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DSD-INT 2023 - Delft3D User Days - Welcome - Day 3 - Afternoon

Deltares
Deltares

Presentation by Tim Leijnse (Deltares, Netherlands) at the Delft3D User Days, during the Delft Software Days - Edition 2023 (DSD-INT 2023). Wednesday, 15 November 2023, Delft.

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Wednesday, 15 November 2023
Delft3D User Days 2023
Day 3 - Fast compound flooding modelling
using SFINCS
Austria, Cameroon, Canada, China, Czech
Republic, Denmark, Egypt, Finland, France,
Germany, India, Indonesia, Iraq, Italy, Japan,
Netherlands, Pakistan, Panama, South Africa,
South Korea, Spain, Switzerland, Taiwan,
Uganda, United Kingdom, United States
Delft3D User Days 2023
Delft3D
User
Days
2023
-
Day
3
-
Afternoon
2
https://softwaredays.deltares.nl/program
User Day #3: Modelling compound flooding on large scales?
6
• Needed to include all relevant processes for
compound flooding
• Model large scales
• Model probabilistically → many realisations
• Faster computations needed:
− Bathtub models too simple
− Advanced models like Delft3D high detail, but too
slow for quickscan analysis with thousands of
simulations for large scales
− Alternative: reduced-complexity solvers
→ Development of the SFINCS model
Why SFINCS needed?
7
Typhoon Haiyan (2013) Storm surge, the Philippines
8
Hernani
Typhoon Haiyan 2013
Hernani, Eastern Samar,
Philippines
Less than 1 meter of surge
Typhoon Haiyan (2013) – Hernani, the Philippines
9
wave paddles
cross section
57,000 cells
1 hour simulation
Simulation takes 3
hours for XBeach
While it’s only ~10
seconds for SFINCS
on i7 PC
Hm0 = 16 m (SWAN)
Tp = 15 s
Tide + surge = 0.6 m
(Delft3D)

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DSD-INT 2023 - Delft3D User Days - Welcome - Day 3 - Afternoon

