Re: [Flightgear-devel] Re: Improved Weather

2003-07-08 Thread David Megginson
Etienne Tourigny writes: The work needed would be to map the stations to the associated region and then map the regions to the files for each forecast period. And then write the code to retrieve and put this data in the new weather infrastructure. I'd like to contribute. Does this

Re: [Flightgear-devel] Re: Improved Weather

2003-06-17 Thread Etienne Tourigny
I've found a way to get winds aloft in a text format. It's on the weather.noaa.gov site. It's available in an html page at http://aviationweather.gov/fdwinds. Even better, the following urls have them in plain text for each region: http://weather.noaa.gov/pub/data/raw/fd/ and

Re: [Flightgear-devel] Re: Improved Weather

2003-06-11 Thread Etienne Tourigny
On Mon, 2003-06-09 at 05:45, Erik Hofman wrote: David Megginson wrote: Does anyone know of a world-wide source for downloadable digital information on winds aloft? I think this comes closest to what is available. I'm not sure how usefull these TAF reports are:

Re: [Flightgear-devel] Re: Improved Weather

2003-06-09 Thread Erik Hofman
David Megginson wrote: Does anyone know of a world-wide source for downloadable digital information on winds aloft? I think this comes closest to what is available. I'm not sure how usefull these TAF reports are: http://weather.noaa.gov/weather/taf.shtml Erik

Re: [Flightgear-devel] Re: Improved Weather

2003-06-09 Thread David Megginson
Erik Hofman writes: I think this comes closest to what is available. I'm not sure how usefull these TAF reports are: http://weather.noaa.gov/weather/taf.shtml A TAF is still ground-based -- a METAR is an actual observation, while TAF is a forecast, covering (mostly) the same stuff. All

[Flightgear-devel] Re: Improved Weather

2003-06-08 Thread Melchior FRANZ
* David Megginson -- Sunday 08 June 2003 16:51: You can now set up the environment subsystem to use different weather conditions at different elevations, and to interpolate smoothly among them. The system also handles the boundary layer (near the ground). Now I'm in trouble. How would I let

re: [Flightgear-devel] Re: Improved Weather

2003-06-08 Thread David Megginson
Melchior FRANZ writes: Now I'm in trouble. How would I let the metar script set its data? Delete =all= boundary layer values and only set let lowest boundary layer at station elevation? But what if I start from KCEZ and then land at an airport with much lower ASL? The METAR doesn't

[Flightgear-devel] Re: Improved Weather

2003-06-08 Thread Melchior FRANZ
* David Megginson -- Sunday 08 June 2003 18:56: The METAR doesn't tell you anything about conditions aloft. I know -- that is the problem. :-) On the other hand, assuming the station level values for every altitude, as I do now, is of course not any better than having to make up a few values.

re: [Flightgear-devel] Re: Improved Weather

2003-06-08 Thread David Megginson
Melchior FRANZ writes: OK, I'll do that. How about values below metar station level? I'd just hold them constant. There will be pathological situations, like a station on a hill 5000 ft above a valley, but I don't know what else we can do for now. All the best, David -- David Megginson,

[Flightgear-devel] Re: Improved Weather

2003-06-08 Thread Melchior FRANZ
* David Megginson -- Sunday 08 June 2003 19:45: Melchior FRANZ writes: OK, I'll do that. How about values below metar station level? I'd just hold them constant. There will be pathological situations, like a station on a hill 5000 ft above a valley, but I don't know what else we can do