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ANALYSING SEASONAL CHARACTERISTICS OF RESIDUAL IONOSPHERIC ERRORS IN BENDING ANGLES BASED ON ENSEMBLES OF PROFILES FROM END-TO-END SIMULATIONS
Liu, Congliang; Kirchengast, Gottfried; Sun, Yueqiang; Du, Qifei; Bai, Weihua; Wang, Xianyi; Meng, Xiangguang; Xia, Junming; Zhao, Danyang; Cai, Yuerong; Wang, Dongwei; Wu, Chunjun; Li, Wei; Liu, Cheng
Department空间环境部
Source PublicationIGARSS 2018 - 2018 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
2018
Pages3143-3146
Language英语
ISSN2153-6996
ISBN978-1-5386-7150-4
AbstractThe Global Navigation Satellite System (GNSS) radio occultation (RO) observation data is widely used for numerical weather prediction (NWP) and global climate monitoring (GCM). However, the residual higher-order ionospheric error (RIE) can still be significant. To further mitigate the RIEs, characterization and quantification of RIEs in bending angles have been performed by using end-to-end simulations. In this study, the seasonal characteristics of the RIEs in bending angles were analyzed by using larger ensembles of profiles from end-to-end simulations. The results indicated that the RIE is a major source of the bending angle in lower mesosphere and upper stratosphere (LMUS), and its bias has a clear negative tendency that in line with our previous studies. The preliminary analysis showed that, globally the average bias and standard deviation of RIEs changed slightly, while regionally they changed obviously. For the northern hemisphere middle latitude (NHM) region, the largest average bias and standard deviation of RIEs happened in summer, while the smallest ones happened in winter. This study helps to inform future RIE mitigation schemes for ensuring benchmark quality stratospheric RO data.
Keywordresidual ionopheric error (RIE) bending angle seasonal characteristics GNSS RO
Conference Name38th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Conference DateJUL 22-27, 2018
Conference PlaceValencia, SPAIN
Indexed ByCPCI
Document Type会议论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6688
Collection空间环境部
Recommended Citation
GB/T 7714
Liu, Congliang,Kirchengast, Gottfried,Sun, Yueqiang,et al. ANALYSING SEASONAL CHARACTERISTICS OF RESIDUAL IONOSPHERIC ERRORS IN BENDING ANGLES BASED ON ENSEMBLES OF PROFILES FROM END-TO-END SIMULATIONS[C],2018:3143-3146.
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