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<br /> <br />0:2237 <br />. <br /> <br />Moore - Wood - 13 <br />Oral - GSA <br /> <br />Resistors are attached to the model at points of <br />discharge to facilitate the simulation of ground-water <br />withdrawal. The independent variables of the hydrologic <br />system such as recharge from applied water, precipitation, <br />and evapotranspiration were programmed in stages to <br />determine the effect of each on the hydrologic system. <br />For example, the first analysis of the model was made <br />by simulated well pumping and observing water-level <br />changes without recharge or evapotranspiration. Water- <br />level change maps were constructed after each variable <br />was added to the model. The changes in water level <br />predicted by the model were then compared with observed <br />changes. Refinements in first estimates of evapotrans- <br />pi~ation and recharge will be made until the predicted <br />changes in water level match the changes measured in <br />the field. <br /> <br />. <br /> <br />. <br /> <br />