近百年来广东省3地(广州、汕头、澳门)气温的变化特征

THE VARIATION CHARACTERISTICS FOR TEMPERATURE OF 3 CITIES OF GUANGDONG PROVINCE IN THE PAST ONE HUNDRED YEARS

在对1949年之前广州、汕头、澳门气温资料进行系统整理的基础上,建立了3站近百年气温变化的序列,分析了广东省东南沿海近百年来气温的变化特征.广州、汕头、澳门百年来年均温分别上升了0.61℃、0.62℃、0.43℃,增幅在全球平均范围之内.同我国其他城市主要由冬季增温不同,广东省春季增温幅度最大,其次是冬季.广州、澳门、汕头的增温分别由最高、最低、最高和最低气温共同引起.此外,3站普遍存在20年、12年与5年左右的3个周期.

On the basis of a systematical classification for the temperature data of Guangzhou, Shantou and Macao before 1949, the sequences of temperature variation during the past 100 years for the above three sites were established and the temperature changing features of the southeast coastal area near Guangdong province over the past century were analyzed. The annual average temperature has a rise of 0.612℃,0.62℃,0.43℃ in Guangzhou, Shantou and Macao respectively during the past 100 years, and the increasing range is within the global average scope. The hugest increasing range of temperature in Guangdong province takes place in Spring, and secondly in Winter, which is different from other cities in China, where the rising of temperature happened mainly in Winter. The temperature rise in Guangzhou, Shantou and Macao could be caused by the temperature changing of the highest, the lowest, the highest and the lowest together. Moreover, there existed three circles of 20a, 12a and 5a for the above three cities.