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DSD-INT 2019 Introduction to wflow concepts, Features & developments, New release 2019.1 - Hazenberg


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Presentation by Pieter Hazenberg, Deltares, at the wflow - User Day (Developments in distributed hydrological modelling), during Delft Software Days - Edition 2019. Friday, 08 November 2019, Delft.

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DSD-INT 2019 Introduction to wflow concepts, Features & developments, New release 2019.1 - Hazenberg

  1. 1. D e l f t S o f t w a r e D a y s - w f l o w u s e r d a y 2 0 1 9 Introduction to wflow concepts, Features & developments, New release 2019.1 Pieter Hazenberg
  2. 2. wflow team Product manager Bobby Russel Sr. Advisor – Inland water systems Software development lead Dr. Willem van Verseveld Sr. Advisor/Researcher – Inland water systems wflow development team (including myself) DelftSoftwareDays-wflowuserday2019 2
  3. 3. Introduction About myself Name: Pieter Hazenberg, PhD Current position: Sr. Researcher/Advisor at Deltares (since June 2019) Specialties/Interests: Distributed hydrological modeling, wflow development, realtime to seasonal forecasting, precipitation, hydrometeorological extremes, land-atmosphere interactions and climate change Background: 2016-2019: Assistant Professor at the Department of Hydrology and Atmosperic Sciences, University of Arizona 2012-2016: Research Associate at the Institute for Atmospheric Physics, University of Arizona 2007-2012: PhD in Hydrometeorology in the Quantitative Water Management Group at Wageningen University 2004-2007: MSc in Hydrology and Water Quality at Wageningen University 2001-2004: BSc in Soil, water and Atmosphere at Wageningen University DelftSoftwareDays-wflowuserday2019 3
  4. 4. Introduction (Name and affiliation) DelftSoftwareDays-wflowuserday2019 4
  5. 5. Overview 1. What is wflow 2. What is distributed hydrological modelling 3. Latest features of the wflow hydrological modelling framework 4. Where is wflow being applied 5. How is wflow integrating with other models 6. How does the future look for wflow 5 DelftSoftwareDays-wflowuserday2019
  6. 6. Question: Lets make this session a little bit more interactive. What are the first things that come to your mind when you think about wflow? DelftSoftwareDays-wflowuserday2019 6
  7. 7. What is wflow - Framework approach to distributed hydrological modelling Integration of different hydrological concepts and cross-collaboration: • wflow_pcrglobwb • wflow_hbv • wflow_sbm • wflow_topoflex • wflow_W3RA • wflow_gr4 • wflow_stream • wflow_sphy 7 DelftSoftwareDays-wflowuserday2019 Application guide for the different modelling concepts.
  8. 8. Grid-based distributed hydrological modelling? 8 DelftSoftwareDays-wflowuserday2019
  9. 9. High resolution hydrography data Upscaled model resolution hydrography and subgrid river data Global-wflow parameter estimation? DelftSoftwareDays-wflowuserday2019 9
  10. 10. Large-scale testing of global-wflow DelftSoftwareDays-wflowuserday2019 10
  11. 11. Features • A sediment routing module (wflow_sediment) • Water quality (wflow_emwaq and wflow_DELWAQ) - create and link a Delft3D-WAQ or D-Emissions model to wflow_sbm • A crop growth module (wflow_lintul) for irrigated rice dynamics • Reservoirs and natural lakes routing • Better routing – sub-grid river data from hi-res Merit Hydro data • OpenDA (for data assimilation) • Basic model interface (BMI) for coupling with other models 11 DelftSoftwareDays-wflowuserday2019
  12. 12. 2018 – Completed projects 12 DelftSoftwareDays-wflowuserday2019
  13. 13. 2019 – Rapid uptake 13 DelftSoftwareDays-wflowuserday2019
  14. 14. Question: For what would you like to make use of wflow? Which applications are you interested in? DelftSoftwareDays-wflowuserday2019 14
  15. 15. Stand-alone to greater integration 15 DelftSoftwareDays-wflowuserday2019 • BMI allows wflow to be coupled with other models • Increasingly being used to quickly generate headflows for other applications • Leveraging EartH2Observe datasets for model building • Hydro MERIT datasets
