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.

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

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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

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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

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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

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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

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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, tob@i-gis.dk