Informations générales
Intitulé de l'offre : Researcher (M/F) for the study of scale interactions in the ocean (theory/numerical modeling) (H/F)
Référence : UMR5566-YVEMOR0-003
Nombre de Postes : 1
Lieu de travail : TOULOUSE
Date de publication : lundi 1 décembre 2025
Type de contrat : Chercheur en contrat CDD
Durée du contrat : 14 mois
Date d'embauche prévue : 1 avril 2026
Quotité de travail : Complet
Rémunération : between 3041€ and 4396€ gross monthly salary depending on experience
Niveau d'études souhaité : Doctorat
Expérience souhaitée : Indifférent
Section(s) CN : 19 - Système Terre : enveloppes superficielles
Missions
Set up numerical simulations using the CROCO-NS code for different configurations and analyze the results by developing diagnostics highlighting scale interactions.
Activités
Activity 1: Numerical Simulations of the Strait of Gibraltar Region
In cooperation with the project teams (LEGOS, LAéro, and other project participants):
Set up configurations of the CROCO-NS model and optimize them to reduce computational cost. The configurations will be academic and realistic;
Define and then code (online or offline) a number of diagnostics to analyze scale interactions (turbulent cascade, mixing) and their impacts on the characteristics of the Mediterranean gravity current and the generation of Meddies (Mediterranean vortices);
An important criterion will be based on monitoring potential vorticity and its evolution during turbulent phases by analyzing the respective impacts of diapycnal mixing and bottom friction on the dynamic characteristics of a gravity current.
Activity 2: Participate in the discussion on extending the concept of potential vorticity to non-hydrostatic flows:
Fundamental studies on the evolution of potential vorticity in non-hydrostatic regimes;
Performance and analysis of numerical simulations of turbulent cascades. Identification of diabatic transformation zones (related to viscosity and density mixing).
Compétences
Knowledge/Expertise: Numerical modeling for hydrodynamics and ocean circulation; numerical analysis; understanding of hydrodynamic processes from small to geostrophic scales. PhD level in physical oceanography or fluid mechanics.
Skills: Programming of numerical codes; analysis of physical and process data.
Personal Qualities: Teamwork; scientific rigor; creativity; autonomy in applying skills.
Contexte de travail
The position is part of the MOTIONS project, which aims to prepare the next generation of numerical models for ocean dynamics. These models will incorporate local refinements in key areas where very small-scale (non-hydrostatic) dynamics are dominant and can be modeled directly. The project's main objective is to implement this model integration and analyze the continuity of physical processes during downscaling.
Contraintes et risques
Full-time, 38.5 hours/week. Office work on a computer.