摘要
本文从动力学角度分析讨论了夏季南海至热带西太平洋地区的热力作用和环流分布的变化对东亚副热带地区位势高度场产生的影响。研究表明:这种影响表现为热带地区的热力和环流作用对东亚上空副热带高压的强度和位置变化具有一种遥相关的制约作用,而这种作用过程是通过上述热带地区激发出的天气尺度以上的准定常波列向东亚副热带地区传播来实观的。本文结果对一些天气观测事实作了解释。
The influence on the geopotential height field Over East-Asia subtropical regions, exerted by heat force and circulation patterns in the tropical regions from south china sea to west-pacific in summer, is studied using the method of dynamic analysis.
The results show that a remcte response exist between the heat force, Circulation patterus of the tropical areas and the intensity, position of Subtropical high over East-Asia. This remote response is achieved by the mechanism of large scale slowly varying wave train escited in above-said tropical regions, propagating toward the East-Asia subtropical areas. Some synoptic observation facts have also been, explained with above research results.
出处
《气象科学》
CSCD
北大核心
1993年第4期417-426,共10页
Journal of the Meteorological Sciences
基金
国家自然科学基金资助项目
