Observation-based Low Visibility Nowcasting

摘要：

　　Low visibility phenomena can be caused by either fog whereby abundance of water droplets or crystals reduces visibility to < 1km (WMO,1992),or haze where dust,smoke and other dry particles obscure the clarity of the sky,or mixture of the two.Either way,low visibility can have a significant societal impact,particularly regarding all forms of traffic: aviation,roads and sailing.The occurrence of low visibility is strongly influenced by meteorological conditions,along with local topography,and emission and distribution of air pollutants.All this makes prediction of fog occurrence,extent,duration,and intensity a difficult task despite improvements in numerical guidance and modelling of the low visibility phenomenon.

作者: Jianmin Shao Andrew Hicks

作者单位: Vaisala Ltd.Elm House,351 Bristol Road,Birmingham,B5 7SW,UK

会议类型: 国内会议

会议名称: 第30届中国气象学会年会

会议地点: 南京

会议语种:英文

页码: 1-8

在线出版日期: 2013-10-23（万方平台首次上网日期，不代表论文的发表时间）