intro story Lake


Lakes and reservoirs are important resources for communities around the globe. They provide food, drinking and irrigation water and can also offer spots for recreation. Under certain conditions lakes can also represent a threat for local communities, such as flooding or limnic eruptions. The ecological state of shallow lakes may be hampered by suspended sediments due to wind driven currents and waves. In deep lakes, stratification can cause undesirable anoxic conditions in the deeper areas. Understanding these systems is crucial to enable a sound management of these water bodies.

Delft3D is the state-of-the-art modelling framework for hydrodynamics, water quality, ecology, waves and morphology.
Here, in this space, we share knowledge & experiences, and discuss issues related to modelling of lakes.






Sub groups
D-Flow Flexible Mesh
Cohesive sediments & muddy systems


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space/time varying Secchi depth in d3d flow simulations - how can I do it?

Marina Amadori, modified 2 Years ago.

space/time varying Secchi depth in d3d flow simulations - how can I do it?

Youngling Posts: 2 Join Date: 8/7/18 Recent Posts

Hi, I read that starting from version of Delft3D is possible to have time and space varying Secchi depth but I could not find any example on this on the manual.

How can I implement it in my simulations? Should I provide a text file with a specific extension and call it in the .mdf via a keyword? And how should I write the file?

Thank you