Seismic stations — Influencing wind turbines

When planning wind turbines, the operation of seismic stations must be taken into account. Studies show that the ground disturbance caused by the operation of the wind turbines via the foundation affects the signal quality of seismic measuring stations. The resulting interference signals overlay seismic signals and impair the observation conditions of earthquake monitoring. The interference signals generated by a wind turbine decrease with the distance from the wind turbine, but can also cause significant disturbances in a few kilometers away. From a technical point of view and against the background of the essential public importance of seismic measurement systems, it is necessary to maintain the widest possible distance between the stations of seismic measuring networks and wind turbines. According to current knowledge, the aim is not to fall below a distance of 5 km. We also recommend identifying the areas intended for wind turbines outside the influence areas of seismic location stations. Areas of influence around stations of the Landesmessnetz Niedersachsen (LBEG) and the cooperation network Lower Saxony (LBEG, BGR) are shown on the NIBIS map server of the LBEG. Further information on seismic stations (commissioning, targets of measurements) can be found in the metadata of the topic “Seismic Stations”. If you have any questions about these stations or general questions about seismic stations in Lower Saxony, please contact the Lower Saxony Earthquake Service (NED). In Lower Saxony, other seismic stations are operated by other operators. For information on this, please refer to the explanations in the metadata of the topic “Seismic Stations” (measuring networks 3, 4, 5 and 6). With specific questions about stations of other operators, please contact them directly.在规划风力涡轮机时，必须将地震台站（seismic stations）的运行纳入考量范畴。研究表明，风力涡轮机运行过程中通过基础引发的地面扰动，会对地震测量台站（seismic measuring stations）的信号质量造成负面影响。由此产生的干扰信号会与天然地震信号相互叠加，削弱地震监测的观测条件。单台风力涡轮机产生的干扰信号强度随与涡轮机的距离增加而衰减，但即便在数公里开外，仍可能造成显著干扰。 鉴于地震测量系统具备至关重要的公共服务属性，从技术层面而言，地震监测台网的台站与风力涡轮机之间应保持尽可能大的间距。根据现有认知，二者的最小安全间距不应低于5公里。同时建议将拟规划建设风力涡轮机的区域，划定在地震定位台站（seismic location stations）的影响范围之外。 下萨克森州测量台网（Landesmessnetz Niedersachsen，LBEG）以及下萨克森州合作监测台网（LBEG、BGR）的台站周边影响范围，可在LBEG的NIBIS地图服务器上查询。有关地震台站的更多详细信息（如投用时间、测量目标等），可在"Seismic Stations"（地震台站）主题的元数据中查阅。若您对上述台站有疑问，或有关于下萨克森州境内地震台站的一般性问题，请联系下萨克森州地震服务中心（NED）。 下萨克森州境内还有其他运营商运营的地震台站。相关运营信息请查阅"Seismic Stations"（地震台站）主题元数据中的说明（对应3、4、5、6号监测台网）。若您对其他运营商的台站有具体业务疑问，请直接联系对应运营方。