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hacky insertion of tendencies by loader #2346

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342ec7f
hacky insertion of tendencies by loader
AnnaKwa Oct 13, 2023
f2caab8
add try/except to bypass test
AnnaKwa Oct 13, 2023
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19 changes: 18 additions & 1 deletion external/loaders/loaders/batches/_batch.py
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Original file line number Diff line number Diff line change
Expand Up @@ -256,9 +256,26 @@ def _get_batch(mapper: Mapping[str, xr.Dataset], keys: Iterable[str],) -> xr.Dat
return ds


def _add_dQ1_dQ2(ds):
ds["dQ1"] = (
ds.air_temperature
- ds.air_temperature_before_interval_update_at_next_time_step.shift(time=1)
) / 900.0
ds["dQ2"] = (
ds.specific_humidity
- ds.specific_humidity_before_interval_update_at_next_time_step.shift(time=1)
) / 900.0
return ds


@curry
def _open_dataset(fs: fsspec.AbstractFileSystem, variable_names, filename):
return xr.open_dataset(fs.open(filename), engine="h5netcdf")[variable_names]
ds = xr.open_dataset(fs.open(filename), engine="h5netcdf")[variable_names]
try:
ds = _add_dQ1_dQ2(ds)
except (AttributeError):
pass
return ds


@batches_functions.register
Expand Down