利用ISCCP资料分析青藏高原云气候特征  

Cloud Climatic Characteristics of the Tibetan Plateau from ISCCP Data

作　　者：刘瑞霞[1] 刘玉洁[2] 杜秉玉[1] 

机构地区：[1]南京气象学院电子工程系,江苏南京210044 [2]国家卫星气象中心,北京100081

出　　处：《南京气象学院学报》2002年第2期226-234,共9页Journal of Nanjing Institute of Meteorology

基　　金：国家重点基础研究项目"我国重大气候灾害的形成机理和预测理论研究"( G1 9980 4 0 90 0 )

摘　　要：利用 ISCCP提供的 1 983年 7月— 1 993年 1 2月 3 h一次的月平均卫星总云量资料 ,将整个高原分为 3 9个网格点 ,分析了高原总云量的年、季节、日变化规律及其空间分布特征 ,并根据高原水汽条件和地形动力影响以及环流特征作出一定的科学解释。将 ISCCP总云量与地面观测总云量分布形势作了比较 ,证明了 ISCCP- D2资料的合理性。对总云量与 OLR进行相关分析 ,发现夏季相关好 。The spatial characteristics and yearly,seasonally and daily variation properties of total cloud cover is analyzed in this paper based on every-three-hour mean monthly data of ISCCP from July,1983 to December,1993 over the Tibetan Plateau which is divided into 39 grids.Some scientific explanation are also made for the moisture condition,topographic dynamics and circulation patterns over the Plateau.Comparing the distribution of total cloud cover from ISCCP with that observed from surface stations,the rationality of ISCCP-D2 data is validated.It is concluded that there is a good (poor) correlation in summer (winter) by analyzing the correlation between the total cloud cover and OLR.

关 键 词：青藏高原 总云量 OLR 时空特征 卫星资料 相关分析 夏季 水汽条件 

分 类 号：P426.5[天文地球—大气科学及气象学]