G3Dv3.1 030801, isohypses from base Ld van Onderdijke of the Fm van Maldegem

This layer gives the isohypses of the base of the Lid van Onderdijke, as defined in the Geological 3D model of the Flemish subsurface - version 3.1. The Geological 3D model was drawn up in the framework of the management agreement of the Flemish government with VITO, under the name VLAKO, on behalf of the Flemish Environmental Planning Bureau.本图层呈现了弗兰德斯地下地质三维模型（Geological 3D model，版本3.1）中定义的Lid van Onderdijke基底的等海拔等值线（isohypses）。该地质三维模型受弗兰德斯环境规划局（Flemish Environmental Planning Bureau）委托，依托弗兰德斯政府与VITO签订的管理协议框架，以VLAKO为项目名称编制完成。