NDLI: Impact of the weighted mean temperature on the estimation of GPS precipitable water vapor

Content Provider	IEEE Xplore Digital Library
Author	Yunchang Cao Feifei Zheng Yifeng Xie Yanmeng Bi
Copyright Year	2008
Description	Author affiliation: Atmos. Obs. Tech. Center, Beijing (Yunchang Cao)
Abstract	The relationship of the weighted mean temperature and the surface temperature was obtained using the radiosonde observation in Anqing from 2004 to 2007. The weighted mean temperature estimated from the regressed formula is higher than that from the Bevis formula when the surface temperature increases, which introduces the difference of approximate 1.9% of the GPS precipitable water vapor when the surface temperature gets to 40degC, and smaller difference in the lower surface temperature. The different regressions between different years induce the difference of 0.72% of the GPS PWV when the surface temperature reaches 40degC, and the difference of 2.17% of the GPS PWV in the surface temperature of -10degC. It suggests that the regressed formula to estimate the weighted mean temperature will be beneficial for the estimation of the GPS PWV in the summer, while it has little positive impact on the estimation in the winter.
Starting Page	799
Ending Page	801
File Size	872714
Page Count	3
File Format	PDF
ISBN	9781424418794
DOI	10.1109/ICMMT.2008.4540519
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-04-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature Global Positioning System Meteorology Terrestrial atmosphere Satellite broadcasting Delay estimation Microwave radiometry Bismuth Ionosphere Delay effects
Content Type	Text
Resource Type	Article

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