1. HAMMAMET CASE STUDY PROGRESS September 2004 Realization of an Hydrogeologic Information System of Nabeul-Hammamet region

2. CONTENTS OBJECTIVES CONCLUSION PRODUCTS / REALIZATION HYDROGEOLOGIC INFORMATION SYSTEM

3. OBJECTIVES Realization of a geographic database : 33 vector layers 3 raster data Realization of an environmental database Realization of a socio-economic database in order to understand the social behaviour (SUMER) Realization of an hydrogeologic, hydrologic and hydrodynamic database in order to determine the: Input of WaterWare Input of Telemac   Hydrological characteristics   Hydrogeological characteristics   Hydrodynamic characteristics

4. Primary data Collection Bibliography Satellite map Map (topo,soil…) Hydrogeologic data Socio-economic data Meteorological data Analysis and data Processing Geographic Information Conception WaterWare METHODOLOGY Telemac Despite the availability of many data, their integration is lacking via the WEB

5. PRODUCTS / REALIZATION

6. Corine land cover BIBLIOGRAPHY FIELD WORK Analysis and synthesis Data collection and validation Aerial photos 2000 Spot image 1988 Technical report GEOGRAPHIC DATABASE GEOGRAPHIC DATABASE Raster DATA: THEMATIC MAP: Soil map Marine map Topographic map Geologic map Soil Type Bathymetry Contour line, road network Railway, bench mark… Lithology, tectonic Landuse map

7. Water use:   Agriculture   Domestic   Touristic Increase Catchment areas : Nodes: Aquifer: 12 catchment areas Dense Drainage network Lithology: mudstone Area = 133Km² Lithology = plio-quaternary State = overexploitated Groundwater storage = 25MCM / year Exploitation = 18MCM / year Number of assessed wells = 1544 wells Demography: Population: 68740 inhabitants Density: 208 inhabitants/km² 8 mountain dams 6 mountain lakes 1544 wells HYDROGEOLOGIC DATABASE

8. Legend 50-100m 200-250m 250-300m 300-350 100-150m 150-200m 400-450m 350-400 0-50m Limite du BV Drainage Digital Elevation Model of the drainage basin of Sidi Khlas Hydrologic study of the catchment areas Catchment geometry Catchment relief Drainage network Water debit in the catchments

9. Water nodes   Dams: name, coordinates, sector, year of construction, storage capacity, irrigated area, inflow water, name of catchment…   Collection of historic data related to observation wells in the phreatic water table   Mountains Lakes: name, coordinates, realization year, name of catchment, area of the catchment, storage capacity, delegation…   Observation well: name, coordinates, year, dry residue, standing water level… Hydrogeologic database   Storage of the data   Easy access to the data   Output and input data in Real-Time   Collection of 1544 wells built in the Hammamet region: complete information is available concerning: wells depth, diameter, usage, exploitation, equipment, standing water level, dry residue…

10. LAND USE CHANGE

11. THE METHODOLOGY OF THE CARTOGRAPHIC EDITION LAND USE MAP Spot XS Agricultural environment Natural environment Artificial environment Arable land Permanent crops Heterogeneous agricultural Urban area Industrial and commercial area Dump and mine Artificial and non agriculture area Inland waters Forest Beach Sebkha Reservoir Pastural Photo-interprtation & textural treatment LAND USE MAP Aerial photo Corine land cover classification

12. Land use map (1988) Land use map (2000)

13. Etat 2000 Etat 88 % area 2000% area 88 Area 2000 (m²) Area 88 (m²)LevelCode 6,663,55 3,422,319544683,476554076,25Urban fabric11 Artificial environment 3,161,158812707,913272792,53 Industrial, commercial and transport units 12 0,080,09215684,12264909,22 Mine, dump and constrution sites 13 61,4167,28 24,3520,7067885626,6858796877,57Arable land21 Agricultural environmental 35,5543,4699135230,26123473281,75 crops Permanent22 1,513,124209495,878865746,20 Heterogeneous agricultural areas 24 29,8727,46 21,1521,7658975858,9161807266,69Forest31 Natural environmental 7,855,1121876145,2814526685,59 Shrubs and/or herbacus vegetation associations 32 0,870,582438902,351661072,45 Open spaces with little or no vegetation 33 2,061,71 1,360,253782161,66717958,04Inland waters51 0,711,461966931,054136225,04Marine waters52 100,00 278843427,56284076891,35Total STATISTICAL LAND USE CHANGE

