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AlterrAqua, a regional GIS based modelling system
Gerrit Hendriksen1, Frank van der Bolt1, Pim Dik1, Piet Groenendijk1, Paul van Walsum and Ab Veldhuizen1
Introduction AlterrAqua
Introduction SIMGRO
• The toolbox AlterrAqua enables users to implement regional
hydrological models using a set of standard databases
(such as soil, land use and elevation maps) and local data,
for instance derived from water boards.
• Based on the hydrological model chosen AlterrAqua is set
up with a set of predefined forms and tools that control data
consistency checks, model schematization, output
presentation.
• Models as SIMGRO, multi-SWAP, Animo and SOBEK can
be provided with specific input necessary to run the model.
• Integrated water resources management often requires an
integrated model to predict interactions between plantatmosphere, soil water, groundwater and surface water.
• SIMGRO supports the evaluation of water management,
climate change impacts, policy options and real time control.
• SIMGRO is an advanced rainfall-runoff model based upon a
number of modules:
• Modelling of surface water
• Modelling of the unsaturated zone
• Modelling of the saturated zone
Geographical data
AlterrAqua
Hydrological
model
Stream
network
data
Import
schematised
models
DEM
Soil
data
Land use
Consistency
Checks,
parameterisation,
calibration
SIMGRO multi-SWAP2
realised
Geohydrological data
Initiated
Knowledge
tables
Post Processing
Impact
Scenario study
Animo3
Initiated
presentation
SOBEK
Applications:
• prediction of changes in groundwater tables
• prediction of fluctuations in surface water discharges
• prediction of effects of (water) policy on inundation frequencies
present
situation
• prediction of crop damage related to climate or policy
• testing flood risks related to land use and water policy
differences in inundation
frequencies due to
climate change
climate
variant
1) Alterra, Green World Research, Centre for Water and Climate, P.O. Box 47, 6700 AA Wageningen, The Netherlands.
2) Multi-SWAP simulates integrated water and solute transport at catchment scale
3) Animo models nutrient leaching to ground - and surface water