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Public policy support – Modelling and simulation
INRAE scientists and their partners talk about the modelling and simulation activities carried out together to inform public policy on agriculture, food and the environment and to facilitate the management of complex systems.

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Scientists talk about their public policy support activities
Science and green algae: from advice to training for public decision-makers
Patrick Durand has developed a model to simulate nitrate flows from agricultural sources in Brittany, at a time when nitrate…
Patrick Durand
Research Director, Hydrologist, INRAE
Assessing farms’ sustainability with the new IDEA version 4 method
Coordinated by Frédéric Zahm, work on the IDEA method has resulted in the new version 4 …
Frédéric Zahm
Agro-economist, INRAE
Studying the risk to human health from micro and nano plastics via food
Muriel Mercier-Bonin is working on the issue of the persistence of nano- and micro-plastics in the environment …
Muriel Mercier-Bonin
Biologist research director, INRAE
Science to implement the Water Framework Directive
Christine Argillier looks back over 20 years of supporting the implementation of the WFD. Her ambition is to …
Christine Argillier
Research Director, Aquatic ecologist, INRAE
Aquatic ecosystems and global change
Patrick Lambert, an INRAE expert, studies amphihaline migratory fish. He is working at European level for the …
Patrick Lambert
Research engineer, INRAE
Modelling to help manage water and wastewater networks
Yves Le Gat conducts research as part of the Gestion Patrimoniale des Infrastructures liées à l’Eau …
Yves Le Gat
Researcher in Applied Statistics for Infrastructure Asset Management, INRAE
Our partners talk about their collaboration with scientists
Producing climate simulations to forecast water resources
“[…] we have been working on correcting the biases associated with the regional climate models used to produce hydrological…”

Jean-Michel Soubeyrou
Deputy Scientific Director, Climatology and Climate Services Division, Météo-France
From the dossier: The Explore2 project, hydrological projections to adapt water resource management – Open thematic
Lire le témoignage: Producing climate simulations to forecast water resourcesModelling the impact of climate change on groundwater
“[…] In Explore2, I am using the RECHARGE model, which provides […] an estimation of the proportion of rainfall…”

Sandra Lanini
Hydrogeological modeller, BRGM
From the dossier: The Explore2 project, hydrological projections to adapt water resource management – Open thematic
Lire le témoignage: Modelling the impact of climate change on groundwaterA long history of collaboration between science and Schapi in flood forecasting
“The Schapi runs the VIGICRUES network and coordinates flood forecasting on a national scale, in particular with …

Bruno Janet
French Ministry of Ecological Transition and Territorial Cohesion
From the dossier: 30 years of flood prevention research – Open thematic
Lire le témoignage: A long history of collaboration between science and Schapi in flood forecastingModelling and simulations in our dossiers at the interface between science and public policy

Thematic dossier
The Explore2 project, hydrological projections to adapt water resource management
The Explore2 project, to be carried out between 2021 and 2024, aims to describe the climate and water resources for the whole of the 21st century in mainland France…

Thematic dossier
Information systems to facilitate regional management
Data and information systems are a strategic interface that is used by both public policy and research…

Thematic dossier
From the European “Nitrates” Directive to green algae plans in Brittany: INRAE scientists’ contributions
Since the 1970s, researchers at the Institute have been studying the flow of nitrates of agricultural origin from the plot to the catchment area and their impact …
Modelling and simulation projects
Upper Rhine: safety level of dykes
From 2018 to 2020, INRAE carried out a study on the characterisation of extreme flows on the Rhine on behalf of DREAL Grand-Est, with discussions within the International Permanent Commission for the Development of the Upper Rhine in conjunction with the ICPR – International Commission for the Protection of the Rhine (in German, IKSR –…
Project leader(s) :
Michel Lang – HyBV, unité RiverLY, Lyon
Partner(s) :
DREAL Grand-Est, CIPR
IFM-CAP: Modelling water-related issues in the Individual Farm Model for the common agricultural policy model – A feasibility study
For the CAP, and in particular for the 2023-2027 CAP, which incorporates the European Green Pact (EU climate neutrality by 2050), modelling is an essential tool and one that …
Project leader(s) :
Pierre-Alain Jayet – Unité PSAE, Versailles-Grignon
Partner(s) :
JRC-Séville
SPABIO (2022-2025)
This project, developed in conjunction with the PNR de Brière, brings together economists and ecologists from INRAE, CNRS and the University of Aix-Marseille, as well as …
Project leader(s) :
Centre d’Economie de l’Environnement
Partner(s) :
Parc Naturel Régional de Brière