15. WaterWare nodes chart well touristic area locality study area dam gettar area lackes irrigated area legend

16. MAIN IDEA OF THE HYDROGEOLOGIC INFORMATION SYSTEM Hydrogeologic Information System Hydrologic dataHydrogeologic data Environmental dataMeteorological data   Characteristics of the catchments area   Management of the catchments area   Management of the regions   Determination of the hydrologic characteristics   Calculate the inflow Water in each Catchment   Characteristics of 1544 Well   Dam and lacke characteristics   Climat data: Temperature Rainfall Wind Evaporation   Oceanographic data: Swell Tidal Wave   Treatment station plant Generality of STEP Affluents STEP Effluents STEP   Hazardous substances   Hydrogeologic characteristics of the water table

25. SOCIO-ECONOMIC DATABASE ValeurUnitéNom de l’indicateur 2,3%o /yearPopulation Growth Rate 3,1%o/yearMigratory Rate 208Number of People / km2Population Density 5,5%o/yearCrude Death Rate 16,9%o/yearCrude Birth Date 72,9yearsLife Expectancy at Birth 1,3%Growth of G.D.P. 48,2%Activity Rate 2086MILLION EUROAgri. Income Distr. by the Main Types of Produc. 4826MILLION EUROInds. Income Distr. by the Main Types of Produc. 39%Percentage of Tertiary Employment 1100MILLION EUROTourism Income Contribution to the Reg. Product 0,273EURO/M3Water Price for the Domestic Use 0,041EURO/M3Water Price for the Agriculture Use 0,506EURO/M3Water Price for the Industry 0,506EUROWater Price for the Tourism Units 9MILLION EUROWater Treatment Investments 8MILLION EUROReservoir Storage Investments 230MILLION EUROWater Distribution and Use Systems Investments 110liters/dayWater Consumption per capita 100liters/dayDomestic Water Consumption per capita 80liters/dayCommercial Water Consumption per capita 820liters/dayAgricultural Water Consumption per capita 417liters/dayIndustrial Water Consumption per capita

27. Extension of the Hydrogeologic Information System   Use of a powerful Data Base System Management (Access is limited about storage capacity and data security)   Integration of a statistic module for designing graphs using some of the data base’s stored Decision Support System (DSS)

28. INTEREST OF THE HYDROGEOLOGIC INFORMATION SYSTEM   Possibility of generalization of this system to the whole Tunisia   A Data Bank with a maximum of data about region’s feature (hydrological, hydrogeological, environmental, socioeconomic, meteorological,soil, GIS data…)   Regroup and organize data in the same frame. The scatting of the hydrogeological data about the catchment area will be a hurdle behind researches   Update will be very easy since data will be centralized   Simulation of water inflow in the catchment   Conception allowing making additions of new frames and modules   We can manage a SHP files without using ArcView

29. SUMMARY   Geographic database:   33 layers SHP and 3 raster data   Land use map   Iso-salinity, iso-piezometric and iso-depth map   Hydrogeological database:   Information about 1544 wells (depht, standing water level, salinity,…)   Information about the water table (phreatic and profond)   Information about nodes:   Lake, dam…   Observation well, bore hole…   Socio-economic database: socio-economic dynamic (population, migration, demography increases…)   Vectors layers and raster data technical report   Hydrological technical report   Determination of the inputs user in WaterWare Realized works:

30. THANK YOU FOR YOUR ATTENTION!