ICONGETM v1.0 – flexible NUOPC-driven two-way coupling via ESMF exchange grids between the unstructured-grid atmosphere model ICON and the structured-grid coastal ocean model GETM

Bauer, Tobias Peter; Holtermann, Peter; Heinold, Bernd; Radtke, Hagen; Knoth, Oswald; Klingbeil, Knut

doi:https://doi.org/10.5194/gmd-14-4843-2021

Articles | Volume 14, issue 8

https://doi.org/10.5194/gmd-14-4843-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-14-4843-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 8

Model description paper

|

04 Aug 2021

Model description paper |

| 04 Aug 2021

ICONGETM v1.0 – flexible NUOPC-driven two-way coupling via ESMF exchange grids between the unstructured-grid atmosphere model ICON and the structured-grid coastal ocean model GETM

Tobias Peter Bauer, Peter Holtermann, Bernd Heinold, Hagen Radtke, Oswald Knoth, and Knut Klingbeil

Model code and software

ICONGETM v1.0 - Flexible NUOPC-driven two-way coupling via ESMF exchange grids between the unstructured-grid atmosphere model ICON and the structured-grid coastal ocean model GETM Tobias Peter Bauer Knut Klingbeil Oswald Knoth https://doi.org/10.5281/zenodo.4516568

The atmosphere model ICON as used in the two-way coupled atmosphere-ocean model ICONGETM Tobias Peter Bauer https://doi.org/10.5281/zenodo.4432739

Short summary

We present the coupled atmosphere–ocean model system ICONGETM. The added value and potential of using the latest coupling technologies are discussed in detail. An exchange grid handles the different coastlines from the unstructured atmosphere and the structured ocean grids. Due to a high level of automated processing, ICONGETM requires only minimal user input. The application to a coastal upwelling scenario demonstrates significantly improved model results compared to uncoupled simulations.