Topographical watersheds of runoff axes on Rennes Métropole

This layer complements the layer of runoff axes on Rennes Métropole (UUID = e0fa5c09-ee44-46ff-a068-b6dada575c9f) by topographic analysis. As part of the runoff study currently being carried out by Rennes Métropole (2023-2025), a first analysis of hydraulic functioning was carried out at the global scale of its territory. On the basis of the forms of the natural terrain, the analysis made it possible to identify the topographic sub-watersheds corresponding to the runoff axes. They make it easy to identify the distribution of feeder areas.本图层通过地形分析，对雷恩都会区（Rennes Métropole，UUID = e0fa5c09-ee44-46ff-a068-b6dada575c9f）的径流轴图层进行了补充完善。 作为雷恩都会区当前（2023-2025年）开展的径流研究的一部分，研究团队已在其辖区全域尺度上完成了首次水文功能分析。 本次分析基于自然地形形态，成功识别出与径流轴相对应的地形子汇水区。 该图层可辅助快速识别补给区的空间分布。