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.

Data sets

MITgcm model setup and output for "Development of adjoint-based ocean state estimation for the Amundsen and Bellingshausen Seas and ice shelf cavities using MITgcm/ECCO" Yoshihiro Nakayama https://doi.org/10.5281/zenodo.4541036

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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.