7
$\begingroup$

What is the difference between "liquid water content" and "absolute humidity" in meteorology? Both have units of mass/volume.

$\endgroup$
8
$\begingroup$

According to the online chapter Water Vapor (University of British Columbia), the two variables you ask about are defined as:

Absolute humidity

$$\rho_{v}=\frac{m_{water\ vapour}}{volume}$$

Liquid water content

$$\rho_{LWC}=\frac{m_{liquid\ water}}{volume}$$

The main difference is that absolute humidity measures the mass of water vapour and the LWC measures the mass of suspended or falling liquid water content in a unit volume of air. A handy definition linking the two terms is (from the linked document):

LWC is the liquid-water analogy to the absolute humidity for water vapor.

$\endgroup$
  • $\begingroup$ Thank you the answer and the reference - this really cleared it up for me! $\endgroup$ – boxofchalk1 Dec 18 '14 at 7:14
  • $\begingroup$ @boxofchalk1 happy to have helped! I was able to learn something new too. $\endgroup$ – user889 Dec 18 '14 at 7:15

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.