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Environment

The environment research area

The environment research area is part of the MODEST Challenge. It lies at the crossroads of transverse axes “Data assimilation and optimization” and “Uncertainties“.

Within this axis, CERFACS teams conduct scientific studies in various fields of geosciences. Researchers and engineers develop modeling tools,  implement data assimilation methods, run coupled models (multi-physical and / or multi-dimensional) and study the sources of uncertainty on systems. One goal is to apply this research in operational systems in a national and international context.

The methods of applied mathematics used here,  such as coupling or data assimilation,  are at the center of research works in the fields of oceanography, atmospheric chemistry, hydrology and forest fires.

Hydrology and hydraulics

Flood forecasting is a major natural hazard for the safety of goods and people. Actors in risk management and stakeholders in water resource management feature modeling tools and in situ observation network to simulate the flow dynamics. The capabilities of hydrological and hydrodynamic models are limited by several factors of uncertainty related to the description of the bathymetry / topography, hydraulic and hydrological parameters, or the terms of forcings such as hydrological flows and rainfall. These uncertainties can be reduced through data assimilation (in-situ and satellite), as implemented in the DAMP platform (Data Assimilation with MASCARET Platform).

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Forest fires

Predicting the behavior of a large-scale fire depends on a semi-empirical modeling of the propagation of a front (i.e. the interface between burned and unburned areas) involving the vegetation data description, geomorphology and meteorology, however tainted by various sources of error. CERFACS develops the ensemble data assimilation system  FIREFLY to sequentially correct the fire front parameters and position, and thus improve the predictive ability of the propagation models over the acquisition of observations on the front position.

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NEWS

Trophy of the Digital Simulation and Artificial intelligence 2020 – Co design category

Jérôme DOMBARD |  27 October 2020

The "Usine Digitale" magazine and Teratec awarded the Digital Simulation and Artificial intelligence Trophy 2020 category co-design to our joint project about the first LES of a full engine with Akira Tech and Safran. More information on Acknowledgments: these results are part of the ATOM project led by SafranTech which received funding from the DGAC, French Civil Aviation Authority, and Safran under grant agreement No 2018-39.Read more


Young PhD day (JDD) – Thursday 8 October 2020

Brigitte Yzel |  24 September 2020

  Ph.D. Students' Day (JDD 2020) Thursday 8 October 2020 Virtual event open to our partners and associates   Planning   The 2020 edition of the PhD Students' Day will take place on October 8th, 2020. This year, this day of the PhD students of the Cerfacs, will take place mainly in visio in order to respect all the health safety measures relating to Covid-19. This day will be held in a virtual way through oral presentations filmed and broadcast on a private link, which we will distribute to all participants. Everyone will thus be able to discover at a distance the subjects developed by the doctoral students. At the same time, the "Posters session" will be opened on the morning of the JDD, by sending all the posters in pdf format by e-mail to all the participants for consultation, and by opening the "50-minute question session" on a channel whose links we will send you. This will allow participants to ask questions about the posters of the session. Finally, we have included in this 5th edition a great novelty, by allowing several students to present their subject in the popularised form of "My thesis in 3 minutes", guided by Matthieu Pouget, actor and theatre director. This day will end with the vote for the "Best poster" and the "Best presentation of My thesis in 3 minutes". Participation in the event is free of charge. However, for logistical reasons, registration, only by invitation, is mandatory.   Organising Committee:  Scientific committee  Nicolas Venkovic Victor Xing Inscription &  information Jade Schweiger Brigitte Yzel  Read more

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