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Hydrological modelling using the
wflow framework
Mark Hegnauer, Deltares
09 November 2018 – 3rd wflow user day
Program of the day
21 May, 2018
And now
A short “get to know each other” quiz
 Use your mobile phone or laptop
 Go to https://kahoot.it/
 Enter GAME PI...
About the wflow framework
 The Deltares open source hydrological modelling framework
 Wflow can be used freely
 Key str...
Usage of the wflow framework
Wflow is used by Universities, Research Institutes, Consultants and
Governments around the wo...
What is wflow?
A hydrological modelling framework:
 Based on PCRaster / Python framework
 Fully distributed hydrological...
Characteristics of the wflow model
 Gridded output: results can be obtained for any point in the model
21 november 2018
Characteristics of the wflow model
 Grid output: multiple variables can be stored and displayed
21 november 2018
Snowpack...
Example projects using wflow
 “RWSOS Rivieren” (forecasting Rhine / Meuse
flows into the Netherlands)
 Indonesia (nation...
Wflow product
Wflow development version:
 Python scripts, Python-PCRaster framework, GDAL, …
 Open source, adjust the sc...
Release wflow 2018.1
Latest developments: Release 2018.1
Main features of the new release:
 Migration to Python3 and PCRaster 4.2.0
 New mode...
Latest developments: Release 2018.1
Main features of the new release:
 Migration to Python3 and PCRaster 4.2.0
 Python2 ...
Latest developments: Release 2018.1
Main features of the new release:
 Reservoir areas added to simple reservoir module (...
Current and upcoming developments
Activity Status
 Documentation (incl. tutorials) Ongoing
 Rolling out of a global wflo...
Activity Status
 Documentation (incl. tutorials) Ongoing
 Rolling out of a global wflow model Ongoing
 Possible new col...
More information
Online technical documentation:
 http://wflow.readthedocs.io/en/latest/
GitHub repos:
 https://github.c...
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DSD-INT 2018 Opening wflow User Day 2018 - Hegnauer

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Presentation by Mark Hegnauer (Deltares) at the wflow User Day 2018, during Delft Software Days - Edition 2018. Friday 09 November 2018, Delft.

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DSD-INT 2018 Opening wflow User Day 2018 - Hegnauer

  1. 1. Hydrological modelling using the wflow framework Mark Hegnauer, Deltares 09 November 2018 – 3rd wflow user day
  2. 2. Program of the day 21 May, 2018
  3. 3. And now A short “get to know each other” quiz  Use your mobile phone or laptop  Go to https://kahoot.it/  Enter GAME PIN  Add user name 21 May, 2018
  4. 4. About the wflow framework  The Deltares open source hydrological modelling framework  Wflow can be used freely  Key strengths:  Directly links to available (gridded) datasets  Multiple hydrological concepts included  Open Source – easy to work together / share knowledge  Strongly linked to other packages (e.g. MODFLOW (BMI), Delft-FEWS (wflow-adapter) and OpenDA (BMI))  Source code can be downloaded from: https://github.com/openstreams/wflow/  More information: http://wflow.readthedocs.org/en/latest/ Connectivity via:  BMI  NETCDF-CF  Open standards
  5. 5. Usage of the wflow framework Wflow is used by Universities, Research Institutes, Consultants and Governments around the world 21 november 2018
  6. 6. What is wflow? A hydrological modelling framework:  Based on PCRaster / Python framework  Fully distributed hydrological model  Different hydrological concepts available  HBV  SBM  FlexTopo (beta)  W3RA  PCRGLOB-WB  Different modules available:  Routing module  (Simple) reservoirs module  Crop growth module (LINTUL)
  7. 7. Characteristics of the wflow model  Gridded output: results can be obtained for any point in the model 21 november 2018
  8. 8. Characteristics of the wflow model  Grid output: multiple variables can be stored and displayed 21 november 2018 Snowpack simulation in Albania Runoff simulation in France
  9. 9. Example projects using wflow  “RWSOS Rivieren” (forecasting Rhine / Meuse flows into the Netherlands)  Indonesia (nation wide water availability)  Sava Flood Forecasting System (forecasting)  Ganga River Basin Model for strategic basin planning (IWRM)
  10. 10. Wflow product Wflow development version:  Python scripts, Python-PCRaster framework, GDAL, …  Open source, adjust the scripts, get latest updates  Contribute! Wflow binaries:  Pre-compiled, tested (automatic) and ready-to-use  Periodical release (2018.1 is recently released!)  Obtaining latest executables, contact: wflow@deltares.nl  Coming soon: https://oss.deltares.nl/web/wflow  Note: wflow does not come with a GUI 21 november 2018
  11. 11. Release wflow 2018.1
  12. 12. Latest developments: Release 2018.1 Main features of the new release:  Migration to Python3 and PCRaster 4.2.0  New model concept added: pcrglob-wb  Improvements of the wflow_sbm model:  Reduced root water uptake (Feddes)  Allow soil evaporation from saturated store  Multiple soil layers (optional)  Reservoir areas added to simple reservoir module (P and PET)  Lake modelling based on HBV-96  Minor improvements/bug fixes (240 commits in 2018)  Automatic test & build process setup 21 May, 2018
  13. 13. Latest developments: Release 2018.1 Main features of the new release:  Migration to Python3 and PCRaster 4.2.0  Python2 no longer supported from 2020 onwards  Some packages (e.g. pandas) already unsupported  PCRaster 4.2.0 only supports Python3 21 May, 2018 https://pythonclock.org/
  14. 14. Latest developments: Release 2018.1 Main features of the new release:  Reservoir areas added to simple reservoir module (P and PET)  Rain and evaporation calculated in reservoir module  No double counting 21 May, 2018 Rainfall taken care of in reservoir module
  15. 15. Current and upcoming developments Activity Status  Documentation (incl. tutorials) Ongoing  Rolling out of a global wflow model Ongoing  Possible new collaborations (ao VU / NCAR) Ongoing / Open  Upgrade wflow model builder (“Hydro Earth”) Ongoing  Connection to emission / WQ model Ongoing  Improvements to the snow / glacier module Research  Improved lake / reservoir module Research  Online coupling to Delft3D FM (detailed) Research  Improved routing scheme (faster) Idea  (Online) coupling with water allocation model Idea  Expand crop growth module with more crops Idea  Develop a QGIS plugin for wflow Idea 21 May, 2018
  16. 16. Activity Status  Documentation (incl. tutorials) Ongoing  Rolling out of a global wflow model Ongoing  Possible new collaborations (ao VU / NCAR) Ongoing / Open  Upgrade wflow model builder (“Hydro Earth”) Ongoing  Connection to emission / WQ model Ongoing  Improvements to the snow / glacier module Research  Improved lake / reservoir module Research  Online coupling to Delft3D FM (detailed) Research  Improved routing scheme (faster) Idea  (Online) coupling with water allocation model Idea  Expand crop growth module with more crops Idea  Develop a QGIS plugin for wflow Idea Current and upcoming developments 21 May, 2018 Any other ideas / suggestions?
  17. 17. More information Online technical documentation:  http://wflow.readthedocs.io/en/latest/ GitHub repos:  https://github.com/openstreams/wflow More info? Sent an email:  wflow@deltares.nl Soon also on Open Source Software portal:  https://oss.deltares.nl/web/wflow 21 May, 2018

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