Netherlands Hydrological Instrument
‘the next step in the Dutch approach’
Daan Dunsbergen (Rijkswaterstaat)
Chairman NHI Strategy Team
Delft Software Days 2017, iMOD International User Day
31 October 2017
Outline of this presentation
We are facing challenges
We need an instrument (a Dutch approach)
We have an ambition
We got NHI
We (also) focus on governance (next step)
The Netherlands Delta with 4 large rivers
Rijn, Maas, Schelde en Eems
Delta under pressure: challenges for the future
Sealevel rise 35-85 cm/100y
More/extreme storms?
More/intense rainfall
Spatial developments
Increased erosion
Subsidence 10 cm/100yr
Salt intrusion
Decreased river
discharge - 10% - 50%
Increased river
discharge + 10%
Watermanagement in the Netherlands: we need instruments
For instance: See our water communication (waterbalance, salinity, …) https://waterberichtgeving.rws.nl/ water-en-weer/ actuele-overzichten-watersystemen/ landelijk-overzicht
Original context NHI: national policy making
average+dry conditions
continuing challenge
Realising (a.o. from a hydrological point of view)
There are no boundaries between
national – regional – local importance
Watermanagement needs an integral approach
policy making – operational performance
Tools should also be based on an integral approach
data (input) - … - estimation of effects (outcome)
Cooperation benefits
creating models ‘fit for purpose’
Need for effective and efficient use of resources (time and money)
Development and maintenance
Present context NHI: national and regional scale
flooding+average+dry conditions
Our ambition NHI
One consistent hydrological toolbox for NL
On every scale level
Dynamic link between ground- and surface water and water distribution
Dynamic link between water quality and ecology
Policy making and operational use
Common database and model principles
Open source programs and tools
Common responsibility for development, management and maintenance
Regional applications
Regional models
Instruments and databases
National models
National applications
Responsibility NHI Relation/importance NHI
Basic Data
Shared Model Data
NHI: 1 toolbox supporting national and regional demands
Drinking Water Companies
Waterboards Provinces
toolbox NHI under construction,
present: 1 national + several regional models
10 drinking water companies in NL
Supply region VITENS N-E NL
Now VITENS is participant in 5 regional modelling partnerships
Case: drinking water companies
For every pumping station detailed ground water model required
Dealing with 5 partnerships
Different models at boundaries
Modeling in the future
One database
One toolbox
No boundaries
NHI Data Base
Model
NHI
Governance: effective regional partnership
Forming regional export groups
We expect less overhead by joining NHI
Drents Plateau overleg
Fries overleg
Flevo overleg
Kop van
Overijssel
overleg
Salland overleg
Twents overleg
Gronings overleg
Veluwe overleg
Achter-hoeks
overleg
NHI Project team NHI Strategy team
NHI Operational team
Stakeholders
Stakeholders Stakeholders
Stakeholders Stakeholders & Expert groups
Begeleidingscommissie(s) Begeleidingscommissie(s)
Guidance committee
Q&C NWM
Governance
Defining and deciding
Implementing
Netherlands Hydrological Instrument (1)
And already proud to conclude
We are able to improve data and tools together (data-exchange, coupling groundwater-surface water quality, real-time modeling, modeling salinity-, evaporation concepts, …)
It results in national and regional models, based on the same assumptions
We demand open source
Thanks to joint investment
Netherlands Hydrological Instrument (2)
Adding an invitation to our Dutch stakeholders, please
Show ownership
Promote support regional / national
Ensure national-regional policy consensus
Contribute to sustainable financing, also for management and maintenance
Join a formal cooperation agreement
Welcome to join the community
Thanks! Please, stay in touch
[email protected] (strategy team)
[email protected] (project team)
[email protected] (operational team)
www.nhi.nu
Tip: NHI-day: 23 november, Observant Amersfoort
http://www.stowa.nl/nieuws___agenda/agenda/NHI-dag_2017__En_nu_aan_de_slag_
Water Safety Water Quality
National Water Model
National application NHI-LHM
Database and software tools
(hydrology)
Ground- and surfacewater
movement
Fresh Water
Water movement
Relation between NHI and NWM
Open Data: water movement for year round forecasts
