摘要
对１９５９至１９８８年华南后汛期（７－９月）降雨量距平百分率的大尺度变化特征进行了分析，并与前汛期（４－６月）降雨量的情况进行了比较，同时探讨了后汛期降雨量异常的成因。结果表明，华南后汛期雨量存在明显的年际变化，且地区差异显著；后汛期降雨量的异常与热带西太平洋的海水温度、南海地区大气的对流活动以及登陆我国东南沿海地区的热带气旋的频数有关。
Characteristic of large scale variations of percentage of rainfall anomaly during seaond rainy season (from July to September) in South China for the period 1959-1988 is analyzed and compared with those during first rainy season (from April to June). The cause of rainfall anomaly is discussed. Results show that there exists interannual variability in second rainy seaon rainfall in South China and evident difference from one area to others. Anomaly of second rainy season rainfall in South China is associated with water temperature in tropical western Pacific,convection in the atmosphere over the region from the South China to South China Sea and Philippine Sea,and tropical cyclones landing on the south-east coastal region.
出处
《热带气象学报》
CSCD
北大核心
1998年第4期359-363,共5页
Journal of Tropical Meteorology
基金
国家自然科学基金
中国科学院KY85-10项目
国家专项
广东省自然科学基金
关键词
华南
后汛期
降水量
振动
分布
热带气旋
Rainfall during second rainy season Sea temperature Convection in the atmosphere Number of tropical cyclones
