摘要
通过合成分析和相关分析对南海夏季风爆发异常年份前期 0～ 40 0 m深度次表层海温的异常分布进行了讨论 ,发现北太平洋 (1 50°E～ 1 50°W,3 5～ 50°N)区域对季风爆发时间的早晚有着较为持续的影响 ,前冬 1 2 0～ 3 0 0 m深度尤其显著 ,具体表现为当前冬该海域海温偏低时 ,季风爆发偏晚 ,反之偏早 ;并通过定义一个北太平洋热力参数以表征该区域的热力作用 。
The distribution of early day sub-surface sea temperature of 0 to 400 meters(especialy 120 to 300 meters) in abnormal onset years of SCSSM is discussed in terms of composite analysis and correlation method.Results show that the anterior sea temperature in the North Pacific basin(150°E～150°W,35～50°N) has a profound influence on the onset dates of SCSSM.When the sea temperature of previous winter in the basin is lower,the onset date of SCSSM is later,and vice versa.A thermal parameter(I tp) is defined to represent the underlying surface effect over the basin,and it is inferred that the influence of sea temperature anomalies on the onset date of SCSSM can be realized through atmospheric teleconnection.
出处
《南京气象学院学报》
CSCD
北大核心
2002年第3期351-357,共7页
Journal of Nanjing Institute of Meteorology
基金
国家基础研究发展规划项目 G1 9980 4 0 90 0
Part
国家科技部攀登 A项目"南海季风试验研究"
