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XANTRONIX 2025-02-26 22:58:49 -05:00
parent 8969154ecf
commit 0fd70e7ece
1 changed files with 8 additions and 0 deletions
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8
lib/xmet/thermo.py
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@ -11,11 +11,19 @@ def saturated_vapor_pressure(temp: float) -> float:
(7.5 * temp) / (237.3 * temp) (7.5 * temp) / (237.3 * temp)
) )
"""
Return the amount, in grams, of water vapor versus dry air in a parcel of a
given dewpoint and pressure.
"""
def mixing_ratio(dewpoint: float, pressure: float) -> float: def mixing_ratio(dewpoint: float, pressure: float) -> float:
e = vapor_pressure(dewpoint) e = vapor_pressure(dewpoint)
return 621.97 * (e / (pressure - e)) return 621.97 * (e / (pressure - e))
"""
Return the maximum amount, in grams, of water vapor a parcel of a given
temperature and pressure can hold.
"""
def saturated_mixing_ratio(temp: float, pressure: float) -> float: def saturated_mixing_ratio(temp: float, pressure: float) -> float:
es = saturated_vapor_pressure(temp) es = saturated_vapor_pressure(temp)