| DIAGNOSTIC ANALYSIS ON THE DYNAMICS AND NUMERICAL SIMULATION OF CLEAR AIR TURBULENCE(CAT) |
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| 作者姓名： | Liu Jinliang Li Jianzhong |
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| 作者单位： | Institute of Mesoscale Meteorology Chinese Academy of Meteorological Sciences，Beijing 100081，Beijing Meteorological Center，Civil Aviation Administration of China，Beijing 100621 |
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| 摘 要： | Clear air turbulence(CAT),a meso-or microscale(subgrid scale)phenomenon occurring insynoptic scale flow field at high altitude,is very difficult to be observed by the conventional obser-vation network.Thus it is necessary to approach an index to predict CAT.But at first,the struc-ture characteristics of CAT should be preanalyzed.In this paper,based on the theoretical and diag-nostic analysis of a case,features for wind profile,energy budget and dynamic mechanism of thiscase were presented.Furthermore,an objective and quantitative index for CAT forecast was giv-en.The verification for its efficiency was done with both real-time observation data and productsfrom a numerical model.The results are very encouraging.
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| 收稿时间： | 1994/11/28 0:00:00 |
| 修稿时间： | 1962/11/30 0:00:00 |
DIAGNOSTIC ANALYSIS ON THE DYNAMICS AND NUMERICAL SIMULATION OF CLEAR AIR TURBULENCE(CAT) |
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| Liu Jinliang,Li Jianzhong.DIAGNOSTIC ANALYSIS ON THE DYNAMICS AND NUMERICAL SIMULATION OF CLEAR AIR TURBULENCE(CAT)[J].Acta Meteorologica Sinica,1996,10(3):331-345. |
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| Authors: | Liu Jinliang and Li Jianzhong |
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| Institution: | Liu Jinliang Institute of Mesoscale Meteorology.Chinese Academy of Meteorological Sciences,Beijing 100081Li Jianzhong Beijing Meteorological Center.Civil Aviation Administration of China.Beijing 100621 |
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| Abstract: | Clear air turbulence(CAT),a meso-or microscale(subgrid scale)phenomenon occurring in synoptic scale flow field at high altitude,is very difficult to be observed by the conventional obser- vation network.Thus it is necessary to approach an index to predict CAT.But at first,the struc- ture characteristics of CAT should be preanalyzed.In this paper,based on the theoretical and diag- nostic analysis of a case,features for wind profile,energy budget and dynamic mechanism of this case were presented.Furthermore,an objective and quantitative index for CAT forecast was giv- en.The verification for its efficiency was done with both real-time observation data and products from a numerical model.The results are very encouraging. |
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| Keywords: | clear air turbulence(CAT) forecast indexes numerical simulation diagnostic analysis |
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