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A Regional Scale Hydrostratigraphy Generated from Geophysical Data of Varying Age, Type, and Quality

Author

Listed:
  • Troels Vilhelmsen

    (Aarhus University)

  • Pernille Marker

    (DTU Department of Environmental Engineering)

  • Nikolaj Foged

    (Aarhus University)

  • Thomas Wernberg

    (NIRAS)

  • Esben Auken

    (Aarhus University)

  • Anders Vest Christiansen

    (Aarhus University)

  • Peter Bauer-Gottwein

    (DTU Department of Environmental Engineering)

  • Steen Christensen

    (Aarhus University)

  • Anne-Sophie Høyer

    (GEUS)

Abstract

In the present study, we show how persistent management and collection of hydrological and geophysical data at a national scale can be combined with innovative analysis methods to generate decision support tools for groundwater and surface water managers. This is exemplified by setting up a regional scale groundwater model in an area with geophysical data of varying age, type, and quality. The structure for the regional model is derived from a newly developed resistivity clay-fraction cluster analysis. This modelling strategy can be used in combination with local detailed geological modelling thus utilizing the detailed expertise locally, while securing a cost-effective (price vs. performance) solution to the numerical simulations of the regional scale water balance. In this way we avoid unwanted boundary effects on the local model simulations due to the presence of artificial numerical boundaries located proximate to the areas of interest. In this application, it is particularly important that boundary conditions are remote, due to the presence of a dense network of buried valley structures. Simulated impacts of groundwater abstraction from two existing well-fields spread through the valley system far beyond the local focus areas of the study.

Suggested Citation

  • Troels Vilhelmsen & Pernille Marker & Nikolaj Foged & Thomas Wernberg & Esben Auken & Anders Vest Christiansen & Peter Bauer-Gottwein & Steen Christensen & Anne-Sophie Høyer, 2019. "A Regional Scale Hydrostratigraphy Generated from Geophysical Data of Varying Age, Type, and Quality," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 33(2), pages 539-553, January.
    • Handle: RePEc:spr:waterr:v:33:y:2019:i:2:d:10.1007_s11269-018-2115-1
    DOI: 10.1007/s11269-018-2115-1
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    References listed on IDEAS

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    1. Aki Artimo & Sami Saraperä & Iikka Ylander, 2008. "Methods for Integrating an Extensive Geodatabase with 3D Modeling and Data Management Tools for the Virttaankangas Artificial Recharge Project, Southwestern Finland," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 22(12), pages 1723-1739, December.
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    Cited by:

    1. Rumph Frederiksen, Rasmus & Molina-Navarro, Eugenio, 2021. "The importance of subsurface drainage on model performance and water balance in an agricultural catchment using SWAT and SWAT-MODFLOW," Agricultural Water Management, Elsevier, vol. 255(C).

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