摘要
根据Ｅ１Ｎｉｎｏ期间热带大气状态的异常特征，确定了在简单大气动力模式中描写海温异常的参数化方法。然后利用斜压半地转两层模式从动力学上分析研究了Ｅ１Ｎｉｎｏ对热带大气低频波的影响。理论分析同有关热带大气季节内振荡的资料分析结果完全一致，Ｅ１Ｎｉｎｏ事件使热带大气季节内振荡减弱。
Based on the anomalous characteristics of the atmospheric state in the tropics in E1 Nino events,a parameterization of the SST anomalies used in simple atmospheric model is proposed.Then,the influence of the EI Nino evernts on the low-frequency waves in the tropical atmosphere is studied using a baroclinic semi-geostrophic two-level model.The theoretical results are consistent with the data analyses in relation to intraseasonal oscillation in the tropical atmosphere. EI Nino evens will reduceintraseasonal oscillation in the tropical atmosphere.
出处
《大气科学》
CSCD
北大核心
1996年第2期159-168,共10页
Chinese Journal of Atmospheric Sciences
基金
国家基础性研究重大关键项目
关键词
热带
大气
季节振荡
埃尔尼诺
动力学
El Nino intraseasonal oscillation tropical atmosphere
