Calibration and Reliability in Groundwater Modelling: Credibility of Modelling

(Proceedings of ModelCARE 2007 Conference, held in Denmark, September 2007). IAHS Publ. 320, 2008, 120-123.

 

Real-time optimisation of groundwater management

 

H. Madsen1, A. K. Falk1, D. Rosbjerg2, H. Madsen3, N. Schr¿der4,
J. Mortensen5, B. Mortensen6, J. Kristensen7, G. Brandt8

1 DHI Water ¥ Environment ¥ Health, Agern AllŽ 5, DK-2970 H¿rsholm, Denmark

hem@dhigroup.com

2 Institute of Environment & Resources, Technical University of Denmark, Building 115, DK-2800 Kongens Lyngby, Denmark

3 Department of Informatics and Mathematical Modelling, Technical University of Denmark, Richard Petersens Plads, Building 321, DK-2800 Kongens Lyngby, Denmark

4 Department of Environment, Society and Spatial Change, Roskilde University, Universitetsvej 1, DK-4000 Roskilde, Denmark

5 Department of Science, Systems and Models, Roskilde University, Universitetsvej 1, DK-4000 Roskilde, Denmark

6 Grundfos A/S, Poul Due Jensens Vej 7, DK-8850 Bjerringbro, Denmark

7 Watertech, S¿ndergade 53, DK-8000 rhus C, Denmark

8 Copenhagen Energy, ¯restads Boulevard 35, DK-2300 K¿benhavn S, Denmark

 

Abstract Due to the steadily increasing pressure on water resources worldwide there is an emergent need to develop techniques that optimise the exploitable water resources, while protecting it from contamination and preventing over-use. To date, optimisation in groundwater management has mainly focused on design problems, including groundwater quality control and remediation. In a new research project, real-time optimisation of groundwater management at well-fields is being addressed. A key element is to integrate real-time observations already logged in SCADA systems with advanced mathematical models for optimisation and control. Real-time, adaptive optimisation and control allow for interactive management of the water resources, providing the ability to respond before the groundwater becomes contaminated. In addition, optimisation can reduce operation costs, reduce the impact of groundwater drawdown at critical locations, and maximise system reliability. The paper presents an overview of the real-time optimisation and control system for well-field management to be developed in the project.

 

Key words  groundwater management; well-field; real-time optimisation; data assimilation; grey-box modelling; water quality sensor