discretize.TreeMesh.average_node_to_face_z

TreeMesh.average_node_to_face_z

Averaging operator from nodes to z faces (scalar quantities).

This property constructs a 2nd order averaging operator that maps scalar quantities from nodes to edges. This averaging operator is used when a discrete scalar quantity defined on mesh nodes must be projected to faces.

Returns
(n_faces_z, n_nodes) scipy.sparse.csr_matrix

The scalar averaging operator from nodes to faces