| 1958年8月4—12日西太平洋副热带高压减退过程的研究 |
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| 引用本文： | 袁恩国,谭同量,李云林.1958年8月4—12日西太平洋副热带高压减退过程的研究[J].气象学报,1964,34(2):162-173. |
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| 作者姓名： | 袁恩国 谭同量 李云林 |
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| 作者单位： | 湖北省气象科学研究所
(袁恩国，谭同量)，湖北省气象科学研究所(李云林) |
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| 摘 要： | 本文对1958年8月4—12日中国大陆上西太平洋副热带高压减退过程作了分析。结果指出:它的减退是从200—400毫巴层次中开始,然后向上向下传递,最大变化发生在200毫巴层上,500毫巴以下高度场的变化是很小的,这是由于对流层顶附近的动力因子所决定的。文中还指出,大型环流发展所引起的经圈环流和东风急流显著的变动,是造成高压减退很主要的因素。本文还进一步分析了东风急流减退的物理机制和高压本身结构的演变特点,以及这种变化对高压减退所起的作用。
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| 收稿时间： | 1962/11/2 0:00:00 |
| 修稿时间： | 1/1/1964 12:00:00 AM |
A STUDY ON THE PROCESSES OF THE WEST PACIFIC SUBTROPICAL HIGH DURING AUG. 4-12, 1958 |
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| YUAN EN-KUO,TAN TUNG-HANG and LEE YU-LING.A STUDY ON THE PROCESSES OF THE WEST PACIFIC SUBTROPICAL HIGH DURING AUG. 4-12, 1958[J].Acta Meteorologica Sinica,1964,34(2):162-173. |
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| Authors: | YUAN EN-KUO TAN TUNG-HANG and LEE YU-LING |
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| Institution: | Institute of Meteorology of Province Hubei;Institute of Meteorology of Province Hubei;Institute of Meteorology of Province Hubei |
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| Abstract: | The processes of the retreat of the West Pacific subtropical high from the mainland of China during Aug. 4-12, 1958 have been analysed. It is shown that the retreat first occurs in the layer of 200-400 mb and then propogates upwards and downwards, where-as, maximum changes occur at the 200 mb Ievel. However, the contour fields below 500 mb suffer small change. This situation is related to the dynamical factors near the tropopause. It is also pointed out that the retreat of the subtropical high may be largely caused by the marked changes of the meridional circulation and the easterly jet-stream which are produced by the development of the large circulation pattern. Further analysis is made on the physical mechanism of the retreat of the easterly jet-stream, the characteristic of the evolution in the structure of the high and the effect of the evolution on the retreat of the high. |
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