| THE ROLE OF TROPICAL CONVECTION IN VARIATION OF INTRASEASONAL TELECONNECTIONS OF TROPICAL AND EXTRATROPICAL CIRCULATIONS |
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| 作者姓名： | Yu Bin Huang Ronghui |
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| 作者单位： | Institute of Atmospheric Physics Chinese Academy of Sciences.Beijing 100080，Institute of Atmospheric Physics，Chinese Academy of Sciences.Beijing 100080 |
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| 摘 要： | Based on ECMWF objective analysis data, the relationships between tropical convective activi-ties and extratropical circulation, as well as the low frequency kinetic energy, have been investigat-ed by making use of diagnostic analysis methods on the intraseasonal time scale in winters of 1983/1984 and 1986/1987. From this study, it is found that the different intensities of the tropical con-vective activities may bring about both the different intraseasonal teleconnection wave trains be-tween the tropics and the extratropics and the different dispersions of the low frequency wave ener-gy. Moreover, the tropical convection can be an important junction factor for the teleconnection ef-fect of the tropical and extratropical circulations on the intraseasonal time scale.
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| 关 键 词： | 30—60 day low frequency domain tropical convective activities atmospheric circulation low frequency kinetic energy |
| 收稿时间： | 1994/7/28 0:00:00 |
| 修稿时间： | 9/2/1995 12:00:00 AM |
THE ROLE OF TROPICAL CONVECTION IN VARIATION OF INTRASEASONAL TELECONNECTIONS OF TROPICAL AND EXTRATROPICAL CIRCULATIONS |
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| Yu Bin,Huang Ronghui.THE ROLE OF TROPICAL CONVECTION IN VARIATION OF INTRASEASONAL TELECONNECTIONS OF TROPICAL AND EXTRATROPICAL CIRCULATIONS[J].Acta Meteorologica Sinica,1996,10(1):1-12. |
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| Authors: | Yu Bin and Huang Ronghui |
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| Institution: | Yu Bin,Huang Ronghui,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100080 |
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| Abstract: | Based on ECMWF objective analysis data, the relationships between tropical convective activi- ties and extratropical circulation, as well as the low frequency kinetic energy, have been investigat- ed by making use of diagnostic analysis methods on the intraseasonal time scale in winters of 1983/ 1984 and 1986/1987. From this study, it is found that the different intensities of the tropical con- vective activities may bring about both the different intraseasonal teleconnection wave trains be- tween the tropics and the extratropics and the different dispersions of the low frequency wave ener- gy. Moreover, the tropical convection can be an important junction factor for the teleconnection ef- fect of the tropical and extratropical circulations on the intraseasonal time scale. |
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| Keywords: | 30-60 day low frequency domain tropical convective activities atmospheric circulation low frequency kinetic energy |
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