Create meteorology data¶

Create MetDataset and MetDataArray data structures for working with meteorology data.

[1]:

from datetime import datetime

import numpy as np
import xarray as xr

from pycontrails import MetDataArray, MetDataset, MetVariable

MetVariable¶

Dataclass to contain metadata for meteorology variables.

[10]:

mv = MetVariable(short_name="mv", standard_name="met_variable", long_name="Custom Met Variable")
mv

[10]:

MetVariable(short_name='mv', standard_name='met_variable', long_name='Custom Met Variable', level_type=None, ecmwf_id=None, grib1_id=None, grib2_id=None, units=None, amip=None, description=None)

[11]:

# attrs shorthand
mv.attrs

[11]:

{'short_name': 'mv',
 'standard_name': 'met_variable',
 'long_name': 'Custom Met Variable'}

Built-in Variables¶

pycontrails contains many standard met variables in the pycontrails.core.met_var module.

The standard_name attribute is used by default as string references through the repository.

[12]:

from pycontrails.core.met_var import (
    AirTemperature,
    SpecificHumidity,
)

[13]:

AirTemperature.attrs

[13]:

{'short_name': 't',
 'standard_name': 'air_temperature',
 'long_name': 'Air Temperature',
 'units': 'K'}

[14]:

SpecificHumidity.attrs

[14]:

{'short_name': 'q',
 'standard_name': 'specific_humidity',
 'long_name': 'Specific Humidity',
 'units': 'kg kg**-1'}