showalter_index#
- metpy.calc.showalter_index(pressure, temperature, dewpoint)#
Calculate Showalter Index.
Showalter Index derived from [Galway1956]: SI = T500 - Tp500
where: T500 is the measured temperature at 500 hPa Tp500 is the temperature of the parcel at 500 hPa when lifted from 850 hPa
- Parameters
pressure (
pint.Quantity
) – Atmospheric pressure, in order from highest to lowest pressuretemperature (
pint.Quantity
) – Ambient temperature corresponding topressure
dewpoint (
pint.Quantity
) – Ambient dew point temperatures corresponding topressure
- Returns
pint.Quantity
– Showalter index