e_eq_water_mk

typhon.physics.e_eq_water_mk(T)

Calculate the equilibrium vapor pressure of water over liquid water.

\[\begin{split}\ln(e_\mathrm{liq}) &= 54.842763 - \frac{6763.22}{T} - 4.21 \cdot \ln(T) \\ &+ 0.000367 \cdot T + \tanh \left(0.0415 \cdot (T - 218.8)\right) \\ &\cdot \left(53.878 - \frac{1331.22}{T} - 9.44523 \cdot \ln(T) + 0.014025 \cdot T \right)\end{split}\]

Parameters:

T (float or ndarray) – Temperature [K].

Returns:

Equilibrium vapor pressure [Pa].

Return type:

float or ndarray

See also

e_eq_ice_mk()

Calculate the equilibrium vapor pressure of water over ice.

e_eq_mixed_mk()

Calculate the vapor pressure of water over the mixed phase.

References

Murphy, D. M. and Koop, T. (2005): Review of the vapour pressures of ice and supercooled water for atmospheric applications, Quarterly Journal of the Royal Meteorological Society 131(608): 1539–1565. doi:10.1256/qj.04.94