| 实测资料中低频振荡的传播路径及其维持机制 |
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| 引用本文： | 徐建军,王国民.实测资料中低频振荡的传播路径及其维持机制[J].南京气象学院学报,1993,16(3):314-318. |
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| 作者姓名： | 徐建军 王国民 |
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| 作者单位： | 南京气象学院
(徐建军)，南京大学(王国民) |
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| 摘 要： |
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| 关 键 词： | 低频振荡 矢量 传播路径 天气预报 |
PROPAGATION PATH AND MAINTENANCE OF LOW-FREQUENCY OSCILLATION FROM OBSERVATIONS |
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| Xu Jianjun.PROPAGATION PATH AND MAINTENANCE OF LOW-FREQUENCY OSCILLATION FROM OBSERVATIONS[J].Journal of Nanjing Institute of Meteorology,1993,16(3):314-318. |
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| Authors: | Xu Jianjun |
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| Institution: | Xu Jianjun(Nanjing Institute of Meteorology)Wang Guoming(Nanjing University ) |
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| Abstract: | With the aid of the vector E dynamic diagnosis in conjunction with correlation calculation, the 500hPa ECMWF daily data are dealt with. Detailed research is done of the problem of propagation path of low-frequency oscillation based on observations and the possible maintenance mechanisms are investigated diagnostically by means of the barotropically unstable energy conversion feature. Results show that the oscillation propagates along three dominant wave-ray paths in close relation with the westerly wind distribution. The maintenance bears some relation to the energy conversion of time mean flow. |
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