Articles | Volume 16, issue 4
Development and technical paper
20 Feb 2023
Development and technical paper |  | 20 Feb 2023

Using the two-way nesting technique AGRIF with MARS3D V11.2 to improve hydrodynamics and estimate environmental indicators

Sébastien Petton, Valérie Garnier, Matthieu Caillaud, Laurent Debreu, and Franck Dumas

Model code and software

Hydrodynamic MARS3D V11.2 model coupled with two-nesting AGRIF library (V11.2) Sébastien Petton and Franck Dumas

Short summary
The nesting AGRIF library is implemented in the MARS3D hydrodynamic model, a semi-implicit, free-surface numerical model which uses a time scheme as an alternating-direction implicit (ADI) algorithm. Two applications at the regional and coastal scale are introduced. We compare the two-nesting approach to the classic offline one-way approach, based on an in situ dataset. This method is an efficient means to significantly improve the physical hydrodynamics and unravel ecological challenges.