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

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

doi:https://doi.org/10.5194/amt-11-2427-2018

Articles | Volume 11, issue 4

https://doi.org/10.5194/amt-11-2427-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Observing Atmosphere and Climate with Occultation Techniques...

https://doi.org/10.5194/amt-11-2427-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

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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Final revised paper (published on 26 Apr 2018)
Preprint (discussion started on 31 Aug 2017)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review of amt-2017-242', Anonymous Referee #1, 25 Oct 2017
- AC1: 'Author response referee 1', Congliang Liu, 28 Feb 2018
RC2: 'Review', Anonymous Referee #2, 09 Dec 2017
- AC2: 'Author response referee 2', Congliang Liu, 28 Feb 2018

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

AR by Congliang Liu on behalf of the Authors (13 Mar 2018)

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.