Surface Water Interaction Modelling Using Visual MODFLOW and GIS

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PHYLARESModel setup / ch.6__________________________________________________________________________________________43Table 6. 5The ground-water model recharge and the annual recharge rate per zone.Recharge raterecharge m 3 /yZone Area (m 2 ) (m/y)1 10775 0.161 1734.7752 69100 0.199 13750.93 601900 0.25 1504754 1239350 0.289 358172.25 769825 0.318 244804.46 9050 0.351 3176.55Figure 6. 10Reclassified recharge zones and their values6.2.2 RiverRiver stage, river bed bottom elevation and conductance values were assigned to the riverboundary condition in the model. River leakage entering the groundwater system of the modeldomain amounts to 17% of the total input.______________________________________________________________________________________Groundwater – Surface water interaction modeling using visual MODFLOW and GIS
PHYLARESModel setup / ch.6__________________________________________________________________________________________446.2.3 Constant Head boundaryConstant head boundary input has the highest share and the values were taken from the values ofa model for the whole Nete Catchment (Figure 6.11). The constant head values were assignedonly to the cells at the model boundary. Constant head boundary contributes 66% of the input.Constant head boundary (m)Figure 6. 11Head values of layer 1 used for constant head boundary.6.3 Output from the modelConstant head boundary, river leakage, drains and wells constitute the means of groundwateroutput. Constant head consists of 11% of output, and river leakage consists 3% of the output.Groundwater discharge due to pumping through wells is the other means of output. There arethree pumping wells in the model domain. Pumping through these wells represents 1% ofgroundwater discharge. The steady-state model uses three pumping wells (Figure 6.12 and Table6.6). Pumping data was input to Visual MODFLOW manually. The required data were:• Well Name• Easting (X)______________________________________________________________________________________Groundwater – Surface water interaction modeling using visual MODFLOW and GIS
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Page 8 and 9: PHYLARESIntroduction / ch.1________
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Page 18 and 19: PHYLARESInteraction of Groundwater
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Page 60 and 61: PHYLARESResults and Discussion / ch
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Surface Water Interaction Modelling Using Visual MODFLOW and GIS

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