higher amount of solar energy.
After evaporation the concentration of salts increase.
The concentration of solutes increase after evaporation.
The density increase after evaporation.
An temerature increase also increase the evaporation.
The density of water increase after evaporation.
The speed of evaporation increase when the temperatre increase.
During evaporation the density increase.
The total amount of global evaporation is 48800 km3
Evaporation increase with the increase of temperature and decrease of pressure..
Increase heat.
I don't understand what you are asking. If evaporation of a liquid occurs then the volume will decrease not increase. Then if you want to measure the amount or volume of liquid remaining (or the amount which has evaporated) then you would simply measure the volume beforehand and the volume after. Is this what you were asking or perhaps you want to know what instrumentation you would use? Padraic