基于非一致性的水文频率分析  

The Non-consistency Based Hydrological Frequency Analysis

作　　者：童显超 TONG Xian-chao(Huaneng Lancang River Hydropower Co., Ltd., Kunming 650214, Yunnan, China)

机构地区：[1]华能澜沧江水电股份有限公司,云南昆明650214

出　　处：《云南水力发电》2017年第3期14-16,共3页Yunnan Water Power

摘　　要：应用随机水文学中水文序列确定性成分检验的方法对宜昌站年最小日流量序列进行了非一致分析,并且根据水文序列分解合成的方法对该序列进行还原/还现处理,对三种情形下的序列进行频率计算。结果表明宜昌站年最小日流量序列在1932年发生跳跃变化,导致序列的均值与离差系数发生变异。Using the hydrological sequence deterministic components testing method in the random hydrology,the paper conducted the non-consistency analysis of the yearly minimum daily flow sequences at Yichang Hydrological station,gave reduction/restoration processing to the sequences according to the hydrological sequence decomposition and synthesis method and carried out the frequency calculation of the sequences under three conditions.The results show that the yearly minimum daily fl ow at Yichang hydrological station changed by leaps and bounds in1932,causing variation of both mean value and deviation coeffi cient of the sequences.

关 键 词：随机水文学 非一致性 水文频率计算 还原/还现 

分 类 号：P333[天文地球—水文科学]