My experience over many years gliding at Cooma and Temora is: Summer met balloon flights in EDST from Wagga don't produce charts before 11:30 and by then most of the task setting and planning have been fixed and gliders are moving to the launch point. So the balloon flight is of limited use. During competitions the organisation often sends a powered aircraft aloft at 08:30 to get the data.
For gliding at Cooma the data related to an often different atmosphere across the Great Divide. RASP is providing good predictive data and I have often used RASP temp traces, height of critical updraft strength, up to 24 hours ahead for planning and am amazed how good it is. Also the RASP associated with Cooma flying and wave prediction is similarly amazingly accurate although processing means the data is perhaps only 12 hours in front of expected takeoff. FYI as requested. Alan Wilson Canberra Sent from my iPad > On 20 Aug 2014, at 17:47, Mike Borgelt <mborg...@borgeltinstruments.com> > wrote: > > How does the timing of the latest chart compare with simply getting it here? > > http://www.bom.gov.au/aviation/observations/aerological-diagrams/ > > Mike > > > > At 04:49 PM 20/08/2014, you wrote: >> G’day. >> >> I’ve recently received email from the Bureau of Meteorology to say that the >> data feed they’ve historically provided to make >> http://slash.dotat.org/cgi-bin/atmos work will, in future, cost $1125 per >> annum. >> >> Or, more to the point: The data itself will continue to be free, but >> there’s a $1125 per annum fee to be a registered user of it. >> >> I can get similar data at no cost from University of Wyoming’s Upper Air >> Project. In my experience, the sounding data from there is delayed by an >> hour or so, because they get it from the BoM too, then process it before >> they make it available. >> >> I see a non-trivial number of HTTP server hits on my website, so I know >> people are still using the facility. But server hits don’t tell me if >> they’re getting value out of it. >> >> So: Is it still useful? >> >> My options, as I see them, are: >> >> 1. Pay BoM, >> 2. Refactor the code to fetch from UoW, and accept that it’ll run a little >> bit late; or >> 3. Shut down the site. >> >> Currently leaning towards (2), but nobody is getting value out of it then >> (3) is clearly my path of least resistance. >> >> Thoughts, comments, requests? >> >> - mark >> >> >> >> _______________________________________________ >> Aus-soaring mailing list >> Aus-soaring@lists.internode.on.net >> To check or change subscription details, visit: >> http://lists.internode.on.net/mailman/listinfo/aus-soaring > Borgelt Instruments - design & manufacture of quality soaring instrumentation > since 1978 > www.borgeltinstruments.com > tel: 07 4635 5784 overseas: int+61-7-4635 5784 > mob: 042835 5784 : int+61-42835 5784 > P O Box 4607, Toowoomba East, QLD 4350, Australia > > _______________________________________________ > Aus-soaring mailing list > Aus-soaring@lists.internode.on.net > To check or change subscription details, visit: > http://lists.internode.on.net/mailman/listinfo/aus-soaring
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