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 Calculate the Total Area of Wet Grids?

Haijun Li, modified 6 Years ago.

How to Calculate the Total Area of Wet Grids?

Dear all,

I'm using the Delft-3d Flow to do a hydrodynamic simulation in a lake.

I am trying to calculate the total area of all grids and wet grids of a certain time interval. Should I set some parameters before starting the simulation? Or calculate areas using

the output files after the simulation? And How?

I'm a green hand with Delft3D. Could you please give some advices?

Thank you !

Li Haijun
Anonymous Anonymous, modified 6 Years ago.

RE: How to Calculate the Total Area of Wet Grids? (Answer)

Jedi Master Posts: 333 Join Date: 7/30/20 Recent Posts
Hi Li,

You can use QUICKIN to compute the area of your grid below a certain level. Have a look at section 5.3.15 of the QUICKIN manual.

You can also have a look at OpenEarth, it might contain some post processing scripts to do what you want.

Good luck.