| WAVE BOUNDARY BETWEEN MIDDLE-AND-LOW AND MIDDLE-AND-HIGH LATITUDE CIRCULATIONS, AND SEASONAL TRANSFORMATION OF NORTHERN-HEMISPHERE MEAN CIRCULATION |
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| 作者姓名： | 王盘兴 刘玳 潘德育 |
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| 作者单位： | Nanjing Institute of Meteorology，Nanjing，Nanjing Institute of Meteorology，Nanjing，Nanjing Institute of Meteorology，Nanjing |
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| 摘 要： | The definition for stability D of standing waves given in this paper is used to denote the relative magnitude of annual variation of the waves. Analysis of the temporal (seasonal) and spatial (meridional) changes of the monthly mean circulation at 500 and 100 hPa shows its temporal and spatial demarcation and the bourdary between the middle-and-low latitude circulation and the middle-and-high latitude circulation in the wave field. Based on the annual march of D and the position of the boundary, a discussion is made of the seasonal transformation of the Northern-Hemisphere mean circulation and the pattern of its development.
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