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为了揭示地下热活动对黄河上游径流变化的影响,并为径流的短期预报与水利调度、防洪抗旱等提供参考依据。利用2002 2011年唐乃亥水文站日平均径流量资料和东亚地震资料,定义了拍涡强度指数,分析了10年间黄河源区的拍涡和唐乃亥水文站日平均径流量的关系。结果表明,黄河源区拍涡出现的时间与唐乃亥水文站日平均径流量距平百分率≥50%的丰水期相对应,丰水期与拍涡出现的时间相差在一周以内,且丰水期平均径流量与拍涡强度指数呈正相关关系,这对黄河上游径流预报有重要的指示意义。
In order to reveal the influence of underground thermal activities on the runoff in the upper reaches of the Yellow River and to provide a reference for short-term runoff forecast, water conservancy regulation and flood control and drought relief. Based on the daily average runoff data and the East Asia seismic data of Tangnaizi Hydrological Station in 2011, the eddy intensity index was defined and the relationship between the beat vortex in the source region of the Yellow River and the mean daily runoff at Tangnaihai hydrological station in 10 years was analyzed. The results show that the time of whirlpool occurrence in the source region of the Yellow River corresponds to the wet season with the average daily runoff anomaly of ≥50% at Tangnaihai Hydrological Station, and the difference between the wet season and the time of the beat vortex is within a week, The average runoff and the eddy intensity index showed a positive correlation, which is an important indicator of runoff forecasting in the upper Yellow River.