Gualbert Oude Essink

• Water Nexus - salt-containing water as a new driver for economy in delta areas: project “Resource analysis and regional water management”

  2015-2018

  Client: NWO STW (Netherlands Organisation for Scientific Research)
  Main project features (3 PhD topics):
  • Rapid modelling: developing a toolbox for quick and comprehensive model construction and scenario development, enabling identification of vulnerabilities and opportunities for water distribution control, and the robustness of the water system against autonomous and anthropogenic changes.
  • Rapid mapping: combining readily available global data and (a minimum of) earthbound data into models for accurate monitoring and prediction of spatial distribution
  • Operational management of regional salt-fresh water resources
  Positions held: Co-promotor three PhDs
  Activities performed: Responsible for modelling tools and giving direction to research

• Rise and fall: strategies for the subsiding and urbanising Mekong Delta (Vietnam) facing increasing water levels, land subsidence and salt water intrusion

  Vietnam, 2014-2018

  Client: NWO (Netherlands Organisation for Scientific Research)
  Main project features: to enhance the capabilities of individuals and organisations to develop sustainable strategies for dealing with groundwater extraction, land subsidence and salt water intrusion in the increasingly urbanising Mekong Delta.
  Positions held: Work package leader and Co-promotor PhD on salt water intrusion in groundwater
  Activities performed: Responsible for coupling modelling tools on land subsidence and salt water intrusion
  

• NatureCoast: Understanding of the hydrogeological processes that are associated with mega-nourishments

  2013-2017

  Client: NWO STW Perspectief 2012
  Main project features: monitoring and modelling the expected changes in the distribution of fresh and salt groundwater in the Sand Engine (a mega- nourishment off the coastline of South-Holland):
  Positions held: Co-promotor Hydrogeology PhD
  Activities performed: Daily Supervision PhD
  

• Exploring groundwater resources on Jurong Island, Singapore

  Singapore, 2013-2014

  Client: PUB (Public Utilities Board)
  Main project features: To assess the feasibility of extracting fresh groundwater water from Jurong Island, assessing the change of the fresh-salt water interface for different scenarios, including a subsidence module.
  Positions held: Hydrogeological expert, advisor numerical modelling variable-density groundwater
  Activities performed: Modelling salt water intrusion and assessing risks of upconing
  

• SWIBANGLA: mitigating salt water intrusion in the coastal zone of Bangladesh

  2013-2014, Bangladesh

  Client: IRC (International Water and Sanitation Centre)
  Main project features: The goal of the project is to investigate the impacts of salt water intrusion in Bangladesh, the main salinization processes, possible mitigation strategies, and the needed tools to provide input to the Water Safety Plans (WSP). The main outcomes of the project are: Key components on salinization issues for Water Safety Plans, suitable mitigation strategies to mitigate the impacts of salt water intrusion, a regional 3D variable-density dependent groundwater model, a Water Quality Monitoring kit, a Smart Phone App to measure Electrical Conductivity, Leaflets containing salinization processes information and Workshops on Modeling and Monitoring.
  Positions held: Scientific reviewer
  Activities performed: Responsible for management activities (coordination, reporting), responsible for progress of project, supervising modelling, time management

• Go Fresh: Measures local freshwater supply SouthwestenDelta

  The Netherlands, 2012-2017

  Client: Knowledge for Climate
  Main project features: GO-FRESH: Geohydrological Opportunities FRESH water supply
  Main goal within GO-FRESH is to improve the use of existing fresh groundwater resources and create new freshwater reserves, thereby increasing regional self-sufficiency and reducing dependence on external freshwater supply. Research already takes place on theoretical feasibility of possible measures. Building on this knowledge, the research goals are: to investigate which measures actually ‘work’ in practice, and to analyse whether such measures are economically feasible. The promising technologies are:
  • Showcase ‘The Freshmaker’; aquifer storage and recovery (ASR) utilizing the potential of sandy creek ridges for water storage
  • Showcase ‘Creek Ridge Infiltration Test’; infiltration via drainage utilizing the potential of sandy creek ridges for water storage
  • Showcase ‘Drains2Buffer’; optimizing the freshwater volume in shallow rainwater lenses
  Positions held: Project Leader
  Activities performed: Responsible for management activities (coordination, reporting), responsible for progress of project, time management

