I am trying to orthorectify ASTER imagery (VNIR, 15m resolution) in ArcMap using an ASTER DEM that I have downloaded from the GDEM website. The area is in the Andes, there are very high elevation differences so I guess orthorectification is needed.
I was using the tool "Create Ortho Corrected Raster Dataset (Data Management)" and I tried with the DEM as input and also with a derived DHM. I always get an error message very quickly.
It's the same coordinate system, I have chosen a very short path (C:/temp), I have tried with file formats *.img and *.tiff. I have never orthorectified before. Any ideas?