My starting point is a series of bounding box polygons, representing the extents of all the data sets in my inventory.
I am trying to produce an output grid showing the frequency of coverage over the the extent of the entire inventory, in my case the world.
I had thought that a combination of Intersect and Dissolve functions would get me what I wanted, but haven't had any success with this approach yet.
Can anyone suggest a better process? I am open to any suggestions, whether it be some tools already available in ArcMap, QGIS...etc or through programmatic/scripting using ArcPy,GDAL...etc.