Monitoring freshwater lenses using the slimflex

P. S. Pauw*, E. S. Van Baaren, P. G.B. De Louw, P. D. Doornenbal, Gualbert Oude Essink

*Corresponding author for this work

Research output: Contribution to conferencePaperAcademic

Abstract

A recently developed slim and flexible electromagnetic (EM) borehole logging tool has been used to further monitor the development of a freshwater lens in tidal creek deposits upon artificial groundwater recharge. The monitoring is an extension of the field experiment described by Pauw et al. (2015), which was aimed at increase the freshwater lens to increase freshwater supply. The EM borehole logging tool, called the Slimflex, can be utilized up to small, 1-inch observation wells (in case properly installed). The results of the monitoring indicate ongoing freshening as a result of the artificial recharge. The speed of the freshening is lower compared to the numerical groundwater model results. This can be attributed to the presence of low-permeable clay lenses in the subsurface.

Original languageEnglish
Publication statusPublished - 1 Jan 2016
Event22nd European Meeting of Environmental and Engineering Geophysics, Near Surface Geoscience 2016 - Barcelona, Spain
Duration: 4 Sept 20168 Sept 2016

Conference

Conference22nd European Meeting of Environmental and Engineering Geophysics, Near Surface Geoscience 2016
Country/TerritorySpain
CityBarcelona
Period4/09/168/09/16

Fingerprint

Dive into the research topics of 'Monitoring freshwater lenses using the slimflex'. Together they form a unique fingerprint.

Cite this