中国夏季雨带类型的影响因子分布及预报研究

IMPACT ELEMENT DISTRIBUTION AND PREDICTION OF SUMMER RAIN BELT TYPES IN CHINA

应用方差分析的方法，利用１９５１～１９９５年前期（１～４月）北半球５００ｈＰａ、１０００ｈＰａ高度场，１０００～５００ｈＰａ厚度场，及太平洋海温场的资料，研究了对中国夏季（６～８月）雨带类型变化影响较大的大气环流场、厚度场和海温场的区域分布，并在此基础上利用逐步判别的方法建立了中国夏季雨带类型的判别方程，探讨了入选因子的物理意义．

y using variance analysis method, the regional distributions of the atmosphere general circulation field, the thickness field and the sea surface temperature field which affect the summer rain belt types significantly were studied with the related data of the 500 hPa and 1000 hPa height fields, the 1000～500 hPa thickness field of the Northern Hemisphere, and those of the Pacific sea surface temperature field. Then discriminate equations of rain belt types in China were established with the step discriminate method and the physical behaviour of the selected elements was also discussed.