add_critical_land_blockages(dsMask, dsBlockages)

Add the masks associated with one or more transects to the land mask

add_land_locked_cells_to_mask(dsMask, dsMesh)

Find ocean cells that are land-locked, and alter the cell mask so that they are counted as land cells.

widen_transect_edge_masks(dsMask, dsMesh[, ...])

Alter critical passages at polar latitudes to be at least two cells wide, to avoid sea ice blockage