How to find water vapour density for gaspl

Question

vaggelis papasot on 14 Nov 2017

0

Edited: Michal Kvasnicka on 14 Nov 2017

I want to use gaspl function. It takes as input arguments distance m, temperature in Celsius, frequency in the interval of [100-1000] GHz, and water vapour density in g/m^3. My question is if i know all the parameters except density how can if find it?

0 Comments

Sign in to comment.

Sign in to answer this question.

Answer 1

Honglei Chen on 14 Nov 2017

0
Link

Direct link to this answer

https://ww2.mathworks.cn/matlabcentral/answers/367021-how-to-find-water-vapour-density-for-gaspl#answer_291106

That could be a measurement value you obtain from, say, observatory or historical measurement data? For example, in ITU standard P.676, the example curve is plotted using standard atmosphere, in which the water vapour density is considered as 7.5 g/m^3.

HTH