Articles | Volume 21, issue 3
https://doi.org/10.5194/os-21-1033-2025
https://doi.org/10.5194/os-21-1033-2025
Research article
 | 
16 Jun 2025
Research article |  | 16 Jun 2025

Advances in surface water and ocean topography for fine-scale eddy identification from altimeter sea surface height merging maps in the South China Sea

Xiaoya Zhang, Lei Liu, Jianfang Fei, Zhijin Li, Zexun Wei, Zhiwei Zhang, Xingliang Jiang, Zexin Dong, and Feng Xu

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CC1: 'Comment on egusphere-2024-2773', Louise Rousselet, 29 Nov 2024
    • AC1: 'Reply on RC1', Xiaoya Zhang, 05 Feb 2025
  • RC1: 'Comment on egusphere-2024-2773', Louise Rousselet, 29 Nov 2024
    • AC3: 'Reply on RC1', Xiaoya Zhang, 05 Feb 2025
  • RC2: 'Comment on egusphere-2024-2773', Anonymous Referee #2, 29 Nov 2024
    • AC2: 'Reply on RC2', Xiaoya Zhang, 05 Feb 2025
  • AC1: 'Reply on RC1', Xiaoya Zhang, 05 Feb 2025

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Xiaoya Zhang on behalf of the Authors (05 Feb 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (06 Feb 2025) by Aida Alvera-Azcárate
RR by Louise Rousselet (18 Feb 2025)
ED: Publish subject to minor revisions (review by editor) (21 Feb 2025) by Aida Alvera-Azcárate
AR by Xiaoya Zhang on behalf of the Authors (28 Feb 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (11 Mar 2025) by Aida Alvera-Azcárate
AR by Xiaoya Zhang on behalf of the Authors (12 Mar 2025)
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Short summary
Our research evaluated the precision of mapping the ocean's surface with combined data from a couple of satellites, focusing on dynamic aspects revealed by sea level changes. The results show that 2DVAR (two-dimensional variation), a new mapping product, aligns more closely and with less error with the most advanced satellite observations than a widely used mapping product called AVISO (Archiving, Validation, and Interpretation of Satellite Oceanographic). The results suggest that 2DVAR detects minor ocean movements better, making it more valuable and reliable for ocean dynamic study.
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