lifted_index¶
- metpy.calc.lifted_index(pressure, temperature, parcel_profile)¶
Calculate Lifted Index from the pressure temperature and parcel profile.
Lifted index formula derived from [Galway1956] and referenced by [DoswellSchultz2006]: LI = T500 - Tp500
where:
T500 is the measured temperature at 500 hPa Tp500 is the temperature of the lifted parcel at 500 hPa
Calculation of the lifted index is defined as the temperature difference between the observed 500 hPa temperature and the temperature of a parcel lifted from the surface to 500 hPa.
- Parameters
pressure (
pint.Quantity
) – Atmospheric pressure level(s) of interest, in order from highest to lowest pressuretemperature (
pint.Quantity
) – Atmospheric temperature corresponding to pressureparcel_profile (
pint.Quantity
) – Temperature profile of the parcel
- Returns
pint.Quantity
– Lifted Index