The wave-age-dependent stress parameterisation (WASP) for momentum and heat  turbulent fluxes at sea in SURFEX v8.1

Bouin, Marie-Noëlle; Lebeaupin Brossier, Cindy; Malardel, Sylvie; Voldoire, Aurore; Sauvage, César

doi:https://doi.org/10.5194/gmd-17-117-2024

Articles | Volume 17, issue 1

https://doi.org/10.5194/gmd-17-117-2024

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

Special issue:

The externalised surface model SURFEX

https://doi.org/10.5194/gmd-17-117-2024

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

Articles | Volume 17, issue 1

Development and technical paper

|

09 Jan 2024

Development and technical paper |

| 09 Jan 2024

The wave-age-dependent stress parameterisation (WASP) for momentum and heat turbulent fluxes at sea in SURFEX v8.1

Marie-Noëlle Bouin, Cindy Lebeaupin Brossier, Sylvie Malardel, Aurore Voldoire, and César Sauvage

Data sets

Datasets and model outputs used for validating WASP for SURFEX v8.0 Marie-Noëlle Bouin https://doi.org/10.5281/zenodo.6783319

International Best Track Archive for Climate Stewardship (IBTrACS) Project K. R. Knapp et al. https://doi.org/10.25921/82ty-9e16

CyclObs Tropical Cyclones A. Mouche and O. Archer https://cyclobs.ifremer.fr/app/archive/2022/SI/sh082022

Model code and software

WASP turbulent fluxes parameterization for SURFEX 8.0 Marie-Noëlle Bouin https://doi.org/10.5281/zenodo.4557378

Short summary

In numerical models, the turbulent exchanges of heat and momentum at the air–sea interface are not represented explicitly but with parameterisations depending on the surface parameters. A new parameterisation of turbulent fluxes (WASP) has been implemented in the surface model SURFEX v8.1 and validated on four case studies. It combines a close fit to observations including cyclonic winds, a dependency on the wave growth rate, and the possibility of being used in atmosphere–wave coupled models.