Hello. What is the change in the water vapor concentration gradient in the air at the surface of the seas and lakes that are exposed to the wind?
Evaporation of water from a water surface depends on water temperature, air temperature, air humidity and air velocity above the water surface.
gh = Θ A (xs - x)
where
gh = amount of evaporated water per hour (kg/h)
Θ = (25 + 19 v) = evaporation coefficient (kg/m2h)
v = velocity of wind above the water surface (m/s)
A = water surface area (m2)
xs = maximum humidity ratio of saturated air at the same temperature as the water surface (kg/kg) (kg H2O in kg Dry Air)
x = humidity ratio air (kg/kg) (kg H2O in kg Dry Air)
Note! The units for Θ don't match since the this is an empirical equation - a result of experience and experiments.
- Badges
- Science topic
- Similar topics
- Geoscience
- Atmospheric Sciences
- Atmosphere
- Air