Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Environmental Science & Technology》 2017-02
Add to Favorite Get Latest Update

Analysis of Aerosol Concentrations and Transportation Characteristics in Two Strong Sand-dust Weather in Yinchuan

LIU Yulan;MA Shaiyan;XIN Yaosheng;DING Yonghong;PEI Xiaorong;SHAO Jian;Yinchuan Meteorological Bureau;Ningxia Meteorological Service Center;Ningxia Observatory;Ningxia Meteorological Administration;  
By analyzing the development of two strong sand-dust weather in Yinchuan,as well as the variation character of aerosol mass concentration and backward trajectory,the dust source and the clearance efficiency were studied,and results showed that the bigger the aerosol particle size is,the faster the concentration rangeability is,and in the process of clearance,the bigger the aerosol particle size is,the higher the cleaning efficiency is. The path of cold air,the wind direction and the source of sand-dust is all different,the sand-dust weather process of exogenous inputs may cause strong increase of aerosol concentration even the wind speed is slower;but the increase of aerosol concentration and the increase of wind speed have a better corresponding relation in the local sand-dust. Sand-dust weather can cause serious particulate air pollution,but the appropriate wind speed conducive to the diffusion of aerosol particles,can play a role in scavenging.
【Fund】: 宁夏自然基金项目资助:基于新国标的银川空气质量预报检验及订正技术研究(NZ15207)
【CateGory Index】: X513
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved