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"""Interface to snow_fraction."""
from improver import cli
[docs]@cli.clizefy
@cli.with_output
def process(*cubes: cli.inputcube, model_id_attr: str = None):
"""
Calculates a snow-fraction field from fields of snow and rain (rate or
accumulation). Where no precipitation is present, the data are filled in from
the nearest precipitating point.
snow_fraction = snow / (snow + rain)
Args:
cubes (iris.cube.CubeList or list):
Contains cubes of rain and snow, both must be either rates or accumulations.
model_id_attr (str):
Name of the attribute used to identify the source model for
blending.
Returns:
iris.cube.Cube:
A single cube containing the snow-fraction data.
"""
from iris.cube import CubeList
from improver.precipitation_type.snow_fraction import SnowFraction
return SnowFraction(model_id_attr=model_id_attr)(CubeList(cubes))