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Environmental Information Systems

Representation and processing of spatial dynamics in hydrology -
Spatial analysis for air quality modeling - TIS land use management

 

The application of the Industrial risk assessment and environmental management research subject to the scale of a geographic territory, as defined by local authorities and government (metropolitan areas, cities, counties, state, etc... ) brings out the need for land use management tools. These must be well suited for the management of both human and natural activities.
There currently is a high demand in management and tracking of waterways in the Rhône-Alpes region. The French Water Act is at the origin of numerous operations of diagnosis of most waterways and imposes quality goals to be reached in the coming decades.

The processing of this field requires many specialized topics:

    Spatial dynamics processing, in particular in the domain of water and diffuse or accidental pollutions.
    Quality control of geographic data, geomatics and metadata.
    Creation and development of GIS in water and landscape management.
    Knowledge of source pollution reduction techniques (sharing, grouping of effluent treatment installations, ...)
The ENSM.SE is in charge of a regional program of research on the development and application of GIS in the field of environmental sciences. It is a leader of the regional network on GIS in Rhône-Alpes called SIGURA.

Representation and processing of spatial dynamics in hydrology

Pr. D. Graillot, Dr. R. Dechomets, Pr. Ph. Davoine, Dr. M. Batton-Hubert, Ing. A. Tardy, Ing. A. Pauze

Keywords

Geographic Information Systems, Hydrological model, Spatial analysis, Water resources, Management, Hydrology / Hydrogeology, Pollution, multiphase flow, Dispersivity

Objectives

    Design a decision support system for water resources management compliant to French regulation.
    Enable the model to take into account temporal and spatial variability of the hydrological data.
    Estimation of water resources on ungauged watersheds and bassins.
    Protection of groundwater; protective zones
    Rehabilitation of industrial sites along river in alluvium (Gravel pits exploitation)
    Appropriated modeling of multiphasic hydrocarbon pollutions (LNAPL) in the subsurface media

Methodology

    Coupling of GIS with hydrological model
    Estimating the minimal spatial resolution required of data input
    dentification of water resource vulnerability (time of transfer of a pollution)
    Coupling of infiltration models in the vadose zone to propagation models in the saturated zone in hydrogeology
    Fitting of dispersivity coefficients in hydrogeological setting
    Introduction of Bézier shapes in Analytic Element Modeling

Recent and on-going thesis subjects

    Spatial modeling for integrated water resources management
    Application to superficial water flow simulation, nitrate filtering effects of natural vegetation, protection of wetlands

    by F. Laurent
    Oct. 1996

    Spatial analysis for the risk assessment of hydrocarbon pollution in groundwater
    Modeling of the propagation of multiphasic pollutions; influence of the tracing scale on the coefficients of dispersion

    by W. Anker
    Nov. 1997

    Compared analysis of numerical hydrogeological models by discrete and analytic methods

    by Ph. Le Grand, M.S.
    Due end. 2001

    Coupling of GIS and hydrodynamic models for characterizing interactions between rivers and aquifers
    Application to the rehabilitation of gravel pits along the river Loire

    by D. Mimoun
    Due end. 2002

Partners

    Ecole des Mines de Paris
    Moscow State University
    University of Minnesota
    IRD
    Parc Naturel du Pilat
    Region Rhône-Alpes
    INSA Lyon
    INP Grenoble
    Cémagref
    Université Jean Monnet
    CNRS (Research group 1041)

Spatial analysis for air quality modeling

Dr. M. Batton-Hubert, Ing. A. Pauze

Keywords

Geographic Information Systems, Spatial analysis, Air quality, Urban atmospheric pollutants, air quality measuring, chemical microsensors

Objectives

Introduce a decision support system tool to French Air Quality Supervision Network Managers involved in the application of air regulations and European directives.

Methodology

    Creation of chemical microsensors in order to bring a global information on the pollution level ( concentrations of CO, NO, NO2 )
    Signal processing (variation of conductance vs. sensor temperature)
    Modeling of micrometeorology
    Multinesting modeling
    Space- and time- analysis of the evolution of urban emissions: identification, quantification, distribution and modeling
    Coupling of model to GIS

Recent and on-going thesis subjects

    Interpretation of the urban atmospheric pollutant measurements based on emissions analysis and modeling
    Application to the metropolitan area of Saint-Etienne

    by G. Mounier
    Due end 2001

Partners

    AMPASEL
    EPF Lausanne
    Ecole Centrale de Lyon
    Ecole Centrale de Nantes
    ERIEE, Ecole des Mines d'Alès
    Université de Roanne

Territorial Information Systems (TIS): GIS applied to land use management

Pr. D. Graillot, Dr. R. Dechomets, Dr. M. Batton-Hubert, Ing. A. Pauze

Keywords

Risk Analysis, Spatial decision support system, visualization, Land use management, industrial wastewater treatment, Geographic Information Systems

Objectives

    Evaluation of quality criteria of the geographic information in GIS
    Providing a comprehensive visualization to the end user: regulators, companies, public authorities, citizens, ...
    Develop approprite tools for the optimization of land use management at the local scale

Methodology

    Production of specific databases dedicated to type of activities ( industrial, tourism, water supply, ...) and to decision levels
    Mapping of hydrological vulnerability indicators and parameters
    Thematic, multi-critria mapping
    Automated learning process for determining the criteria preferences of decision makers
    Management of uncertainty and ambiguity

Recent and on-going thesis subjects

    Ambiguity and uncertainty in GIS design
    Application to land use management for industrial wastewater handling in mechanical industry

    by V. Roche
    Due end 2000

Partners

    Université de Montréal - Faculté d'aménagement / Institut d'urbanisme
    Institut d'Urbanisme de Lyon (IUL)

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