我国太阳总辐射月总量资料的均一性检验及订正

采用建站在30a以上的月总辐射资料，以相关性最好的月份为代表月份，以经过均一性检验的日照资料为参考序列，用Potter法进行总辐射资料的均一性检验。结果表明，存在1个或2个间断点的测站占总数的58．6％；无间断点的测站占总数的34．3％。出现间断点的年份以20世纪70年代最多，其次是90年代。90年代初全国辐射仪器的换型对辐射资料没有普遍明显的影响。最后用回归法对存在间断点的绝大多数测站进行了均一性订正，订正后辐射和目照的年平均相关系拊兽谝增大平均增大近5％．

Homogeneity Test and Reduction of Monthly Total Solar Radiation over China

The homogeneity test is done for monthly total solar radiation time series over China with Potter method.The results indicate that most series(58.6%) are inhomogenious.The discontinuous points are mainly seen in the 1970s and 1990s.The renewal of radio meters in the early 1990s has no important effect on solar radiation series.The adjustment of the time series with two or more discontinuous points is carried out using regressive method.After adjustment,the correlation coefficient between annual mean solar radiation and sunshine increases by about 5%.