摘要
本文利用1972—1980年4—8月平均的500百帕候平均高度场资料研究了我国东部地区雨带北进时的环流变化特征。分析表明,不仅在雨带北进的跳跃期,即使在停滞期环流的季节变化也非常显著。虽然,雨带的季节性北进与环流系统的季节性北移有密切关系,但雨带的跳跃与停滞却主要决定于亚洲1波波槽(相当于环球4波)的西退。
By using the average height field data at 500 hPa from April to August of 1972--1980, studies have been made on the characteristics of the circulation variation during the seasonal northward advance of the rainbelt in Eastern China. Analysis shows that the seasonal variation of thecirculation is very remarkable both during the jump and the stagnationof the northward advance of the rain belt. Although the seasonal north-ward advance of the rain belt is closely related to the seasonal northwardadvance of the circulation system, the jump and stagnation of the beltdepend chiefly upon the westward shift of the trough of Asian wave 1.
出处
《南京气象学院学报》
CSCD
1989年第1期1-10,共10页
Journal of Nanjing Institute of Meteorology
