Articles | Volume 14, issue 8
Geosci. Model Dev., 14, 4909–4924, 2021
https://doi.org/10.5194/gmd-14-4909-2021
Geosci. Model Dev., 14, 4909–4924, 2021
https://doi.org/10.5194/gmd-14-4909-2021

Development and technical paper 06 Aug 2021

Development and technical paper | 06 Aug 2021

Development of adjoint-based ocean state estimation for the Amundsen and Bellingshausen seas and ice shelf cavities using MITgcm–ECCO (66j)

Yoshihiro Nakayama et al.

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gmd-2020-421', Dan Jones, 09 Mar 2021
    • AC2: 'Reply on RC1', Yoshihiro Nakayama, 31 May 2021
    • AC4: 'Reply on RC1', Yoshihiro Nakayama, 07 Jun 2021
  • CEC1: 'Comment on gmd-2020-421', Astrid Kerkweg, 29 Mar 2021
    • AC1: 'Reply on CEC1', Yoshihiro Nakayama, 31 May 2021
  • RC2: 'Comment on gmd-2020-421', Anonymous Referee #2, 09 Apr 2021
    • AC3: 'Reply on RC2', Yoshihiro Nakayama, 31 May 2021
    • AC5: 'Reply on RC2', Yoshihiro Nakayama, 07 Jun 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Yoshihiro Nakayama on behalf of the Authors (07 Jun 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (13 Jun 2021) by Alexander Robel
RR by Dan Jones (21 Jun 2021)
RR by Anonymous Referee #2 (30 Jun 2021)
ED: Publish subject to technical corrections (02 Jul 2021) by Alexander Robel
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Short summary
High ice shelf melting in the Amundsen Sea has attracted many observational campaigns in the past decade. One method to combine observations with numerical models is the adjoint method. After 20 iterations, the cost function, defined as a sum of the weighted model–data difference, is reduced by 65 % by adjusting initial conditions, atmospheric forcing, and vertical diffusivity. This study demonstrates adjoint-method optimization with explicit representation of ice shelf cavity circulation.