Eau-dyssée is a project of integrated modelling of the water system drawing on the coupling of existing models.

To understand the global functioning of the water system, models of agronomy, surface, transport (and reactions) in the unsaturated zone, the aquifer and the river, and economy were coupled.

Several applications combining two or three of these models have already been achieved. The aim of the Eau-dyssée project is to take advantage of these efforts within an on-going and progressive structure by benefiting from the opportunities of the external couplers.

Eau-dyssée uses the palm.png coupler of the Cerfacs.

The Eau-dyssée project is being supported for some years by the PIREN-Seine, the CNRS (particularly through a CNRS-financed post-PhD position) and the INSU through the support received by the EC2CO.

The EC2CO - Eau-dyssée 2009 project has enabled a collaboration between the Geosciences Department of Mines-ParisTech, the UMR-Sisyphe, Météo-France, four teams from the INRA and the CEMAGREF of Lyon and Antony.


April 2010

  • Organisation of the seminar Hydrosystem Modelling, 22nd and 23rd April 2010
  • First interactive coupling between the Stics new version and MODCOU via Palm. The first results have been presented on the Stics conference. There is a single Stics plot so far, with a limitation of the irrigation according to a threatening piezometric level (see the presentation).
  • Presentation of the Eau-dyssée project to PIREN-SEINE 2010 conference
  • PIREN-Seine 2010 reports :
    • The development of Eau-dyssée hydrosystem integrated model, Habets et al.
    • Contribution of river hydraulical modelling to the quantification of exchanges between the aquifer and the river in a regional hydrological model, Saleh et al.
  • Participation in the conference Computational Method in Water Resources, Barcelona, June 2010, and acceptance of three long abstracts :
    •  Improvement of the interactions between the unsaturated and the saturated zones: impact on pollutant transfer, Philippe et al.
    •  Contribution of 1d river flow modeling to the quantification of stream-aquifer interactions in a regional hydrological model, Saleh et al.
    •  Assessing the contribution of the main aquifer units of the loire basin to river discharge during low flow, Monteil et al.


August 2009

The new version of the agronomic model  developed by the INRA Avignon is almost complete. As the model is applied to plot scale (a crop, a type of soil, a weather), it is necessary to create an upper layer for simulating the whole basin (different crops and rotations, different types of soil, weather variability, ...). The creation of this upper layer is underway.

  • Météo-France has achieved the first couplings between Surfex new surface model and the version of MODCOU used in SIM-France.
  • Evolution of the current version of Eau-dyssée.
  • Modification of the code to have a single version working with or without Palm.
  • Introduction of RAPID river model, of a model of convective transport in aquifer, and of interactions between the aquifer and the unsaturated zone.






Documents (for the links please see the french page)

Link to EC2CO 2009 project
Link to the presentation leaflet of the Geosciences department
Link to the oral presentations of the 4th June 2009 meeting
Introduction and History
Principle of coupling via Palm and illustration with MODCOU hydrological model
Link to PIREN-Seine reports on the multi-disciplinary modelling on the Seine basin
Development of MODCOU hydrological model in the frame of Eau-dyssée
Development of RAPID routing model in river
Economical modelling of the relations between agriculture and environment at the scale of the Seine basin
Modelling of pesticide transfer in the ZNS
Considering aquifer fluctuations


Contact : florence.habets@mines-paristech.fr