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Please note: The algorithm descriptions in English have been automatically translated. Errors may have been introduced in this process. For the original descriptions, go to the Dutch version of the Algorithm Register.

Integrated Water Model

Geonovum Foundation

The water model can simulate all processes in the hydrological cycle, allowing the modeller to use the water model in a wide range of applications

Last change on 13th of May 2025, at 8:24 (CET) | Publication Standard 1.0
Publication category
Impactful algorithms
Impact assessment
Field not filled in.
Status
In development

General information

Theme

  • Living
  • Nature and Environment
  • Space and Infrastructure

Begin date

2025-05

Contact information

info@geonovum.nl

Link to publication website

https://www.digitaleoverheid.nl/innovatieproject/standaard-voor-transparantie-besluitvorming/

Responsible use

Goal and impact

The integrated water model was created to simulate water flow from sewers and surface water. It is used to predict flooding in existing (built-up) environments, as well as in the construction and design of new sewers when building new neighbourhoods.

Considerations

This is a physics-based mathematical model that is constantly adjusted based on new results. This ensures that deployment of the algorithm should lead to predictions with high accuracy. The model is less suitable for calculating drinking water pipes.

Human intervention

It is verified with people in the neighbourhood whether the predictions of the water model match reality.

Risk management

The quality of the model's prediction is highly dependent on how well physical reality is modelled as an input to the calculation.

Legal basis

This Algorithm is now in a "proof of concept" application, but when taken into production at a municipality or province could be used, for example, for:


* Environment Act: licensing, planning

* AWB (general administrative law act): Monitoring dangerous situations where competent authority takes care of General Principles of Good Governance

- Carefulness

- Transparency

- Proportionate consideration

Links to legal bases

  • Omgevingswet: http://wetten.overheid.nl/jci1.3:c:BWBR0037885
  • Algemen Wet Bestuursrecht: https://wetten.overheid.nl/BWBR0005537

Operations

Data

The model has two types of data as input. First, a model of the physical environment through which water flows, i.e. sewer systems but also surface elevation, e.g. the land use map, or the general elevation file. Second, Dynamic data on water, think precipitation data from KNMI.

Links to data sources

  • KNMI neerslag gegevens: https://dataplatform.knmi.nl/group/precipitation
  • Riolerings gegevens Rioned: https://apps.gwsw.nl/
  • Algemeen Hoogtebestand Nederland: https://www.pdok.nl/introductie/-/article/actueel-hoogtebestand-nederland-ahn
  • Landgebruikkaart STOWA: https://stowa.lizard.net/viewer/map

External provider

Nelen & Schuurmans

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