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iMOD User Manual version 5.2 (html)


1.8Acknowledgements

The development and enhancement of iMOD functionality is project-based. This section lists these project-based developments and specifies its funding and organisations Deltares has collaborated with during the implementation.

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Functionality

Funding

Implementation

iMOD Maintenance & Support & iMOD-Helpdesk
In 2013 a group of five iMOD-consortia started the project "iMOD Beheer en Onderhoud, Helpdesk en Website" initiating and (co-)financing a coordinated further development of iMOD and enhanced maintenance and support. The current iMOD-consortia are AMIGO, AZURE, IBRAHYM, MIPWA and MORIA; info on the members of each iMOD-consortium can be found here.


iMOD-CGO
consortia


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MetaSWAP
iMOD includes the unsaturated zone MetaSWAP-module which covers the plant-atmosphere interactions and soil water. MetaSWAP is based on a quasi steady-state solution of the Richards equation. MetaSWAP is developed by Wageningen Environmental Research (Alterra) and was (among others) financed by The Netherlands Hydrological Instrument. For references to the MetaSWAP-documentation see section A.2.8.


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MODFLOW-MetaSWAP coupling
The coupling of MODFLOW and MetaSWAP was created in a collaboration between Deltares and Wageningen Environmental Research (Alterra) and was (among others) financed by The Netherlands Hydrological Instrument.


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Quick Scan Tool
The MIPWA consortium initiated and funded the QuickScan Tool which is an instrument to efficiently compute effects on groundwater levels and seepage fluxes to- and from drainage systems using a so-called Impulse-Response Database. This database stores pre-computed effects of several measures which can be combined in the QuickScan Tool using the principles of superposition.


MIPWA
consortium


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Perched Water Table package
The MIPWA consortium initiated and funded the development of the Purged Water Table (PWT) Package. With this package purged water table conditions can be simulated occurring on shallow (clayey) aquitards with a significant vertical resistance. The initial concept was developed in collaboration with Wageningen Environmental Research (Alterra).


MIPWA
consortium


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3D Tool
Waternet funded the development of the first version of the 3D Tool allowing an interactive 3D visualization of the subsurface in combination with the (litho-stratigraphy) of boreholes.



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Pumping Tool
Hoogheemraadschap De Stichtse Rijnlanden funded an initial version of the Pumping Tool developed specifically to simulate the effect of pumping. In addition to the Scenario Tool the Pumping Tool can be applied to configure new elements in an existing model configuration (runfile) and simulate and analyse the results easily.



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GeoConnect Tool
The GeoConnect Tool allows the modeller to define and utilize permanent links between 1) the (unassembled) geologic layers (incl. its properties) and 2) the aggregated model layers. With the GeoConnect Tool you can re-calculate the hydraulic conductivities of a model layer after adapting the individual weights of each contributing geological layer. The development of was funded by the IBRAHYM concortium (Waterschap Limburg, Provincie Limburg, Waterleiding Maatschappij Limburg).


IBRAHYM
consortium


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ISG
The IBRAHYM consortium initiated the development of the concept of line elements (vector format) as a basis to discretize streams as an alternative for grid based parameterization. This yielded considerable data handling efficiency and much more flexibility when parameterization for different model grids sizes. It also facilitated more user-friendliness regarding inspecting and editing the stream data.


IBRAHYM
consortium


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Runfile Editor & Plug-In Tool
The project manager was extended to support editing of a runfile and project files. Also the iMOD-GUI was extended with Plug-In functionality allowing to invoke external programs in the iMOD-GUI using iMOD files. These functionalities were funded by the iMOD-CGO group.


iMOD-CGO
consortia


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Parallel Krylov Solver Package
Deltares, USGS and Wageningen Environmental Research (Alterra) together with Utrecht University and Technical University Delft have developed the new parallel solver package for iMOD called PKS (Parallel Krylov Solver). It is based on overlapping domain decomposition combining both the techniques of MPI and OpenMP.


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3D-assignment of fault-lines
Extension and improvement of the 3D-parameterization of faults in the Horizontal Flow Barrier package. This extension was funded by the IBRAHYM-consortium led by the Province of Limburg.


IBRAHYM
consortium


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Extension of the water balance tool
The extension of the water balance tool (released in iMOD 4.2) was created in a collaboration between Deltares and Tauw and financed by the Dutch iMOD-CGO group; it allows visualization (interactive stack-bars time series plots and schematic vertical cross-sectional overviews) of water balances for sub-regions and contains several time-aggregation possibilities (e.g. averages per year, month and season).


iMOD-CGO
consortia


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Fence diagrams & Deviated wells
The 3D Tool was extended with an option to interactively create so-called fence-diagrams by using clipping planes along the major Euclidian axes. The 3D Tool was also extended with the option to visualize deviated wells. These developments were funded by the Alberta Energy Regulator | Alberta Geological Survey and came available starting from the iMOD 4.2 release.


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Large coordinates
As a spin-off in a modelling project funded by Landesamt für Landwirtschaft, Umwelt und ländliche Räume, Geologischer Dienst Schleswig-Holstein, Germany, iMOD has been extended for the use of large coordinates. This extension is very handy with respect to the planned European transition to the ETRS89 coordinate system including an extra two-digit zonal prefix. iMOD now supports large coordinates with 12 significant numbers for displaying IDF, IPF, ISG and GEN files. Also IDF’s can be stored in a double precision format. Large coordinates came available starting from the iMOD 4.3 release.


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Extended queries and artificial boreholes in 3D tool
The 3D Tool was extended with the option to allow querying using specific items of boreholes to define a subset. It is now also possible to generate artificial boreholes from a 3D model of the subsurface by sampling the set of IDF’s at user-defined x-, y-locations. These developments were funded by the Alberta Energy Regulator | Alberta Geological Survey and came available starting from the iMOD 4.3 release.


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MetaSWAP Analyser tool
The new MetaSWAP Analyser tool (released in iMOD 4.4) was created by Deltares and financed by the Dutch iMOD-CGO group; it allows quick visualization (spatial and temporal) of all the input parameters for the MetaSWAP part of a groundwater model.


iMOD-CGO
consortia


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