大气科学学报2012，Vol.35Issue(3)：342-349,8.
多种方法在年平均风速均一性检验中的效果对比
Comparative analysis of the effects of different methods in homogeneity test on annual mean wind speed
摘要
Abstract
By using the direct homogeneity test （based on the observation data and the t test） and 3 in- direct homogeneity methods （including SNHT, PMTT and PMFT ）, time series of annual mean wind speed at 2 meteorological stations,Tianchang and Susong,from 1957 to 2010,have been tested respec-tively. The results show that station relocation, observational environment change, instruments updating and measurements variation can all influence the homogeneity of the mean wind speed, and the impact of measurements updating is the most prominent factor. Because based on observation data from meteor-ological stations, the results of direct test is more reliable. However, SNHT, PMTT and PMFT are effec-tive in identifying the change-points, but the missing ratio is also of a high degree. Thus, to test mean wind speed homogeneity, if the observation data from meteorological stations are correct and intact, the direct test should be used firstly and then other methods can be used additionally.关键词
风速/均一性/直接检验方法/间接检验方法Key words
wind speed/homogeneity/direct test/indirect test分类
天文与地球科学引用本文复制引用
何冬燕,田红,邓伟涛..多种方法在年平均风速均一性检验中的效果对比[J].大气科学学报,2012,35(3):342-349,8.基金项目
安徽省气象科研项目 （）
淮河流域气象开放研究基金 （）
南京信息工程大学科研基金资助项目 （）
