Evaporation rates

[Simmons99]

Yes.

Of course, I might anticipate your next question which is how much faster does water evaporate as a function of the level of relative humidity. As a first approximation and with temperature, air density, and air flow (i.e. wind) held constant, the rate of evaporation is inversely proportional to the relative humidity (RH). So the rate is highest (say, 1.0) with 0% RH and is 10% lower (say, 0.9) at 10% RH, half the rate at 50% RH, 90% lower (say, 0.1) at 90% RH and is 0 (i.e. no evaporation) at 100% RH.

Richard

Phillbo......so in other words - when it's pouring there is no evaporation - but when it's really dry...yes you have to top off the pool

LOL - I'm laughing again - Richard you might like my post on the anti-freeze thread...... I need to get more than 4hrs of sleep a night or I'm going to start getting banned from forums