陈隆勳. 1957. 梅雨结束时期沿东经140度上风场的变化[J]. 气象学报, 28(4):294-302, doi:10.11676/qxxb1957.025
梅雨结束时期沿东经140度上风场的变化
THE VARIATION OF WIND FIELD ALONE 140°E DURING THE LAST STAGE OF MAI-YÜ
投稿时间:1957-07-25  
DOI:10.11676/qxxb1957.025
中文关键词:  
英文关键词:
基金项目:
作者单位
陈隆勳 中国科学院地球物理研究所 
摘要点击次数: 2009
全文下载次数: 1973
中文摘要:
      根据1950—1956年6—8月日本馆野站上空200毫巴的每天测风材料,定出在东亚梅雨结束期的风向、风速转变的奇异性.我们发现馆野上空西风急流的消失和东风的出现,是东亚梅雨结束和盛夏开始时期的一个良好的标记.另外,又作了1954—1956年东经140度各年6—7月每5天平均东西风风速剖面图.我们发现在东亚梅雨结束时期,日本上空的高空西风北撤,太平洋副热带高压脊显著北伸,并且西南太平洋上的颱风便一个接一个侵入东海黄海.这种特徵各年都是相似的,因此可能有一定的预告价值.
英文摘要:
      Based on wind data at 200 mb over Tateno, Japan, for June-august, 1950-1956. We discussed the variation of wind field during the last stage of Mai-yü in eastern Asia. It is found that the northward displacement of westerly Jet stream and the appearrance of easterly wind is a good index of the end of Mai-yii period and the beginning of prevailing summer season.Besides, the 5-days mean cross sections of zonal wind along 140°E for the period of June and July, 1954-1956 are constructed. From them we further found that during the last stage of Mai-yü, with the northward retreat of the upper westerlies over Japan, the subtropical ridge apparantly shifts northward and the typhoons which were limited to the south western part of the Paciffic now begin to invade East sea and Yellow sea one by one. These facts are probably helpful to predication.
HTML   查看全文   查看/发表评论  下载PDF阅读器
分享按钮