I have many rasters and one vector layer with many polygon features and I am looking for a way to find the polygons which fall above each raster (sort of select by location)
Please suggest an way so that I can automate the process.
End Goal is to find number of polygons intersecting each raster and their names.
This can be done in model builder. You would cycle through your folder of rasters and extract out their extents. These can then be used to run a select by location and either update a counter field or export. Up to you.
You do not say what your rasters are they may have a load of nodata around the edges, how do you want to deal with those?
You can build a tile index (Raster->Miscellaneous->Tile Index in QGIS or raster catalog is the equivalent in ArcGIS). This produces a polygon shapefile of all the raster extents in a single step(Note if you have long. Then just select by location in the usual way.
(Note if you have a lot of rasters and/or long path names, just edit the command to be /some/path/*.tif or whatever format your rasters are in, rather than list all the rasters individually).
