H3Dv2.1 A1104, Aachen top Side isohypses

This layer gives the isohypes of the A1104 top, as defined in the 3D hydrogeological model of the Flemish substrate – version 2.1. The hydrogeological 3D model was drawn up in the framework of the Flemish Government’s management agreement with VITO, known as VLAKO, on behalf of the Flemish Environmental Agency本图层呈现佛兰德斯基底三维水文地质模型（版本2.1）所定义的A1104顶面等高线（isohypes）。该三维水文地质模型由佛兰德斯政府代表佛兰德斯环境署，与维托（VITO）研究所依照双方名为VLAKO的管理协议框架编制完成。