Support for older structured-grid versions of MODFLOW
Does Leapfrog Geo, version 2024.1.3 and up, support import of older versions of MODFLOW grids under the Hydrogeology module, such as MODFLOW-2000 and MODFLOW-2005?
I used to do this easily in the past, and Leapfrog was using the "dis" package to understand the 3D structure of the model grid. Now, when I try to import a MODFLOW-2000 model, Leapfrog is demanding either a "disu" or a "disv" file, which are characteristic of unstructured variants such and MODFLOW-USG and MODFLOW6.
Answers
-
Hi AssafWunsch,
Leapfrog Geo imports the following types of MODFLOW models:
- MODFLOW Name files (*.nam, *.mfi, *.mfn, *.modflow.in)
- MODFLOW Grid Specification files (*.gsf)
To import a MODFLOW model, right-click on the Hydrogeology folder and select MODFLOW > Import Model. Leapfrog Geo will ask you to specify the file location, and then will display the data in the file in the Import MODFLOW Model window:
If the world origin is available, the Grid Position will be displayed but cannot be edited.
Click OK to import the grid. The new MODFLOW model will appear in the project tree in the Hydrogeology folder:
If the world origin was not available when the model was imported, you can change the Grid Position. To do this, double-click on its grid object ().
You can:
- Associate lithologies with the grid and then edit hydrological properties. Right-click on the model and select Evaluations. See MODFLOW Evaluations and MODFLOW Hydrological Properties.
- Set a dry cell head value and import head values and MT3D concentrations. See Setting a Dry Head Value and Importing Head Values and MT3D Concentrations.
- Once you have imported head values you can generate a head value mesh. See Generating a Head Value Mesh.
1
