章基嘉,周顺泰. 1988. “六月突变”中的波纬相互作用[J]. 气象学报, 46(1):1-8, doi:10.11676/qxxb1988.001
“六月突变”中的波纬相互作用
THE INTERACTION BETWEEN DISTURBANCE AND ZONAL MEAN FLOW IN “JUNE SUDDEN CHANGE”
投稿时间:1984-10-31  修订日期:1985-09-10
DOI:10.11676/qxxb1988.001
中文关键词:  
英文关键词:
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作者单位
章基嘉 国家气象局 
周顺泰 南京气象学院 
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中文摘要:
      本文应用EP理论及其诊断方法对1982年初夏北半球大气环流季节性突变过程中扰动和纬向气流相互作用的动力机制进行了分析和讨论,指出副热带急流的北跳与中纬度扰动能量向副热带对流层顶的增强输送紧密相关,而这种输送的方向是受纬向气流结构制约着的;但在此期间,纬向气流变化对扰动输送的响应十分迅速显著,就环流的突变性来讲,扰动的强迫作用是关键的。
英文摘要:
      Using Eliassen-Palm theory and its diagnostic method, in this paper, we analyzed and discussed the dynamical mechanism of the interaction between disturbance and zonal mean flow in the sudden change of the general circulation in the Northern Hemisphere in early summer of 1982, indicating that the northward jump of subtropic jet stream is closely related to the enhanced transport of mid-latitude disturbance energy to the subtropic tropopause. However,the direction of the transport is conditioned by the structure of zonal mean flow. During this episode, the response of the change of zonal mean flow to the disturbance transport is very quick and evident. As to the suddenness of the change of the circulation, the role of the disturbance forcing is critical.
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