Impacts of Global Change on the Water Cycle in the Elbe Region - Risks and Options

River Elbe


GLOWA-Elbe Book 2008 (english)

GLOWA-Elbe Book 2005 (german)

| Models | Data

Water Balance Model

Model Description:


WBalMo calculates the water balance between natural discharges and

Model structure

water use in large river basins. As natural discharges at each site is used a


large number of stochastic realizations, of length of the planning period and


based either on measured, but cleaned from water use discharge data or on

Role within GLOWA-Elbe

output from rainfall-runoff-models, using stochastic meteorological data.

Model results

Water use processes include withdrawals and releases, transfers or


management of reservoirs. By variant calculations an optimization of the management rules can be done. Besides a variety of standard model objects freely programmable routines can be used to incorporate any kind of submodels, like demand or assessment functions.

Input Data: Static data: structure of river network (sub catchments, calculation profiles) capacity and management rules of reservoirs/transfers. Dynamic data: amount of withdrawals or releases, minimum required discharges, realizations of discharges at multiple sites and of meteorological data, required for water balance. Parameter of user-defined sub models.

Results: Statistical values of any kind of system variables like discharges, storage of reservoirs, amount of transferred water, realized withdrawals and releases.

Resolution: No restriction on spatial resolution. Time step is one month, but in special cases (flood, water quality sub models) can be used daily time step.

Operating system: Windows

Programming language: Fortran, C++, Avenue

odel run time: 2.5 hours for the whole Elbe river basin and 100 realizations each by 50 years.h



© Legal Notes / Imprint
graefe@pik-potsdam /