Modeling flow and transport in irrigation catchments: 1. Development and testing of subcatchment model

Connell, Luke D.; Jayatilaka, C. J.; Gilfedder, Mat; Mein, Russell G; Vandervaere, Jean‐Pierre

doi:10.1029/2000wr900268

Cited by 10 publications

(4 citation statements)

References 29 publications

(28 reference statements)

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“…Studies quantifying salt mobilisation and transport have used a range of approaches, including drain gauge data (Isidoro et al, 2003;Jolly et al, 2001), models (Connell et al, 2003a) and salt balance methods (Gilfedder et al, 2000;Tanji et al, 1975). These approaches for quantifying salt mobilisation have been applied to a limited number of irrigation regions in Australia, the United States and Spain (Tables 1 and 2).…”

Section: Salt Mobilisation and Transportmentioning

confidence: 99%

Management of salt mobilisation in the irrigated landscape – A review of selected irrigation regions

Duncan¹,

Bethune

Thayalakumaran³

et al. 2008

Journal of Hydrology

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Section: Salt Mobilisation and Transportmentioning

confidence: 99%

Management of salt mobilisation in the irrigated landscape – A review of selected irrigation regions

Duncan¹,

Bethune

Thayalakumaran³

et al. 2008

Journal of Hydrology

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“…A number of analytical solutions exist, mostly based on the Lewis and Milne [1938] integral equation, relating the distance and rate of advance with the rate of infiltration, using various infiltration relationships [ Collis‐George and Freebairn , 1979; Philip , 1966, 1969; Philip and Farrell , 1964]. These equations have been used and trialed in studies such as those of Knight [1980], (F. J. Cook et al, An improved solution for the infiltration‐advance problem in irrigation hydraulics, submitted to Irrigation Science , 2011), Goswami [2007], Connell et al [2001], and Rasmussen [1994]. The solutions, however, assume an infinitely deep water table; therefore recharge is not influenced by shallow or dynamic groundwater conditions.…”

Section: Introductionmentioning

confidence: 99%

Groundwater recharge from overbank floods

Doble

Crosbie

Smerdon

et al. 2012

Water Resources Research

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[1] Overbank flood recharge is increasingly acknowledged as important for estimations of aquifer sustainable yield. The physics of this process in areas with shallow groundwater, however, is not well understood and typically is not included in river or groundwater models. Modeling of the overbank flood recharge process was undertaken using a fully coupled, surface-subsurface flow model to compare the volume of infiltration through a floodplain with varying surface sediment, aquifer, and flood parameters. The infiltration volume was found to increase with the conductance of the clogging layer (represented by a thin veneer of sediments across the floodplain and river bed), flood wave height, peak duration, and aquifer transmissivity and to decrease with increasing water table gradient (positive toward the river). The influence of the flood wave and aquifer hydraulic parameters was more pronounced in systems with sand or loam clogging layers. Irregularities in floodplain elevation had a large effect on infiltration volume. A dimensionless analysis of the flood recharge process identified the factors that limited flood infiltration for each of the modeled scenarios: the clogging layer conductance, unsaturated aquifer storage, or aquifer transmissivity. A dimensionless number F* was used to predict the limiting factor in floodplain systems. An analytical equation was developed to estimate the infiltration volume for catchments where full numerical modeling is not warranted or applicable. Results from the analytical equation compared favorably with recharge modeled using a more complex numerical model.

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“…A number of other process-based models have appeared over the last fifteen years [17,18,38,23,44,43,12,13,24,25,26]. Agreement between process-based models, field data, and continuum models has been the subject of a several studies [40,37,36,21].…”

Section: Introductionmentioning

confidence: 99%

Effects of Dynamic Forcing on Hillslope Water Balance Models

Kees¹,

Band²,

Farthing³

2004

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Recently there has been much interest in scaling water flow and species transport at the continuum level to the watershed. A particularly simple and, therefore, appealing approach is based on the water mass balance at the hillslope scale. Such models require parameterization of closure relations (flux-storage relations) based on field data. In several recent studies, this data was instead generated by steady-state numerical simulations of the hillslope. In this work we focus specifically on closure relations for hillslope water balance models as in previous work, but we use transient numerical solutions of continuum-scale models of the subdomain to generate the data. Our goal is to study the effects of non-equilibrium behavior on time-averaged flux-storage relationships for the hillslope. We show that for simulated hillslopes, the flux-storage relations are multivalued for a wide range of time scales, discuss how this situation arises, and provide some alternative parameterizations of the flux-storage relations.

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Modeling flow and transport in irrigation catchments: 1. Development and testing of subcatchment model

Cited by 10 publications

References 29 publications

Management of salt mobilisation in the irrigated landscape – A review of selected irrigation regions

Management of salt mobilisation in the irrigated landscape – A review of selected irrigation regions

Groundwater recharge from overbank floods

Effects of Dynamic Forcing on Hillslope Water Balance Models

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