Similarities in both water and electric current flows allow the relation of hydraulic and geoelectric parameters of porous aquifers. Based on this assumption and the importance of the hydraulic parameters for groundwater analyses, this study aimed to estimate hydraulic conductivity (K) and transmissivity (T) with vertical electrical sounding (VES) in the porous aquifer at the experimental farm of the University of Brasilia, Brazil. VES is a geophysical technique that provides electrical resistivity (ρ, Ω m) and thickness (h) of the subsurface layers. The ρ and h aquifer data, associated with lithology, water table level (WTL), and groundwater electrical resistivity (ρ_w, Ω m), allowed the calculation of complementary geoelectric parameters (formation factor, F, and Dar Zarrouk parameters) and the relation with K and T, determined via slug test. VES data allowed the elaboration of geoelectric models, with mean absolute percentage error (MAPE) below 6% compared to field data, and the identification of the aquifer in each VES station. Significant exponential regression models (R² > 0.5 and p-value < 0.05) showed the possibility of using geoelectric parameters to estimate hydraulic parameters. This study allowed the verification of the applicability of consolidated models and the identification of appropriate empirical relationships for hydrogeological characterization in the Brazilian tropical porous aquifers. The results of this work, besides the rapid sampling and low cost of performing vertical electrical sounding (VES), may justify the use of this geophysical technique for preliminary porous aquifer characterization, especially in regions absent of or with insufficient monitoring wells.

中文翻译：

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垂直电测深（VES）估算多孔含水层中的水力参数

水和电流的相似性允许多孔含水层的水力和地电参数之间的关系。基于此假设以及水力参数对地下水分析的重要性，本研究旨在估算巴西利亚大学实验场中多孔含水层的水力传导率（K）和透射率（T），并采用垂直电测深（VES）。 ， 巴西。VES是一种地球物理技术，可提供地下层的电阻率（ρ，Ωm）和厚度（h）。的ρ和h含水层数据，以岩性，地下水位（WTL），和地下水电阻率（相关ρ_瓦特，Ωm）允许计算补充地电参数（形成因子，F和Dar Zarrouk参数）以及与K和T的关系，该关系通过试验确定。VES数据可以详细描述地电模型，与现场数据相比，平均绝对百分比误差（MAPE）低于6％，并且可以识别每个VES站中的含水层。显着指数回归模型（R ² > 0.5和p值<0.05）显示了使用地电参数估算水力参数的可能性。这项研究可以验证合并模型的适用性，并确定巴西热带多孔含水层中水文地质特征的适当经验关系。除快速采样和执行垂直电测深（VES）的低成本外，这项工作的结果还可以证明使用这种地球物理技术进行初步的多孔含水层表征，尤其是在缺乏或没有监测井的地区。