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Effects of the High-Order Ionospheric Delay on GPS-Based Tropospheric Parameter Estimations in Turkey
Akgul, Volkan1; Gurbuz, Gokhan1; Kutoglu, Senol Hakan1; Jin, Shuanggen2,3
2020-11-01
Source PublicationREMOTE SENSING
Volume12Issue:21Pages:11
AbstractThe tropospheric delay and gradients can be estimated using Global Positioning System (GPS) observations after removing the ionospheric delay, which has been widely used for atmospheric studies and forecasting. However, high-order ionospheric (HOI) delays are generally ignored in GPS processing to estimate atmospheric parameters. In this study, HOI effects on GPS-estimated tropospheric delay and gradients are investigated from two weeks of GPS data in June 2011 at selected GPS stations in Turkey. Results show that HOI effects are up to 6 mm on zenith tropospheric delay (ZTD), 4 mm on the North-South (NS) gradient and 12 mm on the East-West (EW) gradient during this period, but can reach over 30 mm in slant tropospheric delays. Furthermore, the HOI effects on tropospheric delay and gradient are larger in the daytime than the nighttime. Furthermore, HOI effects on tropospheric delay are further investigated on low and high solar activity days. The HOI effects on GPS estimated tropospheric delay and gradients in high solar activity days are higher than those in low solar activity days.
KeywordGPS high-order ionospheric delay tropospheric delay gradients
DOI10.3390/rs12213569
WOS KeywordPRECIPITABLE WATER-VAPOR ; METEOROLOGY ; FIELD
Language英语
WOS Research AreaRemote Sensing
WOS SubjectRemote Sensing
WOS IDWOS:000589333300001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/80825
Collection中国科学院国家天文台
Corresponding AuthorJin, Shuanggen
Affiliation1.Zonguldak Bulent Ecevit Univ, Dept Geomat Engn, TR-67100 Zonguldak, Turkey
2.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing & Geomat Engn, Nanjing 210044, Peoples R China
3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
Recommended Citation
GB/T 7714
Akgul, Volkan,Gurbuz, Gokhan,Kutoglu, Senol Hakan,et al. Effects of the High-Order Ionospheric Delay on GPS-Based Tropospheric Parameter Estimations in Turkey[J]. REMOTE SENSING,2020,12(21):11.
APA Akgul, Volkan,Gurbuz, Gokhan,Kutoglu, Senol Hakan,&Jin, Shuanggen.(2020).Effects of the High-Order Ionospheric Delay on GPS-Based Tropospheric Parameter Estimations in Turkey.REMOTE SENSING,12(21),11.
MLA Akgul, Volkan,et al."Effects of the High-Order Ionospheric Delay on GPS-Based Tropospheric Parameter Estimations in Turkey".REMOTE SENSING 12.21(2020):11.
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