A part that forms the outer edge of something.

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4
votes
2answers
939 views

How to trim Landsat 5 scene edges

I have a bunch of Landsat 5 scenes that I want to mosaic together. However Landsat 5 scenes have a zigzag pattern on the left and right edges as well as some bad data values along these edges. Is ...
14
votes
2answers
630 views

Where can I find historic country border data?

I am looking for border polygons from World War I (from 1914-1918). Is there a resource out there that maintains this kind of information? Any help would be greatly appreciated!!