广东的气候分区

THE CLIMATIC CLASSIFICATION IN GUANGDONG PROVINCE

用广东省４７个测站１９５４－１９９０年各月的平均气温、降水、日照时数的标准化资料分别作按时间点分解的主分量分析，取其前６个主分量作为各测站的气候特征量，用相关系数－重心法作聚类分析，作出各月、全年综合要素的气候分区。结果表明：（１）将广东各月分为有较显著差异的５个区，则冬半年（１０－翌年４月）各月的分区形式较类似且规律性明显，夏半年（５－９月）各月的分区逐月变化明显，且分区形式差别较大。（２）若用６个自然季节的平均气温、降水、日照时数标准化资料分别作主分量分析，各取前３个主分量作为全年气候分区的特征量，则广东全年的气候区可分为东南沿海、西南沿海、西北内陆３个区。

? Monthly mean temperature, precipitation, sunshine hours for the years 1954—1990 in 47 stations over Guangdong Province are used. A principal component analysis and acluster anlysis are applied to classify the climate compositively.The results show:(1) when 5 regions are classified in all months, their patterns are various month by month.The classification patterns of each month in winter half year are more similiar to each other and more regular than that in summer half year.(2) The climatic classification of the year based on the data of natural synoptic seasons in Guangdong could be clustered as Southeast coastal, Southwest coastal , and Northwest inland regions.