摘要
对流层延迟是影响卫星定位的主要误差之一,雾霾发生在对流层,因此雾霾对对流层延迟会产生不同程度的影响,从而影响卫星导航定位的精度。本文对对流层延迟与空气质量指数之间的相关性进行研究,进一步探究雾霾的主要污染成分与气象元素之间的关系,分析促进雾霾发生的条件。结果表明,从雾霾发生到消失扩散的过程中,对流层延迟与空气质量指数间表现出较强的相关性,随着气压、风速的降低和相对湿度的增大,雾霾发生的概率会增加。
The tropospheric delay is one of the main errors that affect the satellite positioning.The haze occurs in the troposphere,so the haze will have different effects on the tropospheric delay,which will affect the accuracy of satellite navigation and positioning.The correlation between tropospheric delay and air quality index,the relationship between the primary pollutants and meteorological elements of haze,and the conditions for promoting haze here was analyzed and researched.The results show that there is a strong correlation between the tropospheric delay and the air quality index.With the decreases of air pressure and wind speed,the increases of relative humidity,the probability of haze occurrence will improve.
作者
谢劭峰
梁春丽
刘中流
苏永柠
Xie Shao-feng;Liang Chun-li;Liu Zhong-liu;SU Yong-ning(College of Geomatics and Geoinformation,Guilin University of Technology,Guangi Key Laboratory of Spatial Information and Geomatics,Guilin 541004,China)
出处
《科学技术与工程》
北大核心
2018年第9期184-188,共5页
Science Technology and Engineering
基金
国家自然科学基金(41704027,41664002)、广西自然科学基金(2015GXNSFAA139230)、广西中青年教师基础能力提升项目(2017KY0267,KY2016YB189)和广西空间信息与测绘重点实验室资助课题(15-140-07-11,15-140-07-29,16-380-25-11,16-380-25-27)G助
关键词
雾霾
对流层延迟
空气质量指数
气象因素
haze
zenith tropospheric delay
air quality index
meteorological factors