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Validation results of maximum S4 index in F-layer derived from GNOS on FY3C satellite
Bai, Weihua1,2,3,4; Sun, Yueqiang1,2,3,4; Xia, Junming1,2,4; Tan, Guangyuan1,2,4; Cheng, Cheng8; Yang, Guanglin1,6,7; Du, Qifei1,2,4; Wang, Xianyi1,2,4; Zhao, Danyang1,2,4; Tian, Yusen1,2,4; Zhang, Xiaoxin7; Liao, Mi6,7; Liu, Yan5; Meng, Xiangguang1,2,4; Liu, Congliang1,2,4; Cai, Yuerong1,2,4; Wang, Dongwei1,2,4
作者部门空间环境部
发表期刊GPS SOLUTIONS
2019
卷号23期号:1页码:UNSP 19
DOI10.1007/s10291-018-0807-x
ISSN1080-5370
语种英语
关键词FY3C satellite Radio occultation sounder Ionospheric scintillation S4 index
摘要The first Global Navigation Satellite System (GNSS) Occultation Sounder (GNOS) compatible with both BeiDou Navigation Satellite System (BDS) and Global Positioning System was successfully launched into orbit on September 23, 2013, which was mounted on the FengYun-3C (FY3C) satellite. FY3C/GNOS has produced a lot of ionospheric radio occultation (RO) scintillation data until now. This work was conducted to verify the accuracy of the scintillation data observed by FY3C/GNOS for monitoring of the GNSS signal attenuation and early warning of the possible GNSS signal interruption, thus laying the foundation for research on ionospheric space weather. In this work, the ionospheric F-layer maximum scintillation indexes S4 (S4maxF) probed by FY3C/GNOS and Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) are matched into data pairs by data matching criterions during January 10, 2014 and January 9, 2015, which allow the comparison and error analysis of S4maxF indexes between FY3C/GNOS and COSMIC. We find that FY3C/GNOS overestimates the S4maxF data compared to that of COSMIC, and the biases and standard deviations (Stds) of the differences between the two S4maxF indexes (FY3C/GNOS-COSMIC) in data pairs are 0.004 and 0.063 in the whole day, 0.007 and 0.080at nighttime, 0.001 and 0.046at daytime, respectively. The statistical error results verify the precision consistency of the ionospheric RO scintillation data between FY3C/GNOS and COSMIC. The errors at nighttime are larger than those in the whole day and daytime, which is probably due to time-varying ionospheric irregularities after midnight and disparity of the data matching criterions. Since the deployment of FY3 series satellites, GNOS can contribute more scintillation data to the international ionospheric research and forecasting of ionospheric space weather.
收录类别SCI ; EI
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文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/6673
专题空间环境部
作者单位1.National Space Science Center, Chinese Academy of Sciences (NSSC/CAS), Beijing, China;
2.Beijing Key Laboratory of Space Environment Exploration, National Space Science Center, Beijing, China;
3.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing, China;
4.Joint Laboratory on Occultations for Atmosphere and Climate (JLOAC), NSSC/CAS and University of Graz, Beijing, China;
5.National Meteorological Center, China Meteorological Administration, Beijing, China;
6.National Satellite Meteorological Center, China Meteorological Administration, Beijing, China;
7.National Center for Space Weather, China Meteorological Administration, Beijing, China;
8.National Intellectual Property Administration of the P.R.C, Beijing, China
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GB/T 7714
Bai, Weihua,Sun, Yueqiang,Xia, Junming,et al. Validation results of maximum S4 index in F-layer derived from GNOS on FY3C satellite[J]. GPS SOLUTIONS,2019,23(1):UNSP 19.
APA Bai, Weihua.,Sun, Yueqiang.,Xia, Junming.,Tan, Guangyuan.,Cheng, Cheng.,...&Wang, Dongwei.(2019).Validation results of maximum S4 index in F-layer derived from GNOS on FY3C satellite.GPS SOLUTIONS,23(1),UNSP 19.
MLA Bai, Weihua,et al."Validation results of maximum S4 index in F-layer derived from GNOS on FY3C satellite".GPS SOLUTIONS 23.1(2019):UNSP 19.
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