Evaluation of Precipitable Water Vapor Retrieval from Homogeneously Reprocessed Long-Term GNSS Tropospheric Zenith Wet Delay, and Multi-Technique

doi:10.3390/rs13214490

	Evaluation of Precipitable Water Vapor Retrieval from Homogeneously Reprocessed Long-Term GNSS Tropospheric Zenith Wet Delay, and Multi-Technique
	Su, Hang 1,2,3; Yang, Tao 4; Wang, Kan 1,2,3; Sun, Baoqi 1,2,3; Yang, Xuhai 1,2,3
	2021-11-01
发表期刊	REMOTE SENSING
卷号	13 期号:21 页码:22
摘要	Water vapor is one of the most important greenhouse gases in the world. There are many techniques that can measure water vapor directly or remotely. In this work, we first study the Global Positioning System (GPS)- and the Global Navigation Satellite System (GLONASS)-derived Zenith Wet Delay (ZWD) time series based on 11 years of the second reprocessing campaign of International Global Navigation Satellite Systems (GNSS) Service (IGS) using 320 globally distributed stations. The amount of measurement, the local environment, and the antenna radome are shown to be the main factors that affect the GNSS ZWDs and the corresponding a posteriori formal errors. Furthermore, antenna radome is able to effectively reduce the systematic bias of ZWDs and a posteriori formal errors between the GPS- and GLONASS-based solutions. With the development of the GLONASS, the ZWD differences between the GPS- and the GLONASS-based solutions have gradually decreased to sub-mm-level after GLONASS was fully operated. As the GPS-based Precipitable Water Vapor (PWV) is usually used as the reference to evaluate the other PWV products, the PWV consistency among several common techniques is evaluated, including GNSSs, spaceborne sensors, and numerical products from the European Center for Medium-Range Weather Forecasts (ECMWF). As an example of the results from a detailed comparison analysis, the long-term global analysis shows that the PWV obtained from the GNSS and the ECMWF have great intra-agreements. Based on the global distribution of the magnitude of the PWV and the PWV drift, most of the techniques showed superior agreement and proved their ability to do climate research. With a detailed study performed for the ZWDs and PWV on a long-term global scale, this contribution provides a useful supplement for future research on the GNSS ZWD and PWV.
关键词	ZWD PWV GNSS ECMWF MODIS AIRS
资助者	Youth Innovation Project of the National Time Service Center (NTSC) ; Youth Innovation Project of the National Time Service Center (NTSC) ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Youth Innovation Project of the National Time Service Center (NTSC) ; Youth Innovation Project of the National Time Service Center (NTSC) ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Youth Innovation Project of the National Time Service Center (NTSC) ; Youth Innovation Project of the National Time Service Center (NTSC) ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Youth Innovation Project of the National Time Service Center (NTSC) ; Youth Innovation Project of the National Time Service Center (NTSC) ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences
DOI	10.3390/rs13214490
关键词[WOS]	TIME-SERIES ; GPS ; EARTH ; RADIOSONDE ; SURFACE ; MODEL ; MODIS ; DEFORMATION ; FEEDBACK ; AIRS
语种	英语
资助项目	Youth Innovation Project of the National Time Service Center (NTSC) ; Natural Science Foundation of Shaanxi Province[2021JQ-322] ; National Nature Science Foundation of China[12073034] ; National Nature Science Foundation of China[12003041] ; West Light Foundation of the Chinese Academy of Sciences[XAB2018YDYL01] ; West Light Foundation of the Chinese Academy of Sciences[XAB2019A06]
资助者	Youth Innovation Project of the National Time Service Center (NTSC) ; Youth Innovation Project of the National Time Service Center (NTSC) ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Youth Innovation Project of the National Time Service Center (NTSC) ; Youth Innovation Project of the National Time Service Center (NTSC) ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Youth Innovation Project of the National Time Service Center (NTSC) ; Youth Innovation Project of the National Time Service Center (NTSC) ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences ; Youth Innovation Project of the National Time Service Center (NTSC) ; Youth Innovation Project of the National Time Service Center (NTSC) ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences ; West Light Foundation of the Chinese Academy of Sciences
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000719778200001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/14011
专题	高精度时间传递与精密测定轨研究室
通讯作者	Su, Hang
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Precise Positioning & Time Technol, Xian 710600, Peoples R China 4.Northwestern Polytech Univ, Unmanned Syst Res Inst, Xian 710072, Peoples R China
推荐引用方式 GB/T 7714	Su, Hang,Yang, Tao,Wang, Kan,et al. Evaluation of Precipitable Water Vapor Retrieval from Homogeneously Reprocessed Long-Term GNSS Tropospheric Zenith Wet Delay, and Multi-Technique[J]. REMOTE SENSING,2021,13(21):22.
APA	Su, Hang,Yang, Tao,Wang, Kan,Sun, Baoqi,&Yang, Xuhai.(2021).Evaluation of Precipitable Water Vapor Retrieval from Homogeneously Reprocessed Long-Term GNSS Tropospheric Zenith Wet Delay, and Multi-Technique.REMOTE SENSING,13(21),22.
MLA	Su, Hang,et al."Evaluation of Precipitable Water Vapor Retrieval from Homogeneously Reprocessed Long-Term GNSS Tropospheric Zenith Wet Delay, and Multi-Technique".REMOTE SENSING 13.21(2021):22.