The hydrogeological characteristics are required for investigating the modelling processes. The transmissivity and hydraulic conductivity values which are obtained from the inverse methods and pumping tests are not representative in the northern part of France where the major aquifer is composed of the chalk deposits. In addition, these methods are costly and time-consuming. In the north of the Paris Basin and by using the magnetic resonance sounding (MRS), the chalk aquifer reveals the vertical distribution of the porosity, the hydraulic conductivity, and the transmissivity. The decay constants of the MRS signal which have been identified from the MRS analysis are considered parameters which control the permeability and the transmissivity values. Five MRS surveys were realized and performed by the electrical resistivity tomography (ERT) aiming to characterize the lithology variation and the thickness of the hydrogeological units. This comparison shows the power of MRS methods of the chalk aquifer in the characterization of the hydrogeological system in the north of France. The water content which is deduced from the MRS highlights a heterogeneous distribution in the aquifer and the water content can reach 35%. Results which are deduced from the pumping test and the MRS are consistent. Indeed, the transmissivity values vary generally between 10⁻³ and 10⁻² m²/s. This comparison shows the utility of the multidisciplinary approaches in the characterization of the chalk system in the north of France.

研究建模过程需要水文地质特征。通过反演方法和抽水试验获得的透射率和水力传导率值在法国北部地区不具有代表性，那里的主要含水层由白垩沉积物组成。另外，这些方法既昂贵又费时。在巴黎盆地北部，利用磁共振测深（MRS），白垩含水层揭示了孔隙度，水力传导率和透射率的垂直分布。从MRS分析中识别出的MRS信号的衰减常数视为控制磁导率和透射率值的参数。电阻率层析成像（ERT）实现并进行了五次MRS测量，目的是表征岩性变化和水文地质单元的厚度。这种比较显示了法国含水层地质系统表征中粉笔含水层的MRS方法的强大功能。从MRS推算出的含水量突显了含水层中的不均匀分布，含水量可达到35％。从抽水试验和MRS得出的结果是一致的。实际上，透射率值通常在10之间变化 从MRS推算出的含水量突显了含水层中的不均匀分布，含水量可达到35％。从抽水试验和MRS得出的结果是一致的。实际上，透射率值通常在10之间变化 从MRS推算出的含水量突显了含水层中的不均匀分布，含水量可达到35％。从抽水试验和MRS得出的结果是一致的。实际上，透射率值通常在10之间变化^-3和10 ^-2 m ² / s。这种比较表明，在法国北部的粉笔体系的表征中，多学科方法的效用。