Source cadastre — Sources in NRW (reference database) — WFS

This service represents all sources in the source cadastre of North Rhine-Westphalia, independently managed by five institutions, or their sampling points based on the country’s water stationing map (gsk3c). The attribute table provides information about the number, location and data holders of all objects displayed within a source area and shows the reference source. Sources from Geobasis NRW — i.e. from the state survey — are always reference sources. All objects captured in a radius of 10 m around the reference source are merged under a source NRW_ID. Overlapping radii are combined into a larger contiguous source area. If there is no reference source of Geobasis NRW in an area, the source closest to the area centre of gravity represents the reference source.本服务涵盖北莱茵-威斯特伐利亚州水源登记册中由五家机构独立管理的全部水源，以及基于该国水文站位图（gsk3c）生成的相应采样点位。其属性表可提供源区域内所有展示对象的数量、位置及数据持有方信息，并标注对应的参考源。源自Geobasis NRW（即州级测绘数据源）的水源始终作为参考源。以参考源为中心、半径10米范围内采集的所有对象，将被合并至同一NRW_ID源标识下；重叠的半径范围将被整合为更大的连续源区域。若某区域内不存在Geobasis NRW参考源，则选取距离该区域重心最近的水源作为参考源。