Journal of Arid Meteorology
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WANG Yanfeng1, HUANG Wubin2, HE Cuiying3, HUANG Shan1
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熊亚军,唐宜西,寇星霞,李梓铭,孙兆彬,卢冰
作者简介:
基金资助:
国家重点研发计划(2016YFC0202101)、2016年中国气象局预报员专项(CMAYBY2016-003)和北京市气象局科技项目(BMBKJ201502008)
Abstract:
A haze and sand-dust mixed pollution event occurred in Beijing from March 26 to 31 in 2015. Based on the conventional meteorological observations, sounding data and the air quality data from Beijing environmental protection monitoring station, it was found that the mixed pollution event could be divided into four stages. In the first stage, Beijing area was in a weak convergence zone, and the atmospheric stratification was stable. The wind speed was small and the main weather phenomenon was haze. In the second stage, it was affected by the cyclone over Mongolia and the sand-dust occurred in Beijing. In the third stage, the sand-dust returned flow from the southern part of the North China and affected Beijing once again. In the fourth stage, dust weather gradually weakened and haze developed again. The simulation results of the HYSPLIT model show it was a typical mixed pollution weather caused by sand and dust backflow.
Key words: haze, return-flow of sand-dust, HYSPLIT model
摘要:
2015年3月26—31日北京地区发生一次霾和沙尘天气交替出现的混合型污染天气过程。利用常规气象观测数据、南郊观象台探空数据以及北京环境保护监测总站的空气质量数据,分析了典型个例的发生发展过程。结果发现:此过程可分为霾—沙尘—沙尘回流—霾4个发展阶段。第1阶段北京受弱辐合区控制,大气层结稳定,风速较小,以霾天气为主;第2阶段受蒙古气旋影响,沙尘天气南下影响北京;第3阶段沙尘从华北南部回流,再度影响北京;第4阶段沙尘天气逐渐减弱,北京地区再次出现霾。HYSPLIT后向轨迹模型的模拟结果表明,这是一次典型的沙尘回流所导致的混合污染型天气个例。
关键词: 霾, 沙尘回流, HYSPLIT模型
CLC Number:
P458.3
WANG Yanfeng1, HUANG Wubin2, HE Cuiying3, HUANG Shan1. Analysis of a Haze and Sand-dust Mixed Pollution Weather in Spring of Beijing[J]. Journal of Arid Meteorology, DOI: 10.11755/j.issn.1006-7639(2017)-01-0100.
熊亚军,唐宜西,寇星霞,李梓铭,孙兆彬,卢冰. 北京春季一次霾和沙尘混合污染天气过程分析[J]. 干旱气象, DOI: 10.11755/j.issn.1006-7639(2017)-01-0100.
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URL: http://www.ghqx.org.cn/EN/10.11755/j.issn.1006-7639(2017)-01-0100
http://www.ghqx.org.cn/EN/Y2017/V35/I1/100