Calculate saturation equivalent potential temperature.
This calculation must be given an air parcel’s pressure and temperature.
The implementation uses the formula outlined in [Bolton1980] for the
equivalent potential temperature, and assumes a saturated process.
First, because we assume a saturated process, the temperature at the LCL is
equivalent to the current temperature. Therefore the following equation.
Then the potential temperature at the temperature/LCL is calculated:
it follows that:
Both of these are used to calculate the final equivalent potential temperature:
pressure (pint.Quantity) – Total atmospheric pressure
temperature (pint.Quantity) – Temperature of parcel
pint.Quantity – Saturation equivalent potential temperature of the parcel
[Bolton1980] formula for Theta-e is used (for saturated case), since according to
[DaviesJones2009] it is the most accurate non-iterative formulation