mixed_layer_cape_cin#

metpy.calc.mixed_layer_cape_cin(pressure, temperature, dewpoint, **kwargs)[source]#

Calculate mixed-layer CAPE and CIN.

Calculate the convective available potential energy (CAPE) and convective inhibition (CIN) of a given upper air profile and mixed-layer parcel path. 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. Kwargs for mixed_parcel can be provided, such as depth. Default mixed-layer depth is 100 hPa.

Parameters:

pressure (pint.Quantity) – Pressure profile
temperature (pint.Quantity) – Temperature profile
dewpoint (pint.Quantity) – Dewpoint profile
kwargs – Additional keyword arguments to pass to mixed_parcel

Returns:

pint.Quantity – Mixed-layer Convective Available Potential Energy (CAPE)
pint.Quantity – Mixed-layer Convective INhibition (CIN)

Examples

>>> from metpy.calc import dewpoint_from_relative_humidity, mixed_layer_cape_cin
>>> from metpy.units import units
>>> # pressure
>>> p = [1008., 1000., 950., 900., 850., 800., 750., 700., 650., 600.,
...      550., 500., 450., 400., 350., 300., 250., 200.,
...      175., 150., 125., 100., 80., 70., 60., 50.,
...      40., 30., 25., 20.] * units.hPa
>>> # temperature
>>> T = [29.3, 28.1, 25.5, 20.9, 18.4, 15.9, 13.1, 10.1, 6.7, 3.1,
...      -0.5, -4.5, -9.0, -14.8, -21.5, -29.7, -40.0, -52.4,
...      -59.2, -66.5, -74.1, -78.5, -76.0, -71.6, -66.7, -61.3,
...      -56.3, -51.7, -50.7, -47.5] * units.degC
>>> # relative humidity
>>> rh = [.85, .75, .56, .39, .82, .72, .75, .86, .65, .22, .52,
...       .66, .64, .20, .05, .75, .76, .45, .25, .48, .76, .88,
...       .56, .88, .39, .67, .15, .04, .94, .35] * units.dimensionless
>>> # calculate dewpoint
>>> Td = dewpoint_from_relative_humidity(T, rh)
>>> mixed_layer_cape_cin(p, T, Td, depth=50 * units.hPa)
(<Quantity(711.239032, 'joule / kilogram')>, <Quantity(-5.48053989, 'joule / kilogram')>)

Examples using `metpy.calc.mixed_layer_cape_cin`#

Advanced Sounding Plot with Complex Layout

Sounding Calculation Examples

mixed_layer_cape_cin#

Examples using metpy.calc.mixed_layer_cape_cin#

Examples using `metpy.calc.mixed_layer_cape_cin`#