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


Message Boards

How to change the base level?

Lucas porto, modified 4 Years ago.

How to change the base level?

Youngling Posts: 2 Join Date: 2/7/17 Recent Posts
In my simulation, the initial biomass is smaller than the base level, this base level is used in stead, but it is too big. Empirically it was found that using a base level of 1 percent of the potential maximum generally results in realistic species shifts in the model. But I would like to decrease this base level, is it possible?

Thank you
Denise Denise, modified 2 Months ago.

RE: How to change the base level?

Youngling Posts: 1 Join Date: 12/11/20 Recent Posts
If the base level falls below the continental shelf, rivers may form a plain of braided rivers until headward erosion penetrates enough inland from the shelfbreak.
Base level change may be related to the following factors:
  1. Sea level change <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> login 
  2. Tectonic movement.
  3. River capture.
  4. Extensive sedimentation.