A comprehensive Earth system model (AWI-ESM2.1) with interactive icebergs: effects on surface and  deep-ocean characteristics

Ackermann, Lars; Rackow, Thomas; Himstedt, Kai; Gierz, Paul; Knorr, Gregor; Lohmann, Gerrit

doi:https://doi.org/10.5194/gmd-17-3279-2024

Articles | Volume 17, issue 8

https://doi.org/10.5194/gmd-17-3279-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-17-3279-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 8

Development and technical paper

|

26 Apr 2024

Development and technical paper |

| 26 Apr 2024

A comprehensive Earth system model (AWI-ESM2.1) with interactive icebergs: effects on surface and deep-ocean characteristics

Lars Ackermann, Thomas Rackow, Kai Himstedt, Paul Gierz, Gregor Knorr, and Gerrit Lohmann

Data sets

LarsAckermann GMD Iceberg 2023 - model output CTL Lars Ackermann https://doi.org/10.5281/zenodo.10017868

LarsAckermann GMD Iceberg 2023 - model output ICB Lars Ackermann https://doi.org/10.5281/zenodo.10017840

LarsAckermann GMD Iceberg 2023 - model output ICBFW Lars Ackermann https://doi.org/10.5281/zenodo.10018019

LarsAckermann GMD Iceberg 2023 - model output ICBHF Lars Ackermann https://doi.org/10.5281/zenodo.10018131

LarsAckermann GMD Iceberg 2023 - model output SPINUP Lars Ackermann https://doi.org/10.5281/zenodo.10018425

LarsAckermann GMD Iceberg 2023 - model input and scripts Ackermann, Lars https://doi.org/10.5281/zenodo.10012787

Model code and software

FESOM2.1_iceberg Lars Ackermann and Kai Himstedt https://doi.org/10.5281/zenodo.10000291

echam_6.3.05p2 diff for AWI-ES2.1-iceberg Lars Ackermann et al. https://doi.org/10.5281/zenodo.10009096

esm_tools extension for AWI-ESM with FESOM2.1-iceberg (6.8.0_iceberg) Lars Ackermann et al. https://doi.org/10.5281/zenodo.10018102

Short summary

We present long-term simulations with interactive icebergs in the Southern Ocean. By melting, icebergs reduce the temperature and salinity of the surrounding ocean. In our simulations, we find that this cooling effect of iceberg melting is not limited to the surface ocean but also reaches the deep ocean and propagates northward into all ocean basins. Additionally, the formation of deep-water masses in the Southern Ocean is enhanced.