自动观测能见度仪在大雾预警中的应用

Application of automatic observation visibility meter in fog warning system

文章根据江苏省2013年1月70个台站的大雾观测资料,对比分析了大雾天气自动观测和人工观测能见度数据的差异。结果表明,自动观测能见度的数据在大雾状态下明显比人工观测值偏小,根据大雾预警信号的标准,通过人工观测最小能见度和自动观测数据对比分析,得出订正方法,为大雾预警信号发布提供参考。

Based on the fog observation data of 70 stations in Jiangsu province in January 2013,the visibility differences observed by automatic and artificial observation in a foggy weather are compared and analyzed.The results show that the automatic observation of visibility data is obviously smaller than the artificial observation data in the fog state.According to the standard of the fog warning signal,the correction method is obtained by comparing the minimum visibility in manual observation and the automatic observation data,which provides a reference for the distribution of the fog warning signal.