Permanent Research Engineer position in sediment dynamics numerical modelling (M/F)

Issy-les-Moulineaux, Île-de-France, fr
Company: Ifremer - French Research Institute for Exploitation of the Sea
Category: Food Preparation and Serving Related Occupations
Published on 2021-06-22 07:15:52

Reference:   PV-2021-031

Department/Office : Département Oceanographie et Dynamique des Ecosystemes

Unité de recherche Dynamique des Ecosystèmes Côtiers

Laboratoire Dynamique Hydro-Sédimentaire

Duty station: Brest, Bretagne, FR , France

Starting date on the job :

Deadline for applications : 23/05/2021

The Institute and the recruiting department

A pioneer in ocean science, IFREMER’s cutting-edge research is grounded in sustainable development and open science. Our vision is to advance science, expertise and innovation to:

- Protect and restore the ocean

- Sustainably use marine resources to benefit society

- Create and share ocean data, information & knowledge.

With more than 1,500 personnel spread along the French coastline in more than 20 sites, the Institute explores the 3 great oceans: the Indian, Atlantic and Pacific oceans. A leader in ocean science, IFREMER is managing the French Oceanographic Fleet and its dedicated scientists create ground-breaking technology to push the boundaries of ocean exploration and knowledge, from the abyss to the atmosphere-ocean interface.

Well-established in the international scientific community, our scientists, engineers and technicians are committed to advance knowledge about our planet’s last unexplored frontiers. They provide the science we need for informed decision-making and public policy and they transfer this knowledge and technology to businesses to fulfill public and private needs. Core to our mission is also to strengthen public awareness about the importance of understanding the ocean and its resources, and empowering future generations of leaders through education and outreach national campaigns.

Founded in 1984, IFREMER is a French public organization and its budget approximates 240 million euros. It is operating under the joint authority of the French Ministry for Higher Education, Research and Innovation, the French Ministry for the Ecological and Solidary Transition, and the French Ministry of Agriculture and Food.

General areas of responsibility

The DYNECO (Dynamics of Coastal Ecosystems) research unit is one component of the « Oceanography and Ecosystems Dynamics » department. Its main objective is to study how coastal ecosystems respond to anthropogenic or natural pressures. DYNECO conducts scientific and expert assessment activities in this field. The global approach rests on the analysis of physical and biogeochemical processes and is based on experimentations, in-situ observations and modelling. The main research areas concern: i) dissolved and particulate matter fluxes within marine coastal ecosystems, ii) diversity, functioning and future of communities and of their habitats, iii) perturbation at population scale.

Within DYNECO unit, the Hydro-Sedimentary Dynamics laboratory () studies the hydrodynamic processes and sediment dynamics at different spatial scales (French coasts, bays and estuaries) and time scales (from tidal up to multi-decadal scales). The DHYSED laboratory aims to answer the questions of the DYNECO strategic axes through national and European projects. The DHYSED laboratory investigates sediment processes, sediment fluxes and morphodynamics changes within coastal systems through i) experimental studies on sediment behaviour / sediment processes, in relation with the ecosystem; ii) in situ observations (conducting process-oriented field campaigns and managing long term observation high frequency stations within the COAST-HF network); iii) the development of the MUSTANG sediment transport numerical model, coupled to various hydrodynamics cores (MARS3D, SYMPHONIE, ROMS/CROCO).

Under the responsibility of the head of DHYSED, the successful candidate will be in charge of developing and maintaining fully operational the MUSTANG sediment model.

General areas of responsibility

The successful candidate will be in charge of maintaining at the state of the art and developing the MUSTANG sediment transport model. This numerical tool is a reference model for modelling hydro-sedimentary processes and morphodynamic evolution of mixed sediment in coastal and estuarine systems. This model is coupled with three different hydrodynamic platforms: MARS3D, CROCO (ROMS based) and Symphonie. The recruited engineer will be responsible for maintaining the code operational and easy to couple to different hydrodynamic models, to validate it with test cases and benchmarks. She/he will contribute to the elaboration of the user documentation and tutorials.

This maintenance task is completed with a research and development task. The recruited engineer will contribute to develop new functionalities or implement original approaches for sediment transport processes. She/he will integrate the main numerical developments originating from the MUSTANG community in reference versions.

She/he will also contribute to the coordination of the national and international community working on mixed sediment transport modelling.

Finally, the recruited engineer will contribute to research projects based on the implementation of the MUSTANG model.

This position requires advanced knowledge and skills on sediment transport modelling and numerical methods (numerical schemes, MPI/OMP parallel computing, HPC).

Principal activities

He / she will be responsible for:

  • Developing the MUSTANG numerical model, in collaboration with modellers in the DHYSED laboratory;
  • Managing and consolidating the MUSTANG numerical model through the development of reference tests cases and evaluating model robustness;
  • Adapting MUSTANG interface for keeping the model easily coupled with hydrodynamic models;
  • Contributing to disseminate the numerical model and organize user training sessions, and organize user forum;
  • Contributing to structure the national community on sediment transport modelling, and co-leading the CROCO-sediment working group;
  • Participating to the international dynamics on sediment transport modelling (multi-models: ROMS COAWST, DELFT3D, TELEMAC, SCHISME…), discussing the concepts and sharing benchmarks, tools and methods.
  • Collaborative work environment

  • Internal collaborative relationships:
  • The work will be conducted in close collaboration with several Ifremer research units: DYNECO, Unité Littoral, LOPS (Spatial and Physic Oceanography Lab).

  • External collaborative relationships:
  • The recruited engineer will conduct her/his work in collaboration with our partners at national level (SHOM, IRD, CNRS, universities) and international level (Belgium, Spain, Italy, The Netherlands, UK, USA, New Zealand…) and in strong interaction with the CROCO community.

    Required Knowledge, skills, and characteristics

  • Master or engineer graduate.
  • Professional experience desired.

  • Required knowledge, skills, and characteristics

    Knowledge, skills, and abilities:

  • Solid knowledge of sediment processes and dynamics
  • Strong/Advanced experience on numerical modelling
  • Strong skills in programming languages under intensive computing environments
  • Knowledge on versioning tools
  • Good synthesis, writing and communicating skills
  • Fluent English 
  • Human qualities:

  • Availability and teamwork ability
  • Dynamic and innovative
  • Working rigour
  • Autonomy
  • Scientific and technical curiosity
  • Specific working conditions

  • Full time.
  • Possible boarding on coastal vessels and field missions.
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