A complete water cycle model has been constructed for the Copenhagen area (966 km2) in order to study the development of the water cycle during the period 1850-2003. The urban water cycle is quantified in terms of root zone water balance, water supply, waste water, storm water, groundwater flow, and the interactions between these systems. The water cycle is simulated by combining a root-zone model, a grid distribution tool, and a modified Modflow-2000 model using existing flow packages and a new sewer package that simulates the interactions between ground water and sewers (or rain drains). Long time series of hydraulic head, stream flow, and inflow to sewage works are used to calibrate the model parameters. The model has its strength in quantifying interactions between the many subsystems and dissecting impacts from groundwater abstraction, surface infrastructure, and past climate changes on the urban water cycle. It is also the hope that the model will provide a better and more complete overview of the consequences of different water management scenarios. The model concept and selected simulation results is presented.
Modflow and More 2008: Ground Water and Public Policy - Conference Proceedings, 2008, p. 120-124
Main Research Area:
MODFLOW and More 2008: Ground Water and Public Policy
INTERNATIONAL GROUND WATER MODELING CENTER (IGWMC)