宁夏年气温资料的均一性检验研究  

The Study of Homogeneity Test on the Annual Mean Temperature in Ningxia

作　　者：张智[1,2] 林莉 梁培[1] 陈玉华[1] 

机构地区：[1]宁夏气象信息中心,银川750002 [2]宁夏气象防灾减灾重点实验室

出　　处：《气象》2009年第10期79-83,共5页Meteorological Monthly

基　　金：国家科技部"气象科学数据共享中心(2005DKA31700-06-28)";宁夏气象局"宁夏气温资料均一性检验方法的研究"共同资助

摘　　要：选取宁夏24个气象站从建站到2006年年平均气温资料,采用Potter检验法对年气温资料进行均一性检验。结果表明:宁夏有9个测站年气温资料存在间断点,有15个测站无间断点;间断点主要集中在2001—2006年,共有7个,占总数的77.8%,其中有6个测站是因为站址迁移造成的;20世纪50年代测站的迁移最频繁,迁移次数不是造成年平均气温序列非均一性的直接原因,迁移前后测站环境的显著改变是主要因素,测站未迁移但测站环境城镇化变化也是因素之一。By the use of annual mean temperature data of 24 meteorological stations in Ning xia, the homogeneity test was studied for annual mean temperature time series with the Po tter method. The results showed that among the 24 series, the 9 series were inhomoge neous, and the other 15 series were homogeneous. The discontinuous points were mainly found in the years 2001-2 006 an d altogether had 7 discontinuous points （77.8%）, in which 6 inhomogeneous series were caused by r elocated stations. Stations were relocated frequently in the 1950s, but the ti m es of relocated station were not the main causation of inhomogeneous series, a nd the environment changes of relocated station were the main factors. Moreover, the environment townish change of a station was also one of the factors, even though the station does not move.

关 键 词：年平均气温 均一性 Potter法 环境变化 

分 类 号：P467[天文地球—大气科学及气象学] O631.1[理学—高分子化学]