Presentation by Menno Genseberger, Deltares, The Netherlands, at the Delft3D - User Days (Day 4: Water quality and ecology), during Delft Software Days - Edition 2018. Thursday, 15 November 2018, Delft.

1. Towards an integrated hydrodynamic,
water quality, and ecological modelling
approach for Lake IJssel and Lake Marken
in the Netherlands
Menno Genseberger and many others
November 15th 2018, water quality and ecology, Delft3D - User Days

2. Lake IJssel and Lake Marken
NorthSea
clay
15-11-2018

3. example 1: operational forecasting of flooding
Lake IJssel and Lake Marken
FEWS system
15-11-2018

4. example 2: salt intrusion Lake IJssel
15-11-2018

5. example 3: ecological state Lake Marken
15-11-2018

6. measures in Lake Marken
Hoornse
Hop
Marker
Wadden
15-11-2018

7. Marker Wadden - ecological reclamation
work in progress: building and learning
15-11-2018

8. earth observation
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9. modelling
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10. processes suspended sediment
buffer layer
fluffy layer
fine sediment
particles from
fluffy layer
resuspension
of fine
sediment
particles
flocculation
water column
sedimentation
by gravity
breaking of
flocculent parts
in finer parts
by waves
& currents
15-11-2018

11. ecological impact: coupled processes
waves
temperature,
salinity, CO2,
chemistry
silt benthos
fish
birds
discharges
atmosphere
nutrients
zooplankton
light
currents
ship
movements
algae
vegetation
sediment
wind
15-11-2018

12. from chain of models towards coupled models
version 1 silt model
fetch length approach
for wind-driven waves
Delft3D-FLOW shallow
water solver for
wind-driven flow
time series of measured wind
Delft3D-WAQ advection diffusion
reaction solver for resuspension,
sediment transport, sedimentation,
and light/transparency
15-11-2018

13. from chain of models towards coupled models
version 2 silt model
time series of measured wind
Delft3D-FLOW shallow water
solver for wind-driven flow
HABITAT spatial analysis tool for ecological
assessment to analyse availability and quality of
habitats for individual or groups of species
Delft3D-WAQ advection diffusion reaction solver for
resuspension, sediment transport, sedimentation,
light/transparency
15-11-2018

14. from chain of models towards coupled models
operational forecasting of flooding
river
discharge downscaled wind
& waterlevels
wave height
& period
wind by
downscaling waterlevel and depth averaged
velocity in 2 submodels of
shallow water solver Simona
wave height and wave period in
4 submodels of third generation
wave simulation software SWAN
wave runup and wave over-
topping per dike section in
schematized dike profiles of
PC overslag
spatially varying windfields
obtained from Hirlam model
(KNMI) and downscaled
models embedded
in Delft-FEWS
15-11-2018

15. from chain of models towards coupled models
integrated modelling approach
balance for water-, chloride- and
temperature (sources/sinks, evaporation,
precipitation, solar radiation, …)
spatially varying windfields
obtained from Hirlam/
HARMONIE model (KNMI)
(no downscaling)
balance substances
(sources/sinks)
models and data
embedded in
Delft-FEWS
HABITAT spatial analysis tool for
ecological assessment to analyse
availability and quality of habitats for
individual or groups of species
Delft3D-WAQ/D-Water Quality advection
diffusion reaction solver for resuspension,
sediment transport, sedimentation,
light/transparency, nutrients, and
algae/primary production
Delft3D-FLOW/D-Flow FM shallow
water solver for wind-driven flow,
salinity, and temperature
15-11-2018

16. waterlevel &
current
data model link
water & sub-
stances balance
light/water
transparency
data model
resuspension
data model link
transport algae,
nutrients, sediment
data model link
sedimentation
data model link
concentration in
water column of algae,
nutrients, sediment
data model link
enriched causal chain for integrated modelling
approach
data model link
primary production
data model link
vegetatie
[…]
data model link
benthos
data model link
measures (a.o.
islands, pits)
waveheight &
-period
data model link
bed shear stress
data model linkwind
data model link
critical
bed shear
stress
wave-current
interactions
data model link
bed level &
roughness
data model link
a.o. via flocculation of algae
with sediment particles
zooplankton
data model link
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17. 50 m
200 m
400 m
towards higher resolution with new shallow water solver
15-11-2018

18. towards higher resolution with new shallow water solver
boundary fitted and
incorporates important
details of new land
reclamation projects:
for housing (IJburg) and
nature (Marker Wadden)
15-11-2018

19. model with new shallow water solver:
Lake Marken
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20. model with new shallow water solver:
Lake Marken and Lake IJssel delta
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21. model with new shallow water solver:
Lake Marken and Lake IJssel delta
15-11-2018

22. thank you for your attention!
more information:
general:
Delft3D 4 Suite:
Delft3D FM Suite:
SWAN:
HABITAT:
Delft-FEWS platform:
e-mail: Menno.Genseberger@deltares.nl
check posters
at Delta Plaza
or take a copy
15-11-2018
www.deltares.nl
oss.deltares.nl/web/delft3d
oss.deltares.nl/web/delft3dfm
swanmodel.sourceforge.net
oss.deltares.nl/web/habitat
oss.deltares.nl/web/delft-fews

23. Additional material
15-11-2018

24. calibration and validation with observational data
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25. calibration and validation with observational data
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26. calibration and validation with observational data
15-11-2018

27. (local) bathymetry
15-11-2018

28. animation of model results from shallow water solver
Delft3D-FLOW – local scale near sluices
15-11-2018

29. animation of model results from shallow water solver
Delft3D-FLOW – global scale
15-11-2018

30. efficient dredging navigation channel
15-11-2018