区域GPS网对流层延迟直接推算可降水量研究

王勇; 刘严萍; 柳林涛; 王宇亮; 许厚泽

区域GPS网对流层延迟直接推算可降水量研究

1.
河北理工大学交通与测绘学院, 河北, 唐山, 063009;中科院测量与地球物理研究所, 湖北, 武汉, 430077
2.
河北理工大学交通与测绘学院, 河北, 唐山, 063009
3.
中科院测量与地球物理研究所, 湖北, 武汉, 430077

基金项目: 国家自然科学基金(40574009);中国科学院百人计划项目;河南省重点科技攻关项目(072102360054)共同资助

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出版历程
- 收稿日期: 2006-05-19
- 修回日期: 2006-12-31

THE STUDY OF DIRECTLY CALCULATING PRECIPITABLE WATER VAPOR WITH ZENITH TROPOSPHERIC DELAY OF GPS NETWORK

1.
College of Traffic and Surveying, Hebei Polytechnic University, Tangshan 063009, China;Institute of Geodesy & Geophysics, Chinese Academy of Sciences, Wuhan 430077, China
2.
College of Traffic and Surveying, Hebei Polytechnic University, Tangshan 063009, China
3.
Institute of Geodesy & Geophysics, Chinese Academy of Sciences, Wuhan 430077, China

摘要

摘要: 针对武汉地区GPS气象网资料进行GPS对流层延迟直接推算可降水量的研究。推导了对流层延迟直接推算可降水量的模型,并对模型结果进行检验。从武汉东湖站GPS对流层延迟与无线电探空可降水量的比较中可知,两者具有很好的相关性,相关系数达到0.931;由该站对流层延迟转换的可降水量与无线电探空可降水量的比较可得,均方根为4.45mm,相关系数为0.905,对流层延迟转换的可降水量与GPS可降水量的均方根为2.23mm,相关系数为0.988。说明在没有气象数据的地区,对流层延迟直接推算的可降水量可以作为气象短期预报的参考依据。
- 对流层延迟 /
- 可降水量 /
- GPS气象网
Abstract: With the data of GPS Meteorology Network in the region of Wuhan,the article discusses the study of directly calculating precipitable water vapor with GPS zenith tropospheric delay.Comparisons of radiosonde precipitable water vapor and GPS zenith tropospheric delay at the Donghu station of Wuhan indicate good correlation between them with the correlative coefficient at 0.931.A model of directly calculating precipitable water vapor is derived and the model results are proof-tested.The root mean square of GPS precipitable water vapor and radiosonde is 4.45 mm and the correlative coefficient is 0.901 in the comparison between the precipitable water vapor of zenith tropospheric delay and radiosonde data.The root mean square is 2.23 mm and the correlative coefficient is 0.988 in the comparison between the precipitable water vapor of zenith tropospheric delay and GPS/PWV.It is shown that the precipitable water vapor of zenith tropospheric delay can be considered as the reference of short-range forecast in regions without meteorological data.
- tropospheric zenith delay /
- precipitable water vapor /
- GPS Meteorology Network

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参考文献(14)

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