hydraulic head
Error in hydraulic head and gradient time series measurements: a quantitative appraisal
... of head gradients due to wa- ter level measurement error has also been confirmed by oth- ers (Silliman and Mantz, 2000; Devlin and McElwee, 2007), there is currently no single resource that ties together the ...
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Averaging hydraulic head, pressure head, and gravitational head in subsurface hydrology, and implications for averaged fluxes, and hydraulic conductivity
... Often, the dimensions of the megascopic flow field of in- terest are defined by aquifer bounds, horizontal dimensions of agricultural fields or natural areas, and the vertical ex- tent of the soil. These dimensions often ...
10
Measuring methods for groundwater – surface water interactions: a review
... used hydraulic head measurements and solute tracers injected into the stream and the subsurface to iden- tify flow paths between stream channel and aquifer and to calculate exchange rates; Storey et ...used ...
15
Climate and early karstification: What can be learned by models?
... the hydraulic head acting, and the length of the ...known head differences, and Ca-concentrations of the water entering ...stant head conditions have been reported by G ROVES & H OWARD ...
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Argument to use Both Statistical and Graphical Evaluation Techniques in Groundwater Models Assessment
... In Figure -2, the Root Mean Square Errors (RMSEs) for the hydraulic head predictions made by the ANNs using the four different transfer functions are shown at all nine observation points. The RMSEs for the ...
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A partially coupled hydro mechanical analysis of the Bengal Aquifer System under hydrological loading
... groundwater head have re- cently been highlighted in the Bengal Aquifer System, how- ever, driven by terrestrial water loading across the Ganges– Brahmaputra–Meghna ...representing hydraulic head and ...
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Analysis of groundwater flow and stream depletion in L shaped fluvial aquifers
... one head variable and three displacement variables was ...the hydraulic head before aquifer pumping and then the distributions of the hydraulic head and land displacement vector after ...
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Transient flow between aquifers and surface water: analytically derived field scale hydraulic heads and fluxes
... Solutions for linearized parallel and radial flow in aquifers were developed that have sufficient generality to be directly applicable to a wide range of forcings that cover most con- ditions occurring in nature. The ...
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Performance Analysis of Low Head Hydraulic Air Compressor
... The purpose of the present work is to carry out ex- perimental and analytical investigation of low head open type HAC. In the current work, variation of mean di- ameter of air bubbles in the downward flow in the ...
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Reducing the ambiguity of karst aquifer models by pattern matching of flow and transport on catchment scale
... the hydraulic head distribution in the area, spring dis- charge and tracer breakthrough curves simultaneously on catchment ...measured hydraulic heads ...
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Steady state open drainage system for minimizing fire hazard on peat areas
... The parameter required (a s shown in Figure 1) in the drain computation process for peatland are the hydraulic head " midway between drains , h, the hydraulic conductivity of soil, K[r] ...
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Empirical quantification of lacustrine groundwater discharge – different methods and their limitations
... to hydraulic head contour lines and reveal major LGD along the southern ...by hydraulic head contour lines ...decreased hydraulic gradients and the small expansion of the subsurface ...
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Approximate analysis of three dimensional groundwater flow toward a radial collector well in a finite extent unconfined aquifer
... transient hydraulic head distributions due to pumping at a radial collector well (RCW) in a rectangular confined or unconfined aquifer bounded by two parallel streams and no-flow ...The head solution ...
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Geological controls and tidal forcing of submarine groundwater discharge from a confined aquifer in a coastal sand dune system
... (water level in standpipe minus tidal water level) at spring 081 over a 36 hr period corresponded to low to midtide with an average maximum value of approximately 62.5 cm (Figure 4b). A maximum discharge rate from the ...
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Modeling groundwater for the coastal plain region of North Carolina
... the hydraulic head and lead to an increase in saltwater ...simulated hydraulic head results, the effects of dominant wells can be observed ...
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A general analytical model for head response to oscillatory pumping in unconfined aquifers: effects of delayed gravity drainage and initial condition
... sumed hydraulic head fluctuation to be SHM for the OPT at a partially screened well in unconfined ...draulic head variation for the ...that hydraulic head response tends toward SHM at a ...
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Effect of Water Hammering Action on Performance of Hydraulic Ram Pump
... The hydraulic ram pump under test was first checked to have the leak proof suction ...The hydraulic ram pump under test was then run at the normal ...full head under no load ...of hydraulic ...
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Saltwater intrusion vulnerability assessment using AHP-GALDIT model in Kashan plain aquifer as critical aquifer in a semi-arid region
... The Remote Sensing (RS) and Geographic Information System (GIS) methods were used to draw the vulnerability map of the Kashan inland coastal aquifer, based on the Analytic Hierarchy Process (AHP) technique and the ...
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Physical models for classroom teaching in hydrology
... The apparatus described below has been developed to demonstrate an unexpected phenomenon in unsaturated flow, the capillary barrier (Fig. 6) (e.g. Ross, 1990). A plexiglass tank (50 cm × 4 cm × 45 cm), with freely ...
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Design of Experimentation for Developed Hydraulic Ram pump
... Abstract: In this paper, for new developed Hydraulic Ram pump actual experimental data is recorded and executed as per the approach suggested by Hilbert Schenk Jr.also proper implementation of path of ...
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