黄河中下游汛期洪水的分期识别
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摘要
根据黄河中下游降雨洪水泥沙特性,采用成因分析法、数理统计法、模糊聚类法、分形分析法、圆形分布法等多种方法,对黄河中下游主要洪水来源区和控制站降雨、洪水、泥沙影响因子进行了分期点识别。结果表明:黄河中下游汛期洪水泥沙不仅在时间上有较明显的多分期特点,而且在空间上也有显著的分期时间差异。经综合分析,确定潼关、花园口站汛期洪水分期点为9月10日、10月10日,三门峡—花园口区间汛期洪水分期点为8月20日、10月10日。
According to the characteristics of rainfall,flood and sediment in the middle-lower Yellow River,flood season staged in the main sources of flood supply and control station was studied with multi-method,such as causes analysis method,mathematical statistics method,fuzzy set analysis method,fractal analysis method,circle distribution method and the influence factors included rainfall,flood and sediment.The results show that there is an obviously flood,sediment multi-stage temporal and spatial characteristics in the middle and lower Yellow River. Through comprehensive analysis,it determines that the flood season staged points of Tongguan and Huayuankou stations are September10 and October 10 respectively; and the flood season staged points of Sanmenxia-Huayuankou reach are August 20 and October 10 respectively.
According to the characteristics of rainfall,flood and sediment in the middle-lower Yellow River,flood season staged in the main sources of flood supply and control station was studied with multi-method,such as causes analysis method,mathematical statistics method,fuzzy set analysis method,fractal analysis method,circle distribution method and the influence factors included rainfall,flood and sediment.The results show that there is an obviously flood,sediment multi-stage temporal and spatial characteristics in the middle and lower Yellow River. Through comprehensive analysis,it determines that the flood season staged points of Tongguan and Huayuankou stations are September10 and October 10 respectively; and the flood season staged points of Sanmenxia-Huayuankou reach are August 20 and October 10 respectively.
引文
[1]侯玉,吴伯贤,郑国权.分形理论用于洪水分期的初步探讨[J].水科学进展,1999,10(2):140-143.
[2]方彬,郭生练,郭富强,等.汛期分期的圆形分布法研究[J].水文,2007,27(5):7-11.
[3]方彬,郭生练,刘攀,等.分期设计洪水研究进展和评价[J].水力发电,2007,33(7):71-75.
[4]高治定,李文家,李海荣,等.黄河流域暴雨洪水与环境变化影响研究[M].郑州:黄河水利出版社,2002:64-143,200-210.
[2]方彬,郭生练,郭富强,等.汛期分期的圆形分布法研究[J].水文,2007,27(5):7-11.
[3]方彬,郭生练,刘攀,等.分期设计洪水研究进展和评价[J].水力发电,2007,33(7):71-75.
[4]高治定,李文家,李海荣,等.黄河流域暴雨洪水与环境变化影响研究[M].郑州:黄河水利出版社,2002:64-143,200-210.