Even Rouault kirjoitti 24.10.2017 klo 13:28:
> 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.
Also in NetCDF the time dimension may be as bands - at least I have
marine research data which opens first as having two subdatasets (mean
and max wave height) and then as bands (the monthly values).
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.
Above the division to subdatasets and bands seems arbitrary and perhaps
not user controllable. I agree it would be useful to have a better data
model in this respect.
Ari
>
> 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
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