[Cdt-l] Ley map datum?

Jonathan Ley jonathan at phlumf.com
Sat Apr 13 19:29:20 CDT 2013


They're WGS84.

It's kind of "the default" for most GPS uses these days.

-Jonathan

On 4/13/2013 3:59 PM, Bob Bankhead wrote:
> The National Geodetic Survey defines a geodetic datum as "a set of constants
> specifying the coordinate system used for geodetic control, i.e., for
> calculating the coordinates of points on the earth."
>
> Basically, it defines how the GPS coordinates are determined. Hence the
> terms NAD 1927, NAD 1983, and WGS 84.
>
> For more than you'd ever want to know, go to:
>
> http (colon)//staff(dot)bcc(dot)edu/mzamkoto/ppt_gis/Datums(dot)pdf
>
> -----Original Message-----
> From: cdt-l-bounces at backcountry.net [mailto:cdt-l-bounces at backcountry.net]
> On Behalf Of Bob Sartini
> Sent: Saturday, April 13, 2013 3:29 PM
> To: Richard Lowery
> Cc: cdt-l at backcountry.net
> Subject: Re: [Cdt-l] Ley map datum?
>
> Does anyone know what datum means?
>
> On Sat, Apr 13, 2013 at 6:26 PM, Richard Lowery <rlowery2007 at yahoo.com>
> wrote:
>> Does anyone know what the datum is for the Ley maps?
>>
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>




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