上海地区大气稳定度和气象区块的研究  

Study on Atmospheric Stabilities and Meteorological Blocks in Shanghai Area

作　　者：徐家骝[1] 林希坚 周斌斌[1] 

机构地区：[1]上海城市建设学院环境工程系,上海200092

出　　处：《上海环境科学》1994年第2期14-18,13,共6页Shanghai Environmental Sciences

摘　　要：根据1986年6月～1987年5月从上海市区4个站、郊县2个站的气象资料,研究了上海地区的大气稳定度和气象区块。采用3种方法确定稳定度的级别,并进行了比较。应用对风向、风速的聚类分析方法划定气象区块。对两站之间风的相关系数用了3种不同的公式进行计算。利用这些相关系数的结果,同时采用“最短距离法”和“最长距离法”,得到相关树枝图,并由此得出了上海地区的气象区块图。Based on the meteorological data obtained from four stations in urban and two stations in suburban counties in Shanghai, during June 1986 to May 1987, the atmospheric stabilities and meteorological blocks were studied. Three methods for determining stability grades were used and compared with each other as well. The cluster analysis of wing speeds and directions was applied to ascertain the meteorological blocks. Three different formulas were used to calculate the correlation coefficient of wind between two stations. Adopting both the 'nearest neighbour' and 'farther neighbour' methods, and combined with the correlation coefficient results, eight graphs of correlation twigs were made and then the meteorological blocks of Shanghai area were obtained.

关 键 词：大气稳定度 气象区块 聚类分析 

分 类 号：X16[环境科学与工程—环境科学]