wflow - User Day (Developments in distributed hydrological modelling)

Wednesday, 11 November 2020

MS Teams 1
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Date 11 November 2020
Time 14:00 - 17:00 CET (Delft time, UTC+1)
User Day
Event is closed for registration
Registry fee € Free
Chair Bobby Russell


wflow is Deltares’ own distributed hydrology modelling platform which maximizes the use of earth observation data and calculates all hydrological fluxes at any given location and time step, using physical parameters and meteorological input data.

The 2020 user day is for hydrological and environmental modellers who want to learn about wflow as well as for existing users. This online event will cover the latest developments and features and the practical applications realized in the last year. 

The wflow framework is an open source framework, based on Python and PCRaster languages. This structure allows users to build their own models from (open) global data and combine different modules. Major processes that can be included are snow and glacier melt, interception, soil moisture, runoff generating processes, sediment transport and river flow. This flexible modelling framework is being used around the world to simulate river flows for flood forecasting, flood risk analysis, water allocation modelling and water quality analysis. Its soil moisture module is providing valuable input for drought analysis and slope stability modelling.

Users can choose from a multitude of conceptual modules within the framework including: HBV, gr4, w3ra, sphy, pcrglobwb, FLEX-Topo and SBM. It also has been successfully coupled with MODFLOW, Delft-FEWS platform, SOBEK 2 Suite, Delft3D FM Suite and RIBASIM.



Please sign in (top right corner) using your MyDeltares account. 

If you already have either a DSD or OSS account and no MyDeltares account yet, then click on the link Forgot Password? to setup your MyDeltares account including a new password. Once you have completed the password reset you can login. 

After the MyDeltares registration or signing in, it will be possible for you to register for individual 2020 events, get a personal overview (My schedule), make changes in your schedule, profile etc. 

You will receive an email confirmation from Microsoft Teams (MS Teams) with further instructions.

If you come across any problems with the registration, please contact our team at


Please check in early to test your audio and video. We will open the session at 13:50 (CET, Delft time), 10 minutes before the start of the session. 





Schedule - Wednesday, 11 November 2020

Time Event
14:00 - 14:10 Welcome and registration
14:10 - 15:30 Block 1
14:10 - 14:20 Ice Breaker session
14:20 - 14:35 Introduction to the wflow framework
14:35 - 15:00 Overview of wflow developments in Julia and live demo
15:00 - 15:30 Group discussion: Modelling needs and interests
15:30 - 15:50 BREAK
15:50 - 16:50 Block 2
15:50 - 16:10 Presentation: Climate-vegetation interactions: testing hydrological models under change
16:10 - 16:30 Presentation: Development of a flood forecasting system for the Velika-Morava catchment in Serbia using wflow
16:30 - 16:50 Presentation: Using wflow to support Material Flow Analysis of plastics in Thailand
16:50 - 17:00 Closing remarks