I'm doing quite heavy processing of Earth Observation data, and it appears that a lot of my workflow can be speeded up by using HDF5 for local storage. I mostly work with large stacks of raster files, and HDF5 as well as numpexpr allow me to very efficiently process large amounts of data. I would like to have as my external format HDF5, but my data can change geographic projection and geolocation. Ideally, I'd like GDAL to be able to use that information (not too worried about other tools), but I can't seem to find how to define that for these files.
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