I'm using MODIS satellite data that I've converted into GeoTIFFs (using extract subdataset). ArcMap automatically sets the geographic coordinate system to GCS_Unknown_datum_based_upon_the_Clarke_1866_ellipsoid. After some digging around on the MODIS site, I think, but am not entirely sure, that the starting coordinate system is supposed to be GCS WGS 1984. My goal is to get these into Lambert Azimuthal Equal Area projection and ultimately clip them to show the arctic region. I've tried a few different methods, but when the full image is projected, I always get the inconsistent extent error. For the record, I'm using ArcMap 10.3.1.
What I've tried:
- Project raster as is
- Define projection (set to GCS WGS 1984) and then project raster (Define projection gives me a warning that it already has a projection since ArcMap has technically given the images a coordinate system)
- Project raster into GCS WGS 1984 and then project raster into LAEA
- Going into ArcCatalog to manually change the spatial reference (no way to edit it)
For projecting into LAEA, I've done it both specifying an output cell size and using the default output cell size.
The images always look correct once they're clipped (all of the land area looks to be there and in the general shape it should be) and I don't get the error when I add the clipped images to the data frame, but I'm assuming there's some small distortion or issue with these final images.
I'm processing upwards of 800 images so I'm trying to find a solution that can be done either through batch processing or model builder.