GMS:MODFLOW Layers to 2D Scatter Points

This dialog allows the user to create a scatter point set and data sets of the current MODFLOW simulation.

The user can limit the number of scatter points created by turning on the Only create scatter points within selected coverage option and selecting the appropriate coverage. This is often used when converting between a regional model and a local scale model.

Layer Subdivision

The layers of the current MODFLOW simulation can be subdivided by specifying the Number of local model layers for each layer in the current 3D grid.

The user can select which MODFLOW data sets to create by turning off/on the toggles below the Create data sets of text. Data sets for layer elevations, flow package data (HK, HANI, VK, SY, SS...), Recharge, and Heads can be created. The user must select a 3D grid data set in order to create a data set for the Heads (most often this will be the MODFLOW solution from the regional model).

The Recharge and Head data sets can be transient if the regional model was transient. The user can also select a Start and End time to limit the number of time steps for these data sets.

Bias Layer 1

An option to bias the thickness of the new layer 1 is also available. This can be useful if equally subdividing layer 1 of the regional model would result in cells where the elevation would be above the computed heads. Thus, the user can choose to bias the thickness of the new layer 1 to ensure that the top layer in the new model will not be dry.