moist_lapse#
- metpy.calc.moist_lapse(pressure, temperature, reference_pressure=None)#
Calculate the temperature at a level assuming liquid saturation processes.
This function lifts a parcel starting at temperature. The starting pressure can be given by reference_pressure. Essentially, this function is calculating moist pseudo-adiabats.
- Parameters
pressure (
pint.Quantity
) – Atmospheric pressure level(s) of interesttemperature (
pint.Quantity
) – Starting temperaturereference_pressure (
pint.Quantity
, optional) – Reference pressure; if not given, it defaults to the first element of the pressure array.
- Returns
pint.Quantity
– The resulting parcel temperature at levels given by pressure
See also
dry_lapse
Calculate parcel temperature assuming dry adiabatic processes
parcel_profile
Calculate complete parcel profile
Notes
This function is implemented by integrating the following differential equation:
\[\frac{dT}{dP} = \frac{1}{P} \frac{R_d T + L_v r_s} {C_{pd} + \frac{L_v^2 r_s \epsilon}{R_d T^2}}\]This equation comes from [Bakhshaii2013].
Only reliably functions on 1D profiles (not higher-dimension vertical cross sections or grids).
Changed in version 1.0: Renamed
ref_pressure
parameter toreference_pressure