While this PR only updates the AK Protected Area shapefile / auxiliary files, there is quite a bit happening behind the scenes.
All interior polygon holes have been filled.
The polygons were then dissolved by name where the name roots were identical (e.g., Denali National Park now encompasses all polygons of that form such as Denali National Park Wilderness).
These dissolved polygons were then filtered to remove interior geometries by exploding the geometry, removing interior polygons, and re-dissolving.
A Unary Union operation was then applied to each geometry.
Each geometry was determined to be valid (no bow-ties, nested polygons, etc.)
Polygons less than ten kilometers square in area were removed to address #61 but not close it (they'll need to be tracked as points via their centroids).
I'm optimistic that the more cohesive polygons will perform better in our spatial queries (zonal stats) and be better aesthetically in mini-maps and the like. It is important to note that these polygons are now even greater abstractions of the actual land management status.
While this PR only updates the AK Protected Area shapefile / auxiliary files, there is quite a bit happening behind the scenes.
I'm optimistic that the more cohesive polygons will perform better in our spatial queries (zonal stats) and be better aesthetically in mini-maps and the like. It is important to note that these polygons are now even greater abstractions of the actual land management status.
Closes #38