The paper introduces seven factor of DRASTIC model: Depth of water table, Net recharge, Aquifer media, Soil media, Topography, Impact of Vadose Zone and Hydraulic Conductivity.
Compared with results of aquifer-thermal-conductivity 's-multiple model, results of velocity 's-one-power model show that the drop of pumping temperature is greater and ter is smaller.
速度一次方模型的计算结果较含水层滞止导热系数倍数模型的计算结果的抽水温度降大,热影响范围小。
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While groundwater flows through an unconfined aquifer due to heterogeneity, the vertical average saturated hydraulic conductivity is a function of hydraulic head.