摘要
文章利用呼伦贝尔市16个气象站1960—2015年最低气温<0℃时雾的观测记录,结合气象要素,对呼伦贝尔市极寒天气下特有的冰雾现象进行了初步研究。结果表明:在日最低气温<-37.0℃时,雾的发生概率突然升高,可以此作为冰雾研究的标准。呼伦贝尔市冰雾出现最多的地区为根河市,冰雾逐年出现的日数也呈现出下降趋势。冰雾的出现概率随日最低气温的降低而升高,多发生在降温过程中,冰雾发生时空气为非饱和状态,相对湿度多在70%~80%之间且随日最低气温的降低而降低,风速以静风为主,持续时间与日最低气温和气温日较差关系明显。
Extremely cold weather special ice fog phenomenon was studied by using inimum temperature less than 0℃fog observation records of 16 meteorological stations in Hulunbuir City from 1960 to 2015,combined with analysis of meteorological elements,and conducts a preliminary study on the Hulun Buir City.The results show that:In the daily minimum temperature lower than-37℃,the frequency of occurrence of the fog suddenly increased,which can be used as the standard of pogonip.Genhe City was the area where the most pogonip occurred in Hulun Buir..It’s decreasing year by year.Pogonip appear frequency increases with decrease of daily minimum temperature,occurred in the process of cooling,ice fog space gas for non saturated state,relative humidity in between 70%-80%and with the decrease of daily minimum temperature decreased,wind speed in the static wind,the duration was related to the daily minimum temperature and the diurnal temperature range.
作者
姜凤友
曲学斌
徐东升
Jiang Fengyou;Qu Xuebin;Xu Dongsheng(Hulun Buir Meteorological Bureau,Inner Mongolia Hulun Buir 021008)
出处
《内蒙古气象》
2019年第4期18-21,共4页
Meteorology Journal of Inner Mongolia
关键词
冰雾
呼伦贝尔市
最低气温
相对湿度
Pogonip
Hulun Buir city
Minimum temperature
Relative humidity