• Netherlands Hydrological Modelling Instrumentarium for Fresh-Salt Groundwater in the Coastal Zone

  The Netherlands, 2007-2009

  Client: De Waterdienst, Ministry of Transport, Public Works and Water Management
  Main project features: Development of a 3D model of Fresh-Salt Groundwater in the Coastal Zone, assessing the effect of climate change on freshwater resources, change in salt load to surface water systems
  Positions held: Project Leader Fresh-Saline Groundwater model
  Activities performed: Manager of project, advice, time manager, expert advice on creation of the model
  

• Salinisation of phreatic groundwater in the Province of Zeeland: a study on strategic water resources management in a changing environment. The focus is on water system analysis of groundwater and surface water resources at the Dutch coastal zone, for both quantity as well as quality issues

  The Netherlands, 2005-2009

  Client: Province of Zeeland
  Main project features: extensive monitoring campaign, 3D modelling tools for a 3D regional variable-density groundwater flow system
  Positions held: Project leader
  Activities performed: Overall manager of project, advice, time manager, expert advice on monitoring campaign and the creation of the 3D model
  

• EC-project: Crystallisation Technologies for Prevention of Salt Water Intrusion.

  The Netherlands, 2002-2004

  Client: European commission
  Main project features: The objective of the project is to develop and test a new cost efficient and environmental-friendly technology to reduce and prevent salt water intrusion into aquifers.
  Positions held: Work package leader
  Activities performed: water system analyses, conceptualization of salinity processes, development of a 3D numerical model describing groundwater flow and grouting processes at an Italian test site (near Bari)
  

• Increasing a freshwater lens below a creek ridge using a controlled artificial recharge and drainage system: a case study in the Netherlands

  Pauw, P.S., Van Baaren, E.S., Visser, M. De Louw, P.G.B., Oude Essink, G.H.P., 2015, Increasing a freshwater lens below a creek ridge using a controlled artificial recharge and drainage system: a case study in the Netherlands, Hydrogeology Journal

• Dunne regenwaterlenzen in zoute kwelgebieden

  De Louw, P.G.B., Oude Essink, G.H.P., Eeman, S., Van Baaren, E.S., Vermue, E., Delsman, J.R., Pauw, P.S., Siemon, B., Gunnink, J.L., Post, V.E.A., 2015, Dunne regenwaterlenzen in zoute kwelgebieden, Landschap, 32, 5-15.

• Integrated assessment of variable density–viscosity groundwater flow for a high temperature mono-well aquifer thermal energy storage (HT-ATES) system in a geothermal reservoir

  Zeghici, R.M., Oude Essink, G.H.P., Hartog, N., & Sommer, W. 2015. Integrated assessment of variable density–viscosity groundwater flow for a high temperature mono-well aquifer thermal energy storage (HT-ATES) system in a geothermal reservoir. Geothermics, 55, 58–68

• Low-Resolution Modeling of Dense Drainage Networks in Confining Layers

  Pauw, P.S., van der Zee, S.E.A.T.M., Leijnse, A., Delsman, J.R., De Louw, P.G.B., de Lange, W.J., Oude Essink, G.H.P. 2014. Low-Resolution Modeling of Dense Drainage Networks in Confining Layers, Ground water, 1-11

• An operational, multi-scale, multi-model system for consensus-based, integrated water management and policy analysis: The Netherlands Hydrological Instrument

  De Lange, W.J., Prinsen, G.F., Hoogewoud, J.C., Veldhuizen, A., Verkaik, J., Oude Essink, G.H.P., van Walsum, P.E.V., Delsman, J.R., Hunink, J.C., Massop, H.T.L., Kroon, T., 2014. An operational, multi-scale, multi-model system for consensus-based, integrated water management and policy analysis: The Netherlands Hydrological Instrument. Environmental Modelling & Software 59, 98–108

