摘要
本文以实况资料为基础,对2005年中发生在我国内蒙古的一次强沙尘暴天气过程进行风场和温度场等的诊断分析,结果显示:(1)本次沙尘暴天气过程属于西北路径强冷空气入侵造成的,有利的气候背景是本次沙尘暴发生的基础。(2)大气斜压性强,动量下传作用是沙尘暴的天气诱因。200hPa高空急流的加强,850hPa强锋区和冷槽发生发展是沙尘暴的主要原因。在此基础上,得出沙尘暴的预报着眼点。
According to the practical materials, the wind field and temperature field of one powerful sandstorm weather process happoned in the middle of 2005 in Inner Mongolia are diagnosed and analyzed. The results show that the favorable climate background is foundation of occurrence of this sandstorm and strengthened 200h Pa high altitude torrent and development of 850 h Pa powerful frontal zone and cold trough are major reason of sandstorm. Therefore, the key points to predict sandstorm are obtained.
出处
《内蒙古环境保护》
2006年第4期63-68,共6页
Inner Mongolia Environmental Protection
关键词
锋区
冷空气
沙尘暴
诊断分析
Frontal zone
Cold air
Sandstorm
Diagnosis analysis
