> The netcdf files I looked at through the GDAL driver had time and/or > depth offered as different gdal layers, and offered different variables > (i.e. different coverages) as subdatasets.
Yes, although in the WCS case, a coverage can have several bands, and thus using the band mechanism to reflect the N>2 dimensions can become confusing. The only clean solution to that would be to have a true multidimensional raster support at the GDAL API level, but that's a rather involved effort. > > Which other GDAL drivers give direct access to time-varying raster > stacks in single files? I guess HDF5, as it is really close to netCDF. GRIB could potentially be used to have time-varying raster, although, from what I saw, generally you put instead different variables for the same forecast time in the same file. But technically you couldx just concatenate any amount of GRIB messages into a single file and this will be seen as a multi-band raster by GDAL. Even -- Spatialys - Geospatial professional services http://www.spatialys.com
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