I'm trying to get the overall average elevation for different areas delineated within a polygon. Originally, I converted the Digital Elevation Raster (DEM) to a polygon and tried to merge the attribute tables. However, the attribute table for the DEM doesn't actually contain the elevation data.
So,then I converted the DEM into points and extracted the elevation values for each of these points using the 'Extract multivalues to points'....which saved the elevation to the point file. Now having done that, I don't know how I can merge the point file with my polgon file to get the mean elevation for each of the individual polygons. If I mask the point file using the polygon, I'll just get loads of points per polygon and I want a single value. The picture shows the individual areas I want the elevation for. Can anyone advise?