Delft3D – User Days “From global to local”

Tuesday – Thursday, 1 – 3 November 2016


The Delft3D User Days during the Delft Software Days (DSD-INT 2016) provide a unique venue for all Delft3D Flexible Mesh (Delft3D FM) and Delft3D 4 users and developers worldwide to present the latest Delft3D applications, new scientific insights in modelling, and the latest open source developments.

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Keynote Speaker

This years’ keynote speaker of the Delft3D User Days is Prof. Dr. Verlaan, senior researcher Oceanography/Mathematics at Deltares.

Martin Verlaan-125x125Prof. Dr. Verlaan is senior researcher Oceanography/Mathematics at Deltares. For several years he has been responsible for the coordination of research and development in the field of data-assimilation and for the scientific coordination and quality control of projects related to storm surge forecasting, marine operational forecasting, Kalman filtering, automated calibration, design of monitoring networks, operational databases and tidal prediction.

Delft3D FM-GLOSSIS-grid_mediteranean_area-01-564X320He has been actively involved in the development of OpenDA, a generic software package for data-assimilation. OpenDA, previously known as (COSTA and DA-Tools), contains plugins for many models, including the Delft3D Flexible Mesh Suite (Delft3D FM), SWAN, EUROS/LOTOS and many more. OpenDA is being developed in close cooperation with Delft University of Technology, TNO, RIVM and several companies.

Mr. Verlaan has a position as professor at the Faculty of Electrical Engineering, Mathematics and Computer Science of the Delft University of Technology. He is also one of the team leaders for the Dutch storm surge warning service (SVSD), which is the responsible authority in The Netherlands for issuing warnings in the event of a severe storm. In addition, he is actively involved with NOOS, a body that tries to stimulate exchange of knowledge, monitoring data and forecast products between the authorities for marine operational forecasting around the North Sea. Some of the NOOS successes are the real-time exchange of monitoring data and the creation of a common bathymetry for the North Sea.

In his Keynote Lecture during the joint programme of the Delft3D User Days and OpenDA User Day on Tuesday, 1 November 2016, Prof. Dr. Verlaan will show a number of recent developments for the Delft3D Flexible Mesh Suite (Delft3D FM) that were performed to create and improve a unique global tide and storm surge model. Building upon a number of global datasets, the new Delft3D FM capabilities and the ever increasing speed of computers, he and his team have been able to develop a fast and accurate hydrodynamic model on a global scale. At the same time, the impacts of a particular storm are always local and depend highly on local characteristics of the coast, the population density and the strength of coastal defences. A challenge is to link these extremes in spatial scales when considering the potential impact of severe storms.

In addition to advances of numerical modelling, more and more observations are becoming available for example as a result of international exchanges of observations from an increasing number of satellites. Linking these observations to the numerical models is often far from trivial. Yet, the combined use of numerical models and observations can provide new insights, better calibrated models and more accurate forecasts. In his presentation, some existing applications of this using OpenDA will be shown as well as some challenges for the future.


From 2013 – 2016, several Delft3D beta testers worldwide have carried out practical applications and benchmark studies with the Delft3D FM Suite, including hydrodynamics (1D-2D-3D), waves, morphology, water quality, ecology and real time control, using the modules D-Flow Flexible Mesh, D-Waves, D-MorphologyD-Water Quality, and D-Real Time Control, respectively. The results will be demonstrated during the Delft3D User Days 2016.

  • DAY 1: Hydrodynamics
  • DAY 2: Sediment transport and morphology
  • DAY 3: Water quality and ecology


DSD Dinner

All participants of the Delft3D User Days are also invited to join the annual DSD Dinner on Tuesday, 1 November.

Register here for dinner!


Registration for events through My DSD-INT 2016: To sign up for courses, workshops and seminars, you need to register yourself for a My DSD account. Creating an account is free of charge and with no obligation to participate. Via My DSD, it is possible to view specific events and sign up to participate. Your My DSD account then provides an overview of all the events for which you are registered. You will also receive a confirmation e-mail for each registration.