FEM to FD

FEM_to_FD is a utility designed to convert finite difference (FD) grids into finite element (FE) meshes, a common requirement when bridging different modeling environments.

How it Works

The program employs a context-aware splitting strategy:

Open Water: Squares in the middle of the ocean are simply split into two triangles.
Coastal Preservation: Near shorelines, it intelligently adds points to ensure that geographical features like straits remain open and isthmuses remain closed, preserving the topological integrity of the domain.

Resources

Manual (PDF): Detailed instructions with illustrative pictures.
FEM_to_FD Archive (tar.gz): Contains Matlab M-files, manual, and usage examples.