surface_based_cape_cin

metpy.calc.surface_based_cape_cin(pressure, temperature, dewpoint)[source]

Calculate surface-based CAPE and CIN.

Calculate the convective available potential energy (CAPE) and convective inhibition (CIN) of a given upper air profile for a surface-based parcel. CIN is integrated between the surface and LFC, CAPE is integrated between the LFC and EL (or top of sounding). Intersection points of the measured temperature profile and parcel profile are logarithmically interpolated.

Parameters

  • pressure (pint.Quantity) – Atmospheric pressure profile. The first entry should be the starting (surface) observation, with the array going from high to low pressure.

  • temperature (pint.Quantity) – Temperature profile corresponding to the pressure profile.

  • dewpoint (pint.Quantity) – Dewpoint profile corresponding to the pressure profile.

Returns

  • pint.Quantity – Surface based Convective Available Potential Energy (CAPE).

  • pint.Quantity – Surface based Convective INhibition (CIN).

See also

cape_cin(), parcel_profile()