tables in floodplains, and excessive evapotranspiration have led to an irrigationinduced groundwater mound forcing the naturally saline groundwater onto the floodplain. It is during the attenuation phase of floods that these large salt accumulations are likely to be mobilised and discharged into the river. This has been highlighted as the most significant risk in the MurrayDarling Basin and the South Australian Government and catchment management authorities have subsequently developed salt interception schemes (SIS). The aim of these schemes is to reduce the hydraulic gradient that drives the regional saline groundwater towards the River Murray. This paper investigates the interactions between a river (River Murray in South Australia) and a saline semi-arid floodplain (Clark's floodplain) that is significantly influenced by groundwater lowering due to a particular SIS. The results confirm that groundwater extraction maintains a lower water table and a higher amount of fresh river water flux to the saline floodplain aquifer. In terms of salinity, this may lead to less solute stored in the floodplain aquifer. This occurs through three mechanisms, namely extraction of the solute mass from the system, reducing the saline groundwater flux from the highland to the floodplain and changing the floodplain groundwater regime from a losing to a gaining one. It is shown that groundwater extraction is able to remove some of the solute stored in the unsaturated zone and this can mitigate the floodplain salinity risk. A conceptual model of the impact of groundwater extraction on floodplain salinization has been developed.

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Section: Figmentioning

confidence: 99%

Impacts of groundwater extraction on salinization risk in a semi-arid floodplain

Alaghmand

Beecham

Hassanli

2013

Nat. Hazards Earth Syst. Sci.

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“…Groundwater is the primary source of water supply for rural municipalities in the Canadian prairies, and sustains the baseflow of prairie streams that only occasionally receive inputs of overland flow. Numerical groundwater flow models coupled with hydrological land-surface models have been recognized as an effective tool for the sustainable development and management of groundwater resources in many parts of the world (Sophocleous and Perkins, 2000;Lubczynski and Gurwin, 2005, and references therein). Among the recent progresses in Canada is the coupling of a three-dimensional groundwater flow model MODFLOW (McDonald and Harbaugh, 1996) with a land-surface model called Hydrologic Evaluation of Landfill Performance (HELP) by Jyrkama et al (2002) and Scibek and Allen (2006).…”

Section: Introductionmentioning

confidence: 99%

Application of the Versatile Soil Moisture Budget Model to Estimate Evaporation from Prairie Grassland

Jackson¹,

Xu²

2010

Canadian Water Resources Journal

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Coupled hydrological modelling of land surface and groundwater is an effective tool for water resources management. The Versatile Soil Moisture Budget (VSMB) model is a simple landsurface model that has been widely used in the Canadian prairies to simulate soil moisture conditions of cropland. Its algorithm is suitable for coupling with a groundwater model, but VSMB has not been rigorously tested for grassland as such. The accuracy of simulated grassland evaporation was evaluated against three years of field data collected using the eddy-covariance technique near Calgary, Alberta. The current version of VSMB substantially underestimated evaporation. After modifications on growth stage parameters, radiation scheme, the drying curve function representing the ratio of actual to potential evaporation, and soil-column length, simulated evaporation was well within the error margin of observed values. In the semi-arid environment of the test site, simulated evaporation was relatively insensitive to soil water storage parameters but was sensitive to the drying curve function and soil-column length.Résumé : Les modèles hydrologiques couplés des eaux de surface et souterraine sont un outil efficace pour la gestion de ressources hydriques. Le 'bilan universel de l'eau du sol' (BUES) est un modèle pour l'eau de surface qui est couramment utilisé pour simuler les conditions de teneur en eau des sols de terres cultivables dans les prairies canadiennes. L'algorithme du BUES permet de le coupler avec des modèles d'eaux souterraines, mais il n'a pas encore été rigoureusement testé pour les prairies. La précision d'une simulation de l'évaporation pour une prairie a été comparée à des données de terrain acquises par la technique de covariance des tourbillons pendant trois ans sur un site près de Calgary, Alberta. La version courante du BUES sous-estime considérablement l'évaporation. Après des modifications aux paramètres des étapes de croissance, au schéma de radiation, et à la fonction de la courbe d'assèchement (qui représente le rapport d'évaporation actuelle et potentielle), l'évaporation simulée correspondait aux valeurs observées, à l'intérieur des marges d'erreur. Dans l'environnement semi-aride du site testé, l'évaporation simulée dépendait peu des paramètres de rétention d'eau des sols ; elle était plutôt liée à la fonction de la courbe d'assèchement. 188Canadian Water Resources Journal/Revue canadienne des ressources hydriques

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“…However, it turns out to be less feasible to use SWAT to account for a large number of water storages given the computational intensity for the distributed, physically based model with the small scales of measurements (i.e. small scale HRUs) (Sophocleous and Perkins, 2000) as well as the difficulty in obtaining the data for numerous water storages.…”

Section: Zhang Et Al: Integrated Hydrological Modelling Of Small-mentioning

confidence: 99%

Integrated hydrological modelling of small- and medium-sized water storages with application to the upper Fengman Reservoir Basin of China

Zhang

Peng

Chu

et al. 2012

Hydrol. Earth Syst. Sci.

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Abstract. Hydrological simulation in regions with a large number of water storages is difficult due to inaccurate water storage data. To address this issue, this paper presents an improved version of SWAT2005 (Soil and Water Assessment Tool, version 2005) using Landsat, a satellite-based dataset, an empirical storage classification method and some empirical relationships to estimate water storage and release from the various sizes of flow detention and regulation facilities. The SWAT2005 is enhanced by three features: (1) a realistic representation of the relationships between the surface area and volume of each type of water storages, ranging from small-sized flow detention ponds to medium-and large-sized reservoirs with the various flow regulation functions; (2) water balance and transport through a network combining both sequential and parallel streams and storage links; and (3) calibrations for both physical and human interference parameters. Through a real-world watershed case study, it is found that the improved SWAT2005 more accurately models small-and medium-sized storages than the original model in reproducing streamflows in the watershed. The improved SWAT2005 can be an effective tool to assess the impact of water storage on hydrologic processes, which has not been well addressed in the current modelling exercises.

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Methodology and application of combined watershed and ground-water models in Kansas

Cited by 207 publications

References 18 publications

Impacts of groundwater extraction on salinization risk in a semi-arid floodplain

Impacts of groundwater extraction on salinization risk in a semi-arid floodplain

Application of the Versatile Soil Moisture Budget Model to Estimate Evaporation from Prairie Grassland

Integrated hydrological modelling of small- and medium-sized water storages with application to the upper Fengman Reservoir Basin of China

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