metpy.calc.mixed_parcel(pressure, temperature, dewpoint, parcel_start_pressure=None, height=None, bottom=None, depth=None, interpolate=True)

Calculate the properties of a parcel mixed from a layer.

Determines the properties of an air parcel that is the result of complete mixing of a given atmospheric layer.

  • pressure (pint.Quantity) – Atmospheric pressure profile

  • temperature (pint.Quantity) – Atmospheric temperature profile

  • dewpoint (pint.Quantity) – Atmospheric dewpoint profile

  • parcel_start_pressure (pint.Quantity, optional) – Pressure at which the mixed parcel should begin (default None)

  • height (pint.Quantity, optional) – Atmospheric heights corresponding to the given pressures (default None)

  • bottom (pint.Quantity, optional) – The bottom of the layer as a pressure or height above the surface pressure (default None)

  • depth (pint.Quantity, optional) – The thickness of the layer as a pressure or height above the bottom of the layer (default 100 hPa)

  • interpolate (bool, optional) – Interpolate the top and bottom points if they are not in the given data



Only functions on 1D profiles (not higher-dimension vertical cross sections or grids). Since this function returns scalar values when given a profile, this will return Pint Quantities even when given xarray DataArray profiles.

Changed in version 1.0: Renamed p, dewpt, heights parameters to pressure, dewpoint, height