Torben Bach - danish groundwater mapping and geodata management
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The document outlines the Danish groundwater mapping campaign and data management systems. It discusses Denmark's long history of groundwater protection laws and regulations. It then describes the mapping process, data collection and modeling tools that were developed to integrate various data types. Challenges for the future include providing easy access to models and data for various users and enabling dynamic online updating of geological models over time as new data becomes available. Developments currently in progress aim to meet these challenges through online data access directly in modeling software and organization-specific geological model repositories that allow for collaborative online modeling.
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Torben Bach - danish groundwater mapping and geodata management
- 1. …by I•GIS Danish Groundwater Mapping and Geodata Management Presentation outline • The Danish groundwater mapping campaign • A look at developed data systems and tools • After the mapping is over - new set of challanges … • Summing up Torben Bach*, Tom Martlev Pallesen*, Niels-Peter Jensen*, Rolf Johnsen**, Tom Hagensen*** * I•GIS A/S ** Central Denmark Region *** Danish Ministry of Environment, Nature Agency
- 2. …by I•GIS Danish Groundwater Mapping and Geodata Management Denmark in numbers • Area 43.000 km2 • Population 5.500.000 • Highest elevation 176 m • 2/3 farmland
- 3. …by I•GIS Danish Groundwater Mapping and Geodata Management DANISH GROUNDWATER MANAGEMENT IN A HISTORICAL PERSPECTIVE • 1926: First law to protect the groundwater against contamination • 1986: Water environment plan with supervision and improvements of • the groundwater protection • 1994: Plan with further restrictions on pesticide permission • 1998: Water environment plan II with further restrictions • 2000: EU Water Framework Directive or WFD (2000/60/EC) to • establish a framework for the protection of all waters including rivers, • lakes, coastal waters and groundwater. • 2004: Implementation of the Act of Environmental Goals which is the Danish implementation of EU WFD Long tradition on protecting groundwater
- 4. …by I•GIS Danish Groundwater Mapping and Geodata Management THE DANISH LAW OF GROUNDWATER PROTECTION (1998) • Drinking water must be naturally clean and untreated groundwater • Categorized recharge areas • Recharges area of major value (40%) • Recharges area • Recharges area of limited value • Dense groundwater mapping (40%) • Resource today and future • Vulnerability towards pollution • Funding • Taxes on groundwater withdrawals • € 0,07 pr. m3 ~ € 15 mil per year • Time perspective • Mapping finished in 2015, total cost approx. € 250 mil *see Thomsen, R. & Sondergaard, V (Tech. Ed) & Klee, P. (Ed.), 2013. Greater water security with groundwater - Groundwater mapping and sustainable groundwater management. The Rethink Water network and Danish Water Forum white papers, Copenhagen. Available at www.rethinkwater.dk”
- 5. …by I•GIS Danish Groundwater Mapping and Geodata Management ADMINISTRATION OF MAPPING The Ministry of the Environment, Nature Agency • Funding is used through a multi disciplinary EU-framework agreement with 15 private consultants • Recommendations for future use and protection of the water resources The Municipalities • Manage and administer regulations • Execute the recommendations through detailed protection plans to ensure naturally clean water supply Examples of other stakeholders and areas benefitting from the results : • Danish water utilities • Danish Regions – contaminated soil • The Danish Geological Survey – GEUS • City and infrastucture planning …many groups benefit from the geological models and data generated
- 6. …by I•GIS Danish Groundwater Mapping and Geodata Management *Modified after Thomsen, R. & Sondergaard, V (Tech. Ed) & Klee, P. (Ed.), 2013. Greater water security with groundwater - Groundwater mapping and sustainable groundwater management. The Rethink Water network and Danish Water Forum white papers, Copenhagen. Available at www.rethinkwater.dk” A mapping process with tools and supporting data management has been developed 1 3 2 4Data Collection Data Processing 3D Geological Modelling Hydrological Flow Modelling
- 7. …by I•GIS Danish Groundwater Mapping and Geodata Management Geophysical Mapping Technologies Software Tools and Databases SkyTEM CVES Seismic PACES *See J.C. Refsgaard et al. GROUND WATER 48, no. 5: 633–648 New Tools and Technologies • New surveying technologies • New software tools • Backend information logistics • An Integrated water groundwater resource management system SW Tools and Databases • Seamless integration • Ensures traceability
- 8. …by I•GIS Danish Groundwater Mapping and Geodata Management NEW DATABASES • GERDA: Geophysical database. • Jupiter. Borehole database • Model Database. Geological models. All open and free - ensures a GW management using the best data.
