I have a global coverage of low resolution (1arc-min) gravity data and also local coverage from various regions with higher resolution. I need to incorporate those local rasters into my global map with preserving high resolution locally within this lower resolution raster. Also I need to buffer the area around the edges of the high res grid so it passes into the surrounding low resolution without a clearly visible outline.
I tried to use Mosaic to New Raster with using the Minimum option but its been working for 24h with no result yet and I am not really sure if that is the right tool to use.
I would really appreciate any help, as I am just a student and might be missing an obvious answer.