  16. 16. Stand-alone to integration 16 DelftSoftwareDays-wflowuserday2019 Msimbazi flood modelling project National-level Drought and Flood Risk Profiles in Sub-Saharan Africa R&D to couple with wflow for saturated zone Sava River flood forecasting system Suir River flood forecasting system Community Water Watch Water Resources Inventory of the Republic of Azerbaijan Knowledge and Innovation Support for ADB’s Water Financing Program – Myanmar Dry Zone Study Geodata for upgrading small holders' farming systems in Indonesia (G4INDO) SO - Integration of wflow and DELWAQ (sediment, waste and water quality) Water Quality Modelling Framework for New Zealand National Inventory, Metrics, and Hotspots Assessment of Marine Plastics Debris in Key Indonesian Cities Seine River – tyre road wear particles emission model
  17. 17. Question: What limitation do you foresee for wflow and what would you like to see added/improved? DelftSoftwareDays-wflowuserday2019 17
  18. 18. The future – Priorities for wflow 18 DelftSoftwareDays-wflowuserday2019 1. Improve hydrological concept 2. Need for speed​ 3. Improve integration with other Deltares software products
  19. 19. 1 – Improve hydrological concept 19 DelftSoftwareDays-wflowuserday2019 For wflow_sbm: • Multiscale Parameter Regionalisation calibration module • Kinematic wave in flat areas • Soil depth • Spatially distributed demand modules
  20. 20. 2 – Need for speed 20 DelftSoftwareDays-wflowuserday2019 • Driven by demand – bigger domains, finer resolution, faster run times • wflow provides head flows for other applications (water resources management, flood risk, flood warning, real-time control) which need faster runtimes • Possible solution: More efficient code • Possible solution: Parallelization
  21. 21. 3 – Improved integration 21 DelftSoftwareDays-wflowuserday2019 • Want an integrated modelling approach (with other tools) • Driven by demand – wflow provides head flows for other applications (water resources management, flood risk, flood warning, real-time control) which need time-step by time-step coupling • Better ability to do scenario analysis
  22. 22. Deltares-4thinternationalwflowuserday 22 Presenting… WFLOW RELEASE 2019.01 !
  23. 23. Releasing wflow’s new version: wflow 2019.1 DelftSoftwareDays-wflowuserday2019 23 Updated features • wflow_sbm, redesign of lateral subsurface flow because of a bug that resulted in an overestimation of lateral subsurface flux: ➢ The kinematic wave approach is used to route subsurface flow laterally ➢ Kinematic wave solution for surface (overland and river) and subsurface flow added to wflow_funcs, and used by wflow_sbm. Numba (open-source JIT compiler) is used to accelerate these functions. This replaces the PCRaster kinematic wave solution ➢ A seperate kinematic wave reservoir for river (self.RiverRunoff) and overland flow (self.LandRunoff) ➢ Lateral subsurface flow and overland flow feed into drainage network (channel) based on ratio slopes (slope upstream cell / (slope upstream cell + slope cell)) ➢ Option to provide land slope and river slope (staticmaps) ➢ Removed sub-grid runoff generation ➢ Removed re-infiltration of surface water • wflow_hbv uses kinematic wave solution for surface flow available in wflow_funcs (replacement of PCRaster kinematic wave solution) • Option to enable iteration (smaller time steps) for kinematic wave solution for surface runoff (wflow_hbv and wflow_sbm)
  24. 24. Releasing wflow’s new version: wflow 2019.1 DelftSoftwareDays-wflowuserday2019 24 Updated features We also have added: • The hydrological model wflow_w3 to wflow framework, based on Australian Water Resources Assessment Landscape model (AWRA-L), an improved version compared to wflow_W3RA • The hydrological model wflow_stream to wflow framework (STREAM: Spatial Tools for River Basins and Environment and Analysis of Management Options) • An experimental version of wflow_sediment to simulate soil erosion and delivery to the river system • The wflow_emwaq module: provides a set of functions to create and link a Delft3D-WAQ or D-Emission model to a wflow model • Update of lake modelling for wflow_hbv and wflow_sbm (including also Modified Puls Approach) in wflow_funcs • Update of glacier model (used by wflow_hbv and wflow_sbm) • Parameter Manning N of river can be linked to streamorder for wflow_hbv • setuptools_scm used for version wflow package
  25. 25. Question: What do you hope to get out of today? DelftSoftwareDays-wflowuserday2019 25
  26. 26. Today’s programme DelftSoftwareDays-wflowuserday2019 26
  27. 27. back  close  D e l f t S o f t w a r e D a y s - w f l o w u s e r d a y 2 0 1 9 27 Thank you for your attention