澳门近百年气候变化的多时间尺度特征  

MULTIPLE TIME SCALES ANALYSIS OF CLIMATE VARIATION IN Macao DURING THE LAST 100 YEARS

作　　者：冯瑞权[1] 吴池胜[2] 王婷[3] 何夏江[3] 王安宇[2] 刘吉[2] 梁必骐[2] 梁嘉静[1] 

机构地区：[1]澳门地球物理暨气象局 [2]中山大学大气科学系,广东广州510275 [3]广东省气象局,广东广州510080

出　　处：《热带气象学报》2010年第4期452-462,共11页Journal of Tropical Meteorology

摘　　要：对澳门近百年的地表气温和降水等观测资料进行了统计分析和小波变换计算。结果表明,年/季节平均气温和年降雨量等气候变量的变化普遍存在2～5年周期的显著振荡,同时,振荡在时间域上有明显的局部性。年平均气温的周期约为60年的振荡与Atlantic multidecadal oscillation(AMO)密切相关,两者的位相相当一致。季节平均气温的变化存在明显的季节性差异,夏季和冬季分别有周期约为30年和60年的振荡,它们分别与Pacific decadal oscillation(PDO)和AMO的变化显著相关。前汛期降雨量和年蒸发量也有周期为几十年的年代际变化。The multiplite time scale climate changes are studied and calculated with statistical analyses and wavelet transformation on the basis of daily series of observed data over the period 1901-2007 in Macao. The result shows that the statistically significant oscillation with 2-5 year period generally exists in the series of climate variables （e.g. annual mean surface air temperature and precipitation as well as evaporation et al.）, but with obvious locality in time domain. The annum mean surface air temperature variation has a quasi 60-yr period, and the phases of the 60-yr variation nearly consistently match with that of Atlantic multidecadal oscillation （AMO）. The oscillations of seasonal mean surface air temperature in summer and winter have the periods of quasi 30-yr and quasi 60-yr, respectively, and these two periods of oscillations have statistically significant correlation with Pacific decadal oscillation（PDO） and AMO, respectively. The multidecadal variations of first flood period precipitation and annual evaporation are dominated by periods of quasi 30-yr and quasi 50-yr, respectively.

关 键 词：气候学 澳门气候 小波变换 

分 类 号：R467[医药卫生—临床医学]