- 9. …by I•GIS Danish Groundwater Mapping and Geodata Management NEW SOFTWARE TOOLS • Commercial Software, developed as part of the mapping campaign. • Seamlessly integrated and through underlying data structures. • A tested and proven fast mapping process, from geophysical data to geological knowledge and hydrological model. GeoScene3D. 3D data integration and geological modelling. • The geologists go-to tool • integrated modeling using all available data types and knowledge in an area. • Visualization of geoelectrical data, seismic data, chemical data, boreholes, logs, infrastructure etc. in one 3D view. • Integrated views on 2D cross-sections, GIS and full 3D • Full support of a variety of data formats, including GERDA and Jupiter • Tools supporting assisted for fast AEM interpretation and export to further processing in flow modelling etc. • Developed by I•GIS Workbench: Geoelectrical data processing and inversion. • The geophysicist go-to tool • fast QC, processing, inversion and geoelectrical data • Integration of state-of-the-art numerical analysis with GIS and database management • Stores data and inverted models results in GERDA format • Developed by Aarhus University
- 10. …by I•GIS Danish Groundwater Mapping and Geodata Management The mapping campaign is now over –new challenges ahead…. • Easy Access to models and data for administrators in municipalities • …non technical users with administrative responsibilities • …facilitate information sharing to politicians and normal citizen • …Danish Regions working with soil contamination • …Large infrastructure projects, e.g. metro • Online updating of geological models • …new boreholes and geophysical data will become available over time • ...the geological model repositories at GEUS are static • Organizational specific repositories • …need for organization specific “sandbox” to work in • …not all types of geological models are uploaded to GEUS. • E.g. at private consultancies, small contamination models, temporary draft models, or non-public models There is a need for some dynamic and less static geological model repository
- 11. …by I•GIS Danish Groundwater Mapping and Geodata Management In cooperation of a set of Danish Regions, The Ministry of the Environmental and a series of progressive municipalities are developing a new set of tools that compliment the existing systems to meet these challenges. The Goal: To combine the intuitive 3D modelling software GeoScene3D, with a dynamic, model repository enabling easy access to models and data, easy sharing AND easy updating of models. Municipality Nature Agency Waterworks Private Consultant
- 12. …by I•GIS Danish Groundwater Mapping and Geodata Management Developments currently in progress to overcome these challenges…. • Step1: Online data accessible directly from GeoScene3D • For easy of use and avoiding technical issues • For updated data in the modelling • Step2: Organization specific geological model repository • A sandbox for models of various sizes, quality and targets • Administered by the user organization. • Shareable with outsiders, utilizing user permission roles (Read/Write/Administrator) • Step3: Update models directly in online repository through GeoScene3D • Online Geological Modelling • Sharing models between organisations and stakeholdes while they are being constructed • “Dynamic modelling”
- 13. …by I•GIS Danish Groundwater Mapping and Geodata Management Step1: Online data accessible directly from GeoScene3D Organizational Specific GeoCloud Currently implemented: • Geological Survey of Denmark and Greenland • The official GERDA and JUPITER • Ministry of the Environment, Nature Agency • Central Region • Municipality of Aarhus GERDA Geophysics JUPITER Boreholes 2D Grids DEM Geology Rainfall GIS Maps 3D Grids Geophysics Voxel Models GEOGIS Chemestry Completed
- 14. …by I•GIS Danish Groundwater Mapping and Geodata Management Step2: Organization specific data and geological model repository Online Repository at www.geocloud.dk Library of existing models Startup Templates for new models Enables : • …fast access to existing models • …easy start on new models with predefined • GIS Maps & DEM data • Wells & Chemistry • Etc. Completed
- 15. …by I•GIS Danish Groundwater Mapping and Geodata Management Step3: Update models directly in online repository through GeoScene3D Direct Online Modelling • Collaboration on modelling projects • Fast information to stakeholders • Web access to work progress Modelling Project TO DO
- 16. …by I•GIS Danish Groundwater Mapping and Geodata Management The road a head… Develop tools an IT infrastructure for mapping Ensuring distribution and easy access Ensure updated models
- 17. …by I•GIS Summing Up We have shown • Overview of the data management in Danish groundwater mapping campaign • A look at developed data systems and tools • A look at new tools in development for the next step in DK groundwater management • Come join us in our efforts and development Thank you! For further information, please contact Torben Bach, [email protected]