Articles | Volume 11, issue 4
Research article
26 Apr 2018
Research article |  | 26 Apr 2018

Analysis of ionospheric structure influences on residual ionospheric errors in GNSS radio occultation bending angles based on ray tracing simulations

Congliang Liu, Gottfried Kirchengast, Yueqiang Sun, Kefei Zhang, Robert Norman, Marc Schwaerz, Weihua Bai, Qifei Du, and Ying Li


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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Congliang Liu on behalf of the Authors (28 Feb 2018)  Author's response    Manuscript
ED: Publish as is (09 Mar 2018) by Sean Healy
Short summary
In this study, we focused on investigating the causes of the higher-order residual ionospheric error (RIE) in the GNSS RO events, by employing detailed along-ray-path analyses of atmospheric and ionospheric refractivities, impact parameter changes, and bending angles and RIEs under asymmetric and symmetric ionospheric structures. We found that the main causes of the high RIEs are a combination of physics-based effects, where asymmetric ionospheric conditions play the primary role.