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投稿时间：2008-02-28 修订日期：2008-05-12
投稿时间：2008-02-28 修订日期：2008-05-12
中文摘要: 利用常规观测资料和NCEP 1°×1°的逐6小时格点资料，对2005年12月29—31日云南昆洛高
速公路峨山段一次典型的强山地雾过程进行天气动力学诊断分析，探讨了本次山地雾形成和
维持的机理。结果表明：雾区上空850～800hPa层间存在逆温层或中性层，逆温层越强，山
地雾越浓；近地层小于1m·s-1的微风有利于成雾；分析还指出这次强山地雾发生在
久雨转晴和地面强变性冷高压西南侧的天气背景下，地面强辐射冷却效应对山地雾有触发和
增强作用，地形背风坡有明显增雾作用。
Abstract:By using the NCEP 1°×1° grid point material and the convention observed data,
a heavy fog process in the mountainous region occurred in Kunming Daluo high w
ay in Yunnan in the end of December 2005 was diagnostically analyzed. The result
shows that this fog ever happened at the southwest side of strong cold high pre
ssure of ground in the weather background when the continuous and incessant
rain stopped and turned to clear day. The ground radiation cooling effect trigge
red and strengthened the mountainous region fog, and the topography leeward slop
e obviously strengthened the effect on the fog of mountain region. When fog form
ed, 850～800hPa level has an obvious inversion layer or the neutrosphere. The st
ronger the inversion layer, the heavier the mountainous region
fog. The breeze in the surface layer is advantageous in forming the fog.
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基金项目:国家科技攻关计划项目：“云南雾的监测及预报预警”资肋。
引用文本：
尤红,杨明,郭荣芬,白学文,2008.云南昆洛高速峨山段典型山地雾的诊断分析[J].气象,34(8):87-94.
You Hong,Yang Ming,Guo Rongfen,Bai Xuewen,2008.Diagnostic Analysis of Typical Mountainous Fog Process in Eshan along Kunming Daluo High Way in Yunnan[J].Meteor Mon,34(8):87-94.
尤红,杨明,郭荣芬,白学文,2008.云南昆洛高速峨山段典型山地雾的诊断分析[J].气象,34(8):87-94.
You Hong,Yang Ming,Guo Rongfen,Bai Xuewen,2008.Diagnostic Analysis of Typical Mountainous Fog Process in Eshan along Kunming Daluo High Way in Yunnan[J].Meteor Mon,34(8):87-94.