Using tree ring data as a proxy for transpiration to reduce predictive uncertainty of a model simulating groundwater–surface water–vegetation interactions

Schilling, Oliver S.; Doherty, John; Kinzelbach, Wolfgang; Wang, H; Yang, Peng; Brunner, Philip

doi:10.1016/j.jhydrol.2014.08.063

Cited by 61 publications

(54 citation statements)

References 30 publications

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“…Good agreement has been found with measured data and literature results, with the advantages of the diffusive model related to computational efficiency and robustness previously discussed in the Introduction. These advantages become more and more important along with the complexity of the source terms estimated in the continuity equations, according to actual hydrologic transformation and soil interactions [29].…”

Section: Resultsmentioning

confidence: 99%

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The FLO Diffusive 1D-2D Model for Simulation of River Flooding

Aricò

Filianoti

Sinagra

et al. 2016

Water

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An integrated 1D-2D model for the solution of the diffusive approximation of the shallow water equations, named FLO, is proposed in the present paper. Governing equations are solved using the MArching in Space and Time (MAST) approach. The 2D floodplain domain is discretized using a triangular mesh, and standard river sections are used for modeling 1D flow inside the section width occurring with low or standard discharges. 1D elements, inside the 1D domain, are quadrilaterals bounded by the trace of two consecutive sections and by the sides connecting their extreme points. The water level is assumed to vary linearly inside each quadrilateral along the flow direction, but to remain constant along the direction normal to the flow. The computational cell can share zero, one or two nodes with triangles of the 2D domain when lateral coupling occurs and more than two nodes in the case of frontal coupling, if the corresponding section is at one end of the 1D channel. No boundary condition at the transition between the 1D-2D domain has to be solved, and no additional variable has to be introduced. Discontinuities arising between 1D and 2D domains at 1D sections with a top width smaller than the trace of the section are properly solved without any special restriction on the time step.

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Section: Resultsmentioning

confidence: 99%

“…p i is the source term in cell i (e.g., rain). The relation between A i and water level H i has been previously defined in Equations (24)- (29). The outgoing flux Fl out i,j is a function of H i since it depends on water depth in cell i, as explained in the following Equations (32) and (33).…”

Section: Solution Of the Prediction Stepmentioning

confidence: 99%

The FLO Diffusive 1D-2D Model for Simulation of River Flooding

Aricò

Filianoti

Sinagra

et al. 2016

Water

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“…Therefore, traditional approaches for estimating hydraulic parameters based on the field monitoring of hydrological conditions in stream-aquifer systems require systematic observations of the potential development of unsaturated zones beneath the streambed and the thermal regime of surface/subsurface flow. Moreover, as indicated by Brunner et al (2012) and Schilling et al (2014), traditional observations of hydraulic heads or river stages are insufficient in inverse problem solutions for estimating hydraulic parameters. Accordingly, a fully coupled, physically based 3-D numerical model that solves for flow and heat transport through saturated-unsaturated porous media (Anderson, 2005) should be implemented for reducing the uncertainty in parameter estimations (Brunner et al, 2012) using the combined pressure and temperature measurements of the surface water-streambed-aquifer system.…”

Section: Regime Periodmentioning

confidence: 99%

Optimum experimental design of a monitoring network for parameter identification at riverbank well fields

Wang

Pozdniakov

Shestakov

2015

Journal of Hydrology

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Keywords:Groundwater and surface water interactions Riverbank filtration Riverbed clogging Hydraulic conductivity MODFLOW s u m m a r y A steady-state flow regime in riverbank well fields is often violated by fluctuations in river stages and variations in groundwater extraction. In this study, a criterion of quasi-steady flow during filtration processes at riverbank well fields was introduced. Under the assumption of steady-state flow, an analytical approach for determining the key hydraulic parameters (aquifer transmissivity and riverbed filtration resistance) between a stream and a hydraulically connected aquifer during riverbank filtration was presented. An optimal regular observation network (consisting of the locations of monitoring wells and the observation regime), which is based on the model-oriented approach using an example of a riverbank well field near the Kuybyshev Reservoir, Russia, was designed to minimise the uncertainty in the estimates of hydraulic parameters. The analyses showed that the initial recession in the surface water levels for the simplest constant groundwater withdrawal patterns can be used to determine the key hydraulic parameters; the error in these estimated parameters was less than 7% or 12%, depending on the designed monitoring network. When comparing the two typical monitoring networks, observation line A-A that passes midway through the water supply wells performed better than observation line B-B that passes through the water supply wells when estimating the hydraulic parameters. The results of this study can be used as a reference for designing and optimising a monitoring network that aims to determine the key hydraulic parameters at riverbank well fields.

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“…Satchithanantham et al [15] reported that 92% of the water used for potato cultivation in southern Manitoba was from shallow groundwater. From their study on the interactions between groundwater, surface water, and riparian vegetation at the lower Tarim River in northwest China, Schilling et al [16] reported an inverse linear relationship of tree ring growth to the depth to groundwater.…”

Section: Introductionmentioning

confidence: 99%

Defining an Ecologically Ideal Shallow Groundwater Depth for Regional Sustainable Management: Conceptual Development and Case Study on the Sanjiang Plain, Northeast China

Wang

Zhang

et al. 2015

Water

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Abstract:The depth and fluctuation of shallow groundwater influence water supply to land surface vegetation. Knowledge of an ecologically ideal depth range of shallow groundwater for a vegetation ecosystem can be crucial for sustainability of regional water resource management and ecological conservation. In this study, we developed a conceptual model that identifies an upper and a lower boundary of shallow groundwater for sustaining present vegetation ecosystems, termed ecologically ideal shallow groundwater depth (EISGD). We then applied the conceptual model to the Sanjiang Plain (10.9 × 10 4 km 2 ) in northeast China in order to gain insights into sustainable shallow groundwater usage in this intensively irrigated agricultural region. Using soil capillary rise, plant rooting depth, extinction depth, and the actual groundwater depth, we identified an upper boundary range of EISGD between 0.5 and 2.8 m and a lower boundary range of EISGD between 2.0 and 14.3 m for different vegetation covers in the Sanjiang Plain. Based on the ranges, we estimated allowable shallow groundwater withdrawal (i.e., without degrading the present vegetation ecosystem) for the region and identified an area of 2.54 × 10 EISGD allowable shallow groundwater withdrawal, thus the plain's northeast region can be considered as having a high allowable pumping capacity. This study demonstrates that application of an EISGD concept can be useful for developing regional management strategies and plans for ecological protection and sustainable groundwater utilization.

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Using tree ring data as a proxy for transpiration to reduce predictive uncertainty of a model simulating groundwater–surface water–vegetation interactions

Cited by 61 publications

References 30 publications

The FLO Diffusive 1D-2D Model for Simulation of River Flooding

The FLO Diffusive 1D-2D Model for Simulation of River Flooding

Optimum experimental design of a monitoring network for parameter identification at riverbank well fields

Defining an Ecologically Ideal Shallow Groundwater Depth for Regional Sustainable Management: Conceptual Development and Case Study on the Sanjiang Plain, Northeast China

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