GNSS反演数据与PM2.5质量浓度相关性研究  

Correlation Between GNSS Inversion Data and PM2.5 Concentration Data

作　　者：李燕敏[1] 高雅萍[2] 魏瑶[1] 程娜[3] 王涛[1,4] LI Yanmin;GAO Yaping;WEI Yao;CHENG Na;WANG Tao(Shaanxi Railway Institute,Weinan 714099,China;College of Earth Sciences, Chengdu University of Technology,Chengdu 610000, China;Shanghai Astronomical Observatory,Chinese Academy of Sciences, Shanghai 200000, China;College of Geology Engineering and Geomatics, Chang'an University, Xi'an 710054, China)

机构地区：[1]陕西铁路工程职业技术学院,陕西渭南714099 [2]成都理工大学地球科学学院,四川成都610000 [3]中国科学院上海天文台,上海200000 [4]长安大学地质工程与测绘学院,陕西西安710054

出　　处：《测绘地理信息》2019年第4期65-67,共3页Journal of Geomatics

基　　金：陕西铁路工程职业技术学院2016年第二批科研基金(KY2016-51)

摘　　要：针对目前雾霾中PM2.5的测定方法存在局限性的问题,提出一种利用全球导航卫星系统(global navigation satellite system,GNSS)反演技术探测大气颗粒物PM2.5浓度的新思路。通过观察分析,发现雾霾天气的变化具有季节性,为此选取4个不同时期的数据进行GNSS反演,获得大气对流层中的一些延迟量,进而获得大气可降水量。通过分析大气可降水量与同时期的PM2.5浓度之间的相关性,验证GNSS反演技术探测PM2.5浓度思路的可行性。实验结果表明,GNSS反演数据与PM2.5浓度存在一定的关系,在监测PM2.5浓度方面存在潜在的应用价值,并为完善当前的雾霾预警机制的研究提供参考。In view of the limitations of the current determination methods of PM2.5 in haze, a new idea of using GNSS inversion technique to detect PM2.5 concentration of atmospheric particles is proposed in this paper. Data of four different periods is selected to perform GNSS inversion to obtain some troposphere delay and atmospheric precipitation. By analyzing the correlation between atmospheric pre-cipitable water and the concentration of PM2.5 in the same period, the feasibility of GNSS inversion technique to detect PM2.5 concentration is verified. Experimental results show that there is a certain relationship between GNSS inversion data and PM2.5 concentration, which has potential application value in monitoring PM2.5 concentration, and provides a reference for improving the current research of haze warning mechanism.

关 键 词：雾霾 PM2.5 全球导航卫星系统反演技术 大气可降水量 监测 

分 类 号：P228[天文地球—大地测量学与测量工程]