Map visualisation service (WMS) of the dataset: One-off entity causing the risk of PPRN field movements in the Clain Valley Department of Vienna

The origin of risk characterises the real-world entity which, through its presence, represents a potential risk. This origin may be characterised by a name and, in some cases, a geographical object locating the actual entity causing the risk. The location of the entity and the knowledge of the hazardous phenomenon are used to define the risk pools, the areas exposed to the risks that underpin the RPP. For PPRNs, this entity may, for example, correspond to a river, a geologically unstable area.风险源指的是现实世界中因自身存在而构成潜在风险的实体。该风险源可通过名称进行表征，部分场景下还可借助定位该风险实际诱发实体的地理对象来补充其特征描述。 实体的空间位置及危险现象的相关认知，可用于划定风险池——即暴露于支撑RPP的各类风险影响范围内的区域。 以PPRN为例，此类实体可对应为河流、地质不稳定区域等。