[ale] Meeting directions web page

[Ned Williams]

Joe Steele wrote:

> With lat./long. coordinates given to the nearest thousandth of a
> minute, I think that pinpoints the meeting place to somewhere within
> a 3 or 4 foot radius.  I doubt the change in floor elevation within
> that area is worth considering (in terms of people getting lost).
> A single Z coordinate should suffice.
>
> Probably of greater importance is knowing which geodetic datum was
> used as a reference for the coordinates given (guessing incorrectly
> might throw off the position by as much as a hundred or more yards).
>
> --Joe
>
> -----Original Message-----
> From:   Eric Z. Ayers [SMTP:eric.ayers at mindspring.com]
> Sent:   Tuesday, August 07, 2001 11:26 PM
> To:     Ned Williams
> Cc:     ale at ale.org
> Subject:        Re: [ale] Meeting directions web page
>
> If you can provide it, I'll update the page.
> Note that the Z coordinate depends on where you are standing in the
> room, so you might want to provide a range...
>
> Ned Williams wrote:
>
> > just a thought but, why is it that the written directions tell us what
> > floor the meeting is on, but the GPS directions do not specify the Z
> > axis?
> >
> > thanks
> > Ned Williams
> > :)
> >
> >
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> >
> >
>
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While I am ingnorant to the relevence of datums, why not just use an IFR certified
aviation gps system and get the Above Ground Level reading...
To just find one I can borrow from someone's cessana to get the values
Ned


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