[TRNSYS-users] weather file .tm2

David Bradley bradley at tess-inc.com
Mon Jul 24 07:00:07 PDT 2006


I believe that in the TMY2 format, columns 2 and 3 of each line contain the 
year on which that data point was recorded. I am not sure what is done for 
TMY2 files that are "created" instead of containing recorded data.
Kind regards,
   David

At 02:34 7/24/2006, keilholz, werner wrote:
>Hi Franck,
>
>TM2 is only a data format. It depends on what the person who created the 
>file put into it. Usually, the data are averages over many years.
>
>The TM2 files delivered with TRNSYS were created with METEONORM
>(see 
><http://software.cstb.fr/soft/present.asp?context=Meteonorm&langue=us>http://software.cstb.fr/soft/present.asp?context=Meteonorm&langue=us 
>)
>and do not represent 'real years', but 'Typical Mean Years' (that's where 
>the names TM2 and TMY come from).
>
>The TMY2 users manual is available online 
><http://rredc.nrel.gov/solar/pubs/tmy2/>http://rredc.nrel.gov/solar/pubs/tmy2/ 
>.
>
>Werner
>
>
>----------
>De : trnsys-users-bounces at engr.wisc.edu 
>[mailto:trnsys-users-bounces at engr.wisc.edu] De la part de franck clottes
>Envoyé : dimanche 23 juillet 2006 15:48
>À : trnsys-users at engr.wisc.edu
>Objet : [TRNSYS-users] weather file .tm2
>
>Hi,
>
>What is the year used by weather files .tm2 ?
>Is it the year 1995 or an average over several years??
>
>Sorry for my bad english
>
>Franck!
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>TRNSYS-users mailing list
>TRNSYS-users at engr.wisc.edu
>https://www.cae.wisc.edu/mailman/listinfo/trnsys-users

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