earthkit.meteo.thermo.fieldlist.lcl

earthkit.meteo.thermo.fieldlist.lcl(t, td, p=None, method='davies')

Compute the temperature and pressure of the Lifting Condensation Level (LCL) from dewpoint.

Parameters:

  • t (FieldList|Field) – Temperature at the start level (K).

  • td (FieldList|Field) – Dewpoint at the start level (K).

  • p (FieldList|Field|Iterable[float]|float|None) – Pressure at the start level (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) – The computation method: “davies” or “bolton”.

Returns:

  • FieldList|Field – Temperature of the LCL (K). The result has the same type as the input t and td (FieldList or Field).

  • FieldList|Field – Pressure of the LCL (Pa). The result has the same type as the input t and td (FieldList or Field).

Return type:

tuple[earthkit.data.FieldList | earthkit.data.Field, earthkit.data.FieldList | earthkit.data.Field]

The LCL temperature is determined by lcl_temperature() with the given method and the pressure is computed with \(t_{LCL}\) using pressure_on_dry_adiabat().