dry_lapse#

metpy.calc.dry_lapse(pressure, temperature, reference_pressure=None, vertical_dim=0)#

Calculate the temperature at a level assuming only dry processes.

This function lifts a parcel starting at temperature, conserving potential temperature. The starting pressure can be given by reference_pressure.

Parameters
  • pressure (pint.Quantity) – Atmospheric pressure level(s) of interest

  • temperature (pint.Quantity) – Starting temperature

  • reference_pressure (pint.Quantity, optional) – Reference pressure; if not given, it defaults to the first element of the pressure array.

Returns

pint.Quantity – The parcel’s resulting temperature at levels given by pressure

See also

moist_lapse

Calculate parcel temperature assuming liquid saturation processes

parcel_profile

Calculate complete parcel profile

potential_temperature

Notes

Only reliably functions on 1D profiles (not higher-dimension vertical cross sections or grids) unless reference_pressure is specified.

Changed in version 1.0: Renamed ref_pressure parameter to reference_pressure