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List:       flightgear-users
Subject:    [Flightgear-users] Re: Two METAR questions.
From:       Melchior FRANZ <mfranz () aon ! at>
Date:       2004-08-16 22:02:56
Message-ID: 200408170002.57040 () pflug2 ! gphy ! univie ! ac ! at
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* Chris Metzler -- Monday 16 August 2004 23:29:
> 1.  How often does fgfs, while running, connect and fetch METAR info
> and adjust it in-sim?  What's the data reload rate?

If checks every minute for the next METAR station and reloads immediately
if the station has changed. If the station has not changed, it reloads every
15 minutes anyway.



> 2.  Is the METAR data real-time?

Sort of, as described above. But note, that the METAR data sets may
already be one or two hours old at our source (http://www.noaa.gov/).
In some rare cases, METAR reports haven't been updated for *years*.
Probably, since the concerned stations ceased to report/exist.
There's no constant lag. And there's no interpolation yet. Weather
changes are often a bit abrupt.  ;-)

m.

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