摘要
依据在沪宁高速公路上对低能见度浓雾的监测资料,结合四年来的预报实践,阐述了对浓雾突发性的认识和预报工作中值得关注的问题。本文揭示了低能见度浓雾的形成不是一次完成的,在浓雾过程形成前有一个"象鼻形"的先期振荡,它持续时间短,能见度值还不太低,但具有普遍性,对后期浓雾的形成和预报有相当的应用价值。
According to the observation datum of low visibility thick fog on Shanghai-Nanjing expressway and 4 years＇ forecast practice,the abrupt formation process of thick fog and key factor in its forecast have been analyzed. Before the formation of thick fog there was a ＂trunk-like＂ fluctuating forepart, which exists in a short time with not too low visibility. The analysis may be useful for practical operation for post thick fog forecast.
出处
《气象科学》
CSCD
北大核心
2007年第6期661-665,共5页
Journal of the Meteorological Sciences
基金
中国气象局气象新技术推广项目(编号:CMATG2006M30)资助
关键词
浓雾
监测预报
高速公路
Thick fog Observation forecast Practice Cognition
