I'm trying to get data from a GFS APCP (Total Precipitation 'tp' accum),
but only can access to time 2.
Time 1 have the accumulated precipitation from RUN hour to the forecast hour.
For example for 06Z , time 1 shows tha acumulated precipitation from 00 to 06.
Time 2 have the accumulated fomr the sinoptic hour until the forecast hour.
For example, 17Z have the precipitation from 12 to 17.
With:
backend_kwargs = {'filter_by_keys': {'stepType':'accum'},'indexpath': ''} ds = xr.open_dataset(file_path , engine="cfgrib" , backend_kwargs=backend_kwargs)
only can be read time 2, not time 1.
As GFS APCP grib comes with 2 GRIB forecast observation time as Mixed Intervals Accumulation, I wonder to read both. Is that possible? Attached picture from Panoply with both time 1 and 2 to be selected in the same grib.Panoply APCP
Also I tried to merge as merge but the seems that the second grib doesn't exists when cfgrib open_dataset. So can't merge.
Thank you
