A new fresh-saline groundwater map from vintage VES measurements incorporating the national hydrogeological subsurface model (REGIS) in the Netherlands
conference paper
In the Netherlands areas exist with deep fresh-saline groundwater interface (FSI) down to ca. 600 m, in which the fresh water bodies may serve as strategic water reserves. To manage these water reserves knowledge on their thickness is crucial. In the past the maps of the depth of the deep FSI were based on VES measurements, measured mainly in the 60’s-80’s of the last century, and only a few deep wells. The inverted VES models are highly ambiguous, especially for larger depths. During the past 20 years a nation-wide hydrogeological subsurface model was constructed, called REGIS, incorporating many types of information combined in a sophisticated interpolation method. It serves as the background model in many major Dutch groundwater flow calculations. VES measurements are not included in the REGIS model however.
Topics
TNO Identifier
1003514
Source title
SAGEEP 2024, Tucson, Arizona
Pages
1
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