  • 1. Wednesday, 15 November 2023 Delft3D User Days 2023 Day 3 - Fast compound flooding modelling using SFINCS Austria, Cameroon, Canada, China, Czech Republic, Denmark, Egypt, Finland, France, Germany, India, Indonesia, Iraq, Italy, Japan, Netherlands, Pakistan, Panama, South Africa, South Korea, Spain, Switzerland, Taiwan, Uganda, United Kingdom, United States
  • 2. Delft3D User Days 2023 Delft3D User Days 2023 - Day 3 - Afternoon 2 https://softwaredays.deltares.nl/program
  • 3. User Day #3: Modelling compound flooding on large scales? 6
  • 4. • Needed to include all relevant processes for compound flooding • Model large scales • Model probabilistically → many realisations • Faster computations needed: − Bathtub models too simple − Advanced models like Delft3D high detail, but too slow for quickscan analysis with thousands of simulations for large scales − Alternative: reduced-complexity solvers → Development of the SFINCS model Why SFINCS needed? 7
  • 5. Typhoon Haiyan (2013) Storm surge, the Philippines 8 Hernani Typhoon Haiyan 2013 Hernani, Eastern Samar, Philippines Less than 1 meter of surge
  • 6. Typhoon Haiyan (2013) – Hernani, the Philippines 9 wave paddles cross section 57,000 cells 1 hour simulation Simulation takes 3 hours for XBeach While it’s only ~10 seconds for SFINCS on i7 PC Hm0 = 16 m (SWAN) Tp = 15 s Tide + surge = 0.6 m (Delft3D)
  • 7. Working open source & open access • Our philosophy is ‘dare to share’ • Making model code+executable available open source and for free • Strong link with academia • Strong link with knowledge on waves from XBeach team • Co-creation, working together • But also, making software more accessible for developing countries 10 Countries where SFINCS has been applied (2022)
  • 8. • Goal: − Provide much faster runtimes to be an additional quickscan tool as part of Deltares numerical modelling solutions − Still preserve accurate results → Examples during todays user talks − Open source community → Today’s new Q4 2023 open source release SFINCS: Super-Fast INundation of CoastS 11
  • 9. Programme Day 3 Afternoon Delft3D User Days 2023 - Day 3 - Afternoon 12 Souhail Aboulfadile
  • 10. Programme Day 3 Afternoon Delft3D User Days 2023 - Day 3 - Afternoon 13
  • 11. “Godfather” Maarten and co-developers Ap and Roel here in spirit today, present again next year 14
  • 12. Programme Day 3 Afternoon Delft3D User Days 2023 - Day 3 - Afternoon 15
  • 13. Presentation Stijn Dijsselbloem CDR International B.V., Netherlands 16 Delft3D User Days 2023 - Day 3 - Afternoon
  • 14. Programme Day 3 Afternoon Delft3D User Days 2023 - Day 3 - Afternoon 17
  • 15. Presentation Souhail Aboulfadile AXA Climate, France 18 Delft3D User Days 2023 - Day 3 - Afternoon
  • 16. Programme Day 3 Afternoon Delft3D User Days 2023 - Day 3 - Afternoon 19
  • 17. Online presentation Camila Gaido Lasserre University of California, Santa Cruz (UCSC), USA 20 Delft3D User Days 2023 - Day 3 - Afternoon
  • 19. Programme Day 3 Afternoon Delft3D User Days 2023 - Day 3 - Afternoon 22
  • 21. Programme Day 3 Afternoon Delft3D User Days 2023 - Day 3 - Afternoon 24
  • 23. Programme Day 3 Afternoon Delft3D User Days 2023 - Day 3 - Afternoon 26
  • 24. Presentation Kai Parker U.S. Geological Survey (USGS), USA 27 Delft3D User Days 2023 - Day 3 - Afternoon
  • 25. Programme Day 3 Afternoon Delft3D User Days 2023 - Day 3 - Afternoon 28
  • 26. Announcement new SFINCS release Announcement future developments Tim Leijnse Deltares, Netherlands 29 Delft3D User Days 2023 - Day 3 - Afternoon
  • 27. Deltares: Dare to Share – now it’s time for the new release 30
  • 28. 31
  • 29. 32
  • 30. SFINCS is available open source! Introducing the SFINCS v2.0.3 Cauberg release 'Climbing hills of challenges in compound flood modelling’
  • 31. SFINCS development team: Maarten van Ormondt Tim Leijnse Kees Nederhoff Roel de Goede Ap van Dongeren Tycho Bovenschen SFINCS Special thanks to colleagues: Fedor baart, Luca Carniato, Dirk Eilander, Frank Platzek, Arthur van Dam, Floris Langeraert, Jelmer Veenstra, Roel Savert, Edward Melger, Willem-Jan Ribberink, Willem Noorduin, Floris Buwalda, Ahmad el Sayed, Deltares Product Management Team & Sito Natural Hazards Special thanks to collaborators and user contributions: Danish Coastal Authority, USGS, CDR, UCSC, IHE Cantabria Brought to you by Deltares
  • 32. 35 See: https://sfincs.readthedocs.io/en/latest/developments.html V2.0.3 Cauberg – Q4 2023 release of SFINCS The code consists of all functionality of the v2.0.2 Blockhaus release, with the following changes/additions: Added functionality: • Netcdf4 compliant output, for reduced file sizes (thanks to David Gutiérrez-Barceló from UCSC) • Green & Ampt infiltration method • Horton infiltration method • Restartfiles including infiltration state, for the case of Curve Number with Recovery, Green&Ampt and Horton • Netcdf Spiderweb input option • Netcdf src+dis input option (Delft-FEWS compatible) • HydroMT-SFINCS with subgrid Other changes: • Improved culvert and drainage pipe formulations (thanks to testing by CDR) • Updated documentation • Added tests in skillbed report • Compliance with new Python setup tools HydroMT-SFINCS release v1.0.2 (09 Nov 2023)
  • 33. So are we done now? SFINCS already solves for processes relevant for coastal compound flooding like: • Storm surge & tide • River inflow • Wind setup • Atmospheric pressure • Rainfall • Infiltration • Subgrid scale bathymetry → Now we are working on including waves in a better way → Also utilizes the new prototype quadtree mesh functionality, for spatially varying grid resolution → Example for Hurricane Michael (2018) at Mexico Beach, Florida → some slides from Maarten van Ordmont’s presentation at the 2023 WaveWorkshop in Notre Dame University from October 36
  • 34. Maarten van Ormondt, Ap van Dongeren, Dano Roelvink 3rd International Workshop on Waves, Storm Surges, and Coastal Hazards, 2023 From: Wave effects in a rapid compound flood model
  • 35. Hurricane Michael (2018) Mexico Beach, Florida 38
  • 36. Hurricane Michael - Mexico Beach, Florida SFINCS QuadTree mesh 39
  • 37. 40 time water level z • Generate water level timeseries from wave height • “Internal boundary condition” • Taken from XBeach (Van Dongeren, 1997) • Weakly-reflective (absorbs reflected waves) Wave paddles
  • 38. 41 Hurricane Michael 270,000 cells 1 day simulation ~ 90 seconds on i7 PC Boundary conditions from large scale models (NOPP)
  • 39. Comparison against USGS High Water Marks 42 With waves Without waves
  • 40. 43 See the whole overview at: https://sfincs.readthedocs.io/en/latest/developments.html
  • 41. • As pre-compiled Windows executable: https://download.deltares.nl/en/sfincs/ • As Docker container: docker pull deltares/sfincs-cpu:sfincs-v2.0.3-Cauberg • Updated manual: sfincs.readthedocs.io/en/latest • Collaborate with us on Github: https://github.com/Deltares/SFINCS • Collaborate with us together in projects • In case of questions, ask one of us or email: sfincs@deltares.nl SFINCS Q4 2023 release ‘v2.0.3 Cauberg’ is available! 44
  • 42. Delft3D User Days 2023 Delft3D User Days 2023 - Day 3 - Afternoon 45 https://softwaredays.deltares.nl/program Thank you all for listening & Time to for a drink!