Title
Frequency-domain helicopter-borne em survey for delineation of the 3D chloride distribution in Zeeland, the Netherlands
Author
Siemon, B.
van Baaren, E.
Dabekaussen, W.
Delsman, J.
Karaoulis, M.
de Louw, P.
Pauw, P.
Vermaas, T.
Bootsma, H.
Steuer, A.
Gunnink, J.
Essink, G.O.
Meyer, U.
Publication year
2017
Abstract
In the project FRESHEM Zeeland the entire Province of Zeeland in the south-western part of the Netherlands was surveyed using frequency-domain helicopter-borne electromagnetics (FDHEM). The airborne survey of more than 9000 line-km was conducted in 2014-15 by the German Federal Institute for Geosciences and Natural Resources (BGR). Together with the Dutch partners Deltares and TNO, an approach has been developed to translate the FDHEM data into a full 3D mapping of the chloride concentration of an area of about 1800 km². Verification with an independent dataset showed that groundwater salinity can be accurately calculated based on FDHEM measurements and a stochastic lithological model. Using indicator kriging as interpolation method turns out to be suitable to construct a 3D voxel model, revealing high resolution spatial patterns of groundwater salinity.
Subject
Earth / Environmental
GM - Geomodelling
ELSS - Earth, Life and Social Sciences
Geological Survey Netherlands
Geosciences
2015 Energy
Chlorine compounds
Frequency domain analysis
Groundwater
Interpolation
Lithology
Stochastic systems
Surveys
To reference this document use:
http://resolver.tudelft.nl/uuid:8bfb150e-0af1-43b9-a118-52972e6f28ba
TNO identifier
784912
Publisher
European Association of Geoscientists and Engineers, EAGE
ISBN
9781510850804
Source
2nd European Airborne Electromagnetics Conference 2017. 3 September 2017 through 7 September 2017, 146-150
Document type
conference paper