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投稿时间：2006-03-31 修订日期：2006-08-20
投稿时间：2006-03-31 修订日期：2006-08-20
中文摘要: 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。
中文关键词: 飞机积冰，飞行高度层，0℃等温线，对流不稳定
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 in-dex,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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引用文本：
陈静,吕环宇,2006.一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,32(12):66-71.
,2006.Dynamic Diagnosis on Aircraft Icing Under a Convective Instability Meteorological Condition[J].Meteor Mon,32(12):66-71.
陈静,吕环宇,2006.一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,32(12):66-71.
,2006.Dynamic Diagnosis on Aircraft Icing Under a Convective Instability Meteorological Condition[J].Meteor Mon,32(12):66-71.