京疆高速米东区路段冬季浓雾特征及其成因分析  

Analysis on the Characteristics and Causes of Winter Heavy Fog in the Midong District of the Beijing-Xinjiang Expressway

作　　者：阿不都沙拉木·阿扎提 黎莹晖 Abdulsharam·Azati(Meteorology Bureau of Midong District,Urumqi,Xinjiang 831400)

机构地区：[1]乌鲁木齐市米东区气象局,新疆乌鲁木齐831400

出　　处：《农业灾害研究》2023年第10期163-165,共3页Journal of Agricultural Catastrophology

摘　　要：利用2013—2014年京疆高速米东区路段浓雾及气象资料,分析了造成京疆高速米东区路段浓雾特征,并通过气象要素特征分析,探讨了形成浓雾的气象成因。结果表明:京疆高速米东区路段浓雾主要出现在11月至翌年3月,从大雾的发生时段来看,一般生成于后半夜或清晨,日出前最浓。多发时段一般为22:00至翌日08:00。当相对湿度保持在90%~100%之间,温度为-15~0℃,风速为0~5 m/s,大雾的发生概率最高,即相对湿度越高、温度露点差越低、风速越小,低能见度状况的发生率就越高。在具体针对各类气象要素和能见度之间的相关性进行研究后发现,相对湿度、风速、气温等因素间存在极为紧密的联系。Using the dense fog and meteorological data of Midong District Section ofJingjiangExpresswayfrom2013to2014,the characteristics of the dense fog in the Midong District Section of Jingjiang Expressway were analyzed.Through the analysis of meteorological element characteristics,the meteorological causes of the formation of dense fog were explored.The results show that dense fog mainly occurs in the Midong section of the Beijing-Xinjiang Expressway from November to March of the following year.From the time period of occurrence of heavy fog,it generally occurs in the late night or early morning,with the thickest before sunrise.The frequent transmission period was generally from 22:00 to 08:00 the next day.When the relative humidity was maintained between 90%and 100%,the temperature was between-15~0℃,and the wind speed was maintained at 0~5 m/s,the probability of heavy fog occurrence is highest.That was,the higher the relative humidity,the lower the temperature dew point difference,and the smaller the wind speed,the higher the occurrence rate of low visibility conditions.After conducting specific research on the correlation between various meteorological factors and visibility,it was found that there was a very close relationship between factors such as relative humidity,wind speed,and temperature.

关 键 词：米东区 冬季 高速公路 大雾气候特征 

分 类 号：P45[天文地球—大气科学及气象学]