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DSD-INT 2016 India Ganges Basin modelling - Stuurman
1. iMOD in India Ganga Basin
iMOD User Day - Delft Software Days 2016
Roelof Stuurman
(Frans Roelofsen, this week in Delhi: frans.roelofsen@deltares.nl)
2.
3.
4. The main focus is the river system. The groundwater
study is supporting the river assessment
5.
6. High level objectives (TOR WorldBank)
To significantly strengthen the capability of relevant central and state
government agencies to undertake comprehensive evidence-based
strategic basin planning for the Ganga River basin
To develop, document and disseminate (through detailed analytical work
and stakeholder engagement) a set of plausible scenarios that
balance significantly improving the health of the river and
maintaining an acceptable level of economic productivity, and
To build stronger and more accessible information and knowledge
base to guide ongoing dialogue around and management of the
Ganga River basin
To establish ongoing multi-stakeholder engagement processes in
the basin to support strategic basin planning
7 november 2016
8. Set-up of the River Basin Model
WFlow
hydrology
routing
iMOD
ground water
pollutants
database
DWAQ:
water
quality
GANGA Dashboard
SPHY
mountain
hydrology
RIBASIM:
water
resources
ecological
knowledge
rules
GANGA WIS
9. 7 november 2016
Global scale
water
demand
model
(10x10 km grid)
Conceptual
model
Stakeholder
participation,
training
iMOD
groundwater
model
11. Types of groundwater – surface water interaction
7 november 2016
1. Continuous draining river,
3. Continuous Infiltrating river
(hydrological connection)
5. Continuous infiltration, (surface
water and groundwater
disconnected)
2. Periodically changing from
drainage into infiltration,
4. Through flow situation
13. Project Advantages of iMOD:
• iMOD is open source and free
• Fast, flexible and consistent sub-domain modeling techniques.
• Can handle very large, high resolution models. Ganga basin > 3 million
grid cells
• Geo-editing of the subsurface
• Easy to use Graphical User Interface
• Powerful 2d/3d data visualization (also long time series)
• Easy model linking with other Deltares software for hydrology and water
resources ( e.g. WFlow/D-Hydrology and Ribasim)
7 november 2016
15. What will be the results
7 november 2016
Ground water model
Data sharing
Infiltration / drainage Maps
Conceptual model
Map of Groundwater Management Unit
21. Status of the project
• Present (November 2016)
> Still some requests for data (geohydrology)
> Validating and processing data for mode input
> Linking iMOD with Wflow and Ribasim (set up tools to exchange water
fluxes / waterlevels)
• Near Future
> (ground)water models ready: March 2017
> Defining and calculating scenarios / measures: March - September 2017
> Project ready: December 2017
• Far Future
> On-going update and use of models by national/state governments and
consultants
7 november 2016