| 环境温度场对台风等扰动发展和移动的影响 |
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| 引用本文： | 刘辉,董克勤.环境温度场对台风等扰动发展和移动的影响[J].气象学报,1987,45(2):188-194. |
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| 作者姓名： | 刘辉 董克勤 |
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| 作者单位： | 国家气象局气象科学研究院
(刘辉)，国家气象局气象科学研究院(董克勤) |
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| 摘 要： | 本文应用一个CISK机制的扰动模式,从理论上分析了环境温度梯度场对台风等对流性扰动发展和移动的影响。结果表明,环境温度梯度对台风等扰动的发展可产生明显的影响,而且该影响与环境温度梯度的方向及该梯度场和台风间的相对位置有很大关系,另外,环境温度梯度可使扰动出现一相当强的趋暖运动。本文的结果可为冷空气对台风发展和移动的影响提供一些动力方面的解释,对于实际的台风预报,有一定的参考价值,对于了解斜压环境中的对流系统的发展机制和参数化,本文的结果也有一定意义。
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| 收稿时间： | 1985/4/24 0:00:00 |
| 修稿时间： | 1985/12/23 0:00:00 |
EFFECTS OF THE ENVIRONMENT TEMPERATURE GRADIENT ON THE DEVELOPMENT AND MOVEMENT OF TROPICAL DISTURBANCE |
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| Liu Hui and Dong Keqin.EFFECTS OF THE ENVIRONMENT TEMPERATURE GRADIENT ON THE DEVELOPMENT AND MOVEMENT OF TROPICAL DISTURBANCE[J].Acta Meteorologica Sinica,1987,45(2):188-194. |
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| Authors: | Liu Hui and Dong Keqin |
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| Institution: | Academy of Meteorological Science, Stale Meteorological Administration;Academy of Meteorological Science, Stale Meteorological Administration |
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| Abstract: | Applying the theory of CISK to a two-level model,the effects of environment temperature gradient on the development and movement of tropical disturbances were analysed.The results are as follows:The gradient has a notable influence on the development of disturbance,and is related with both the direction of the gradient and the relative position between the gradient and the disturbance.Also,the gradient makes the disturbance move toward the warm air area.The above results may give some dynamic explanation to the effects of the cold air on the development and movement of typhoon and throw light on the mechanism of the developing of convective systems under baroclinic conditions and the parameterization of these systems. |
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