Windsurfing

Spill sections are sections in flowing waters where, due to hydropower use, unnaturally rapid changes in the flow rate occur. At times of higher electricity demand more water is processed here in the power plant, the outflow from the power plant and thus in the section below the power plant is usually higher than the inflow into the storage space. The water level in the storage space drops, in the distance below there is a spill. At times of lower power consumption, the ratios are exactly the opposite, one speaks of the Sunk. This so-called swelling operation, depending on the size (shwall-sunk ratio) and the speed and frequency of the flow change, has more or less negative effects on the ecological state of the flowing water. The data level corresponds to the National Water Management Plan (NGP) 2015 and will be updated after the publication of the NGP 2021.溢泄段是指天然河流水域中因水电开发导致流速发生非自然快速变化的河段。当电力需求较高时，电厂会加大过水流量，此时电厂的下泄水量及电厂下游河段的水量通常高于蓄水空间的来水量，蓄水空间的水位随之下降，下游区域则会出现溢泄现象。当电力需求较低时，上述水量比例恰好相反，此种工况被称为Sunk工况。这种被称为调峰运行的作业模式，其生态影响程度取决于流量变化的幅度（shwall-sunk比）、变化速率与发生频率，会对天然流水的生态状态造成不同程度的负面影响。本数据集的版本对应《2015年国家水管理计划（National Water Management Plan, NGP）》，并将在NGP 2021发布后完成更新。