Towards kilometer-scale ocean–atmosphere–wave coupled forecast: a case study on a Mediterranean heavy precipitation event

Sauvage, César; Lebeaupin Brossier, Cindy; Bouin, Marie-Noëlle

doi:https://doi.org/10.5194/acp-21-11857-2021

Articles | Volume 21, issue 15

https://doi.org/10.5194/acp-21-11857-2021

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

Special issue:

Hydrological cycle in the Mediterranean (ACP/AMT/GMD/HESS/NHESS/OS...

https://doi.org/10.5194/acp-21-11857-2021

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

Articles | Volume 21, issue 15

Research article

|

09 Aug 2021

Research article |

| 09 Aug 2021

Towards kilometer-scale ocean–atmosphere–wave coupled forecast: a case study on a Mediterranean heavy precipitation event

César Sauvage, Cindy Lebeaupin Brossier, and Marie-Noëlle Bouin

Model code and software

OASIS CERFACS https://portal.enes.org/oasis

WW3 NOAA https://polar.ncep.noaa.gov/waves/wavewatch/

SURFEX CNRM http://www.umr-cnrm.fr/surfex/

NEMO CMCC/CNRS/NERC/MERCATOR/Met-Office https://www.nemo-ocean.eu/

NOAA/NCEP NOAA-EMC/WW3 https://github.com/NOAA-EMC/WW3

Configuration of NEMO Institut Pierre Simon Laplace https://sourcesup.renater.fr/wiki/morcemed/nemconfig

Short summary

Air–sea processes are key elements during Mediterranean heavy precipitation events. We aim to progress in their representation in high-resolution weather forecast. Using coupled ocean–air–wave simulations, we investigated air–sea mechanisms modulated by ocean and waves during a case that occurred in southern France. Results showed significant impact of the forecast on low-level dynamics and air–sea fluxes and illustrated potential benefits of coupled numerical weather prediction systems.