MODFLOW6 and iMOD user day 2025

Highlights from Delft πŸ’‘
Author

Frans Roelofsen

Published

November 20, 2025

Copied from LinkedIn

🌍 The 11th edition of our User Day was a success! Nearly 100 participants from 11 countries gathered in Delft on 20 November for the Deltares International Hydrology Software Days.

We thank our keynote speaker Chris Langevin for his insight in MODFLOW 6 developments. Frans Roelofsen and Joeri van Engelen shared developments and the roadmap for iMOD Suite.

πŸŽ‰ We are proud to announce that we released iMOD Python 1.0.

Sessions on the main stage covered topics such as: - The National Hydrological Model of Denmark (Raphael Schneider & Simon Stisen) - MODFLOW 6 parallel capabilities (Joost Delsman) and Flexible quadtree sub modelling (Jarno Verkaik) - Land Subsidence (Joe Hughes)
- Groundwater Energy (GWE) Model for MAR systems (Arjan van Wachtendonk) - MODFLOW 6 Solver settings (Huite Bootsma)

In the afternoon, participants enjoyed short pitches on interesting topics related to our current developments and beyond, presented by Hendrik Kok, Robert Leander, Sunny Titus, DavΓ­d Brakenhoff, Jesse Reusen and Mart Clanor. Meanwhile, others joined a parallel session for the iMOD Python hands-on training.

🀝 It was fantastic to see so many professionals engage, collaborate, and help strengthen the global hydrology community. We’re already looking forward to the next edition in 2026!

DSD 2025