Digital technologies for subsurface water distribution modelling

Digital models that display and predict subsurface water distribution                                                      PhD-candidates Thijs Hendrikx and Ignacio Farias Gutierrez work on the development of coupled groundwater-surface water models that allow for the calculation of current and future distribution of fresh, brackish and saline groundwater and the impact of different measures, such as brackish groundwater extraction or subsurface brine disposal, on this distribution (see figure 1). This work is performed in a collaboration between Utrecht University and Deltares, under the supervision of Prof. Marc Bierkens, dr. Gualbert Oude Essink, dr. Perry de Louw and  dr. Marios Karaoulis.

Figure 1. Example output of the model: an overview of the Cl- concentration (g/L) in surface and subsurface water resources

Scaling between the regional and local scale                                                                                                    The focus of the model development is on the development of groundwater-surface water models that can seamlessly scale between the regional and local scale. This allows to model the impact of local measures, such as groundwater withdrawal, brine disposal and aquifer storage and recovery, on the regional water distribution. These models will then be combined with research from the other work packages to design regionally self-sufficient smart water grids and aid their day to day operational water management. Methods for the operational monitoring and management of fresh, brackish and saline groundwater resources are now lacking. Therefore, a generic toolbox will be designed that supports subsurface water management by combining modelling and innovative in-situ field data.

Brackish water extraction and brine management                                                                                              To further support future management of fresh and brackish groundwater resources, also the effect of brackish water extraction and the injection of brines in the subsurface on the subsurface water distribution is determined experimentally. For this, Thijs and Ignacio connect to for instance the pilot ‘Brackish groundwater extraction’ of the drinking water supplier Dunea in the Province of South-Holland (see figure 2). The integration of this research on brines with the research results on risk assessment and treatment of brines from the other AquaConnect researchers will result in a future-proof approach for brine management.

 

Figure 2. Schematic of the Dunea pilot ‘Brackish groundwater extraction’. For more information on this pilot: https://www.dunea.nl/algemeen/life-freshman

Contact

Utrecht University
Department of Geosciences
Princetonlaan 8a
3584CB Utrecht
Building: Vening Meineszgebouw A
info@aquaconnect.nu

Recent research updates

AquaConnect connects its scientific research to the research questions of regional end-users in different regions...
On September 15, AquaConnect officially started! On September 30, the consortium gathered for the first...
On May 20th, the H2O Waternetwerk organized an online seminar to discuss the challenges in...

Get in touch with us