[TRNSYS-users] Type 15-6 weather data reader

David BRADLEY d.bradley at tess-inc.com
Tue Jul 22 08:11:16 PDT 2014


Chun Kwong,
   Precipitable water is a measure of the amount of water contained in a 
vertical column above the surface if it were all precipitated out. The 
idea of it is to provide an idea of muchh rain or snow might fall as a 
result of a thunderstorm or low pressure system.
Best,
  David


On 7/17/2014 20:51, C K Lee wrote:
> Dear all.
>
> I find that in Type 15-6, there is a output "precipitable water". Is 
> it the rainfall level?  If so, what is the unit for this output?  When 
> I try to use the standard .TM2 weather file for Hong Kong provided by 
> TRNSYS, it gives a non-zero value all year around for that output 
> which seems to be unreasonable.  Can anyone advise what does that 
> output mean?  Thank you!
>
> Best Regards
> Chun Kwong LEE
> City University of Hong Kong
>
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>

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