| 一次对流不稳定条件下飞机积冰的天气动力诊断分析 |
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| 引用本文： | 陈静,吕环宇.一次对流不稳定条件下飞机积冰的天气动力诊断分析[J].气象,2006,32(12):66-71. |
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| 作者姓名： | 陈静 吕环宇 |
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| 作者单位： | 北京大学物理学院大气科学系,北京,100871;中国民航飞行学院洛阳分院气象台 |
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| 基金项目： | 致谢：本文得到北京大学物理学院大气科学系黄嘉佑教授的热心指导,特此致谢! |
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| 摘 要： | 通过对2006年2月16日洛阳至广汉航线严重积冰过程诊断分析得到：青藏高原东部海拔3000-7500m之间强度较高的积冰生成与对流不稳定气象条件密切相关。K指数、上升速度和涡度平流等物理量可用于积冰的预报参考，大的K指数和K指数增长区、上升气流较强区域、正涡度平流区域与较强积冰区域对应。
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| 关 键 词： | 飞机积冰 飞行高度层 0℃等温线 对流不稳定 |
| 收稿时间： | 03 31 2006 12:00AM |
| 修稿时间： | 2006-03-312006-08-20 |
Dynamic Diagnosis on Aircraft Icing Under a Convective Instability Meteorological Condition |
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| Chen Jing,Lu Huanyu.Dynamic Diagnosis on Aircraft Icing Under a Convective Instability Meteorological Condition[J].Meteorological Monthly,2006,32(12):66-71. |
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| Authors: | Chen Jing Lu Huanyu |
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| Institution: | Department of Atmospheric Science, School of Physics, Peking University, Beijing 100871~ Luoyang Branch Meteorological Observatory of CAFUC |
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| Abstract: | Diagnostic analysis on a server icing case occurring on the route from Luoyang to Guanghan on February 16, 2006 is conducted. It shows that the severe aircraft icing has close relations to the convective instability meteorological conditions between 3000 and 7000 high above the sea level in the east of the Tibetan Plateau. Such physical variables as K index, upward velocity vorticity advection, etc. can be used for the reference of icing forecast. Larger K index or its increasing areas, strong upward flow and advection regions of positive vorticity all correspond to the severe aircraft icing. |
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