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Regional scale solute transport modelling of a Permo-Trissic sandstone aquifer

机译:二叠系-三叠系砂岩含水层的区域尺度溶质运移模拟

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A previous study completed upon the Lower Mersey Basin Permo-Triassic Sandstone Aquifer of England gathered a substantial amount of hydrochemical data. Analysis of these data suggested that groundwater flow rates and directions within the aquifer system could be qualitatively deduced from the regional hydrochemical distribution. This study describes an attempt to develop that concept into a quantitative description of the regional hydrochemistry, linking the aquifer flow history to the observed present day hydrochemical distribution. To achieve this goal a three dimensional regional groundwater flow model has been developed. The results of the model show that the flow system is consistent with the gross features of the hydrochemical distributions, such as saline water ingress distances, modern recharge water distributions, and the occurrence of old saline groundwater (with the longest residence times). Work continues with particle tracking, reactive transport flor path modelling and explicit representation of each sampled well.
机译:先前对英格兰下默西盆地二叠系-三叠纪砂岩含水层进行的一项研究完成了大量的水化学数据。对这些数据的分析表明,可以从区域水化学分布定性地推定含水层系统内的地下水流速和方向。这项研究描述了将这一概念发展为对区域水化学的定量描述的尝试,将含水层的流动历史与当前观察到的当今水化学分布联系起来。为了实现这一目标,开发了三维区域地下水流模型。该模型的结果表明,该流动系统与水化学分布的总体特征相一致,例如盐水进入距离,现代补给水分布和旧盐水的出现(停留时间最长)。继续进行粒子跟踪,反应性运输弗洛姆路径建模以及每个采样孔的显式表示。

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