沪宁高速公路无锡段春季浓雾的实时监测和若干特征

REAL-TIME MONITORING AND CHARACTERISTICS OF FOG CAUSING LOW VISIBILITY ON THE SHANGHAI-NANJING HIGHWAY IN WUXI

20 0 0年 2月到 4月沪宁高速公路 ,共监测到 7次低能见度 (<2 0 0m)的春雾。本文应用环境气象监测仪AMW自动气象站 ,每分钟实测的有关资料和相应的环流背景场 ,对 7次春雾形成的物理过程作了研究分析。揭示了春雾形成过程中的若干特征和设计了实施临近预报制作的思路、流程。

In the context of the Environmental Meteorological Monitoring System-AMW Automatic Weather Station for 1-min samples,seven heavy fog events at visibility of <200 m from February to April,2000 were observed, whose physical processes are investigated in conjunction with measured data of related elements and corresponding circulation background fields, thereby revealing some characteristics of the fog formation, whereby considerations in designing a flow chart of fog nowcasting are developed. It is believed that nowcasting of fog-related low visibility in the project region through which the highway stretches is feasible and probable when the AMW monitoring devices are distributed along the road.