年最大风速系列的均一性检验与订正应用研究

Study of Homogeneity Tests and Correction Applied to Annual Maximum Wind Speed Data

满足均一性的历史长系列风速数据是设计风速频率分析的基础。选取长乐、安溪、驻马店气象站年最大风速系列做研究对象,采用滑动t、Cramer、M-K、Pettitt及SNHT检验法进行历年最大风速系列的检验和订正。通过多方法对比分析,可在确定非均一的间断点后,采用比值法进行系列订正,并对检验结果和订正结果进行合理性检验。研究认为SNHT法和M-K法适用性较好。

The homogeneous long-term data is the base of the frequency analysis of the design wind speed. According to the long-term speed series of Changle、Anxi and Zhumadian station, A research about homogeneity tests and correction of annual maximum wind speed had been carried out with the detected method of Slide t、Cramer、Mann- Kendall、Pettitt and SNHT. The non-homogeneity break can be identified by the comparative analysis of the multiple methods and the ratio correction had been made for the maximum wind speed data. It is indicated that the detected method of SNHT and Mann-Kendall has a general applicability for the the non-homogeneity break identification and the data correction.