• Regional scale impact of tidal forcing on groundwater flow in unconfined coastal aquifers

  Pauw, P.S., Oude Essink, G.H.P., Leijnse, A., Vandenbohede, A., Groen, J., van der Zee, S.E.A.T.M. 2014. Regional scale impact of tidal forcing on groundwater flow in unconfined coastal aquifers, J. Hydrology, 517, 269–283

• Paleo-modeling of coastal saltwater intrusion during the Holocene: an application to the Netherlands

  Delsman, J.R., Hu-a-ng, K.R.M., Vos, P.C., de Louw, P.G.B., Oude Essink, G.H.P., Stuyfzand, P.J., & Bierkens, M.F.P. 2014. Paleo-modeling of coastal saltwater intrusion during the Holocene: an application to the Netherlands. Hydrology and Earth System Sciences, 18(10), 3891–3905

• Uncertainty estimation of end-member mixing using generalized likelihood uncertainty estimation (GLUE), applied in a lowland catchment

  Delsman, J.R., Oude Essink, G.H.P., Beven, K.J., Stuyfzand, P.J. 2013. Uncertainty estimation of end-member mixing using generalized likelihood uncertainty estimation (GLUE), applied in a lowland catchment, Water Resour. Res., 49, 4792–4806

• Modelling climate change effects on a Dutch coastal groundwater system using airborne Electro Magnetic measurements

  Faneca Sànchez, M., Gunnink, J.L., van Baaren, E.S., Oude Essink, G.H.P., Siemon, B., Auken, E., Elderhorst, W., de Louw, P.G.B. 2012. Modelling climate change effects on a Dutch coastal groundwater system using airborne Electro Magnetic measurements, Hydrol. Earth Syst. Sci., 16, 4499-4516

• Groundwater salinization in the Wadden Sea area of the Netherlands; quantifying the effects of climate change, sea level rise and anthropogenic interferences

  Pauw, P.S., De Louw, P.G.B., Oude Essink, G.H.P. 2012. Groundwater salinization in the Wadden Sea area of the Netherlands; quantifying the effects of climate change, sea level rise and anthropogenic interferences, Netherlands Journal of Geosciences, 91-3, 373-383

• Shallow rainwater lenses in deltaic areas with saline seepage

  De Louw, P.G.B., Eeman, S., Siemon, B., Voortman, B.R., Gunnink, J., van Baaren, E.S., and Oude Essink, G.H.P., 2011, Shallow rainwater lenses in deltaic areas with saline seepage, Hydrol. Earth Syst. Sci., 15, 3659-3678

• Upward groundwater flow in boils as the dominant mechanism of salinization in deep polders

  De Louw, P.G.B., Oude Essink, G.H.P., Stuyfzand, P.J., Zee, van der, S.E.A.T.M., 2010, Upward groundwater flow in boils as the dominant mechanism of salinization in deep polders, The Netherlands, J. Hydrol. 394, 494-506

• Effects of climate change on coastal groundwater systems: A modeling study in the Netherlands

  Oude Essink, G.H.P., E.S. van Baaren, and P.G.B. De Louw 2010, Effects of climate change on coastal groundwater systems: A modeling study in the Netherlands, Water Resour. Res., 46, W00F04

• Estimating the depth of fresh and brackish groundwater in a predominantly saline region using geophysical and hydrological methods, Zeeland, the Netherlands

  Goes, B.J.M., Oude Essink, G.H.P., Vernes, R.W. and Sergi, F. 2009. Estimating the depth of fresh and brackish groundwater in a predominantly saline region using geophysical and hydrological methods, Zeeland, the Netherlands, Near Surface Geophysics 401-412

• Impact of sea level rise on groundwater flow regimes. A sensitivity analysis for the Netherlands

  Oude Essink, G.H.P. 1996. Impact of sea level rise on groundwater flow regimes. A sensitivity analysis for the Netherlands. Ph.D. thesis, Delft University of Technology. Delft Studies in Integrated Water Management: no. 7 ISBN 90-407-1330-8. 428 p.

Activities