earthkit.meteo.thermo.fieldlist.ept_from_specific_humidity

earthkit.meteo.thermo.fieldlist.ept_from_specific_humidity(t, q, p=None, method='ifs')

Compute the equivalent potential temperature from specific humidity.

Parameters:

  • t (FieldList|Field) – Temperature (K).

  • q (FieldList|Field) – Specific humidity (kg/kg).

  • p (FieldList|Field|Iterable[float]|float|None) – Pressure (Pa). If None, inferred from the field metadata of t. Otherwise, if t is a FieldList p must be a FieldList or an array-like of the same length as t. If t is a Field, p must be a single Field or a float.

  • method (str, optional) – Specify the computation method. The possible values are: “ifs”, “bolton35”, “bolton39”, “bolton43”. See ept_from_dewpoint() for details.

Returns:

Equivalent potential temperature (K). The result has the same type as the input t and q (FieldList or Field).

Return type:

FieldList|Field

The computations are the same as in ept_from_dewpoint() (the dewpoint is computed from q with dewpoint_from_specific_humidity()).