Development of a semi-Lagrangian advection scheme for the  NEMO ocean model (3.1)

Subich, Christopher; Pellerin, Pierre; Smith, Gregory; Dupont, Frederic

doi:https://doi.org/10.5194/gmd-13-4379-2020

Articles | Volume 13, issue 9

https://doi.org/10.5194/gmd-13-4379-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-13-4379-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 9

Development and technical paper

|

18 Sep 2020

Development and technical paper |

| 18 Sep 2020

Development of a semi-Lagrangian advection scheme for the NEMO ocean model (3.1)

Christopher Subich, Pierre Pellerin, Gregory Smith, and Frederic Dupont

Data sets

Code repository 65 for "Development of a semi-Lagrangian advection scheme for the NEMO ocean model (3.1)" Christopher Subich, Pierre Pellerin, Gregory Smith, and Frederic Dupont https://doi.org/10.5281/zenodo.3905100

Short summary

This work presents a semi-Lagrangian advection module for the NEMO (OPA) ocean model. Semi-Lagrangian advection transports fluid properties (temperature, salinity, velocity) between time steps by following fluid motion and interpolating from upstream locations of fluid parcels. This method is commonly used in atmospheric models to extend time step size, but it has not previously been applied to operational ocean models. Overcoming this required a new approach for solid boundaries (coastlines).