摘要
利用常规气象观测资料和葵花卫星遥感资料,对2021年5月5—7日发生在巴彦淖尔市的强沙尘暴天气进行分析。结果表明,此次天气过程是在高空急流带、强锋区、地面冷高压与蒙古气旋及两者过渡带产生的强冷锋共同作用下产生的。层结条件分析表明,风速不均匀形成的“顺滚流”导致本次天气过程出现由晴天到大风沙尘天气的转折性变化。通过分析大风、沙尘天气发生时AQI,PM_(2.5)及PM_(10)的变化情况,可为巴彦淖尔市空气质量研究提供参考。
Based on conventional meteorological observation data and Himawari satellite remote sensing data,the strong sandstorm in Bayannaoer from May 5 to 6 in 2021 was analyzed.The results show that the sandstorm was caused by the combined actions of the upper-level jet stream,the strong frontal zone,a cold wave at the surface,the Mongolian cyclone,and a strong cold front generated in the transition zone.The stratification condition analysis shows that the“forward rolling flow”formed by uneven wind speed lead to the turning change of the weather from sunny to strong windy and dusty.It can provide reference for the study of air quality in Bayannaoer City by analyzing the changes of AQI,PM_(2.5) and PM_(10) during the weather process.
作者
甄雅鑫
ZHEN Yaxin(Bayannur Meteorological Bureau,Bayannur 015000,China)
出处
《宁夏工程技术》
CAS
2023年第1期26-31,共6页
Ningxia Engineering Technology
关键词
强沙尘暴
层结条件
AQI
strong sandstorm
stratification condition
AQI
