[Proj] NAD 27 v 83 Distances
nhv at cape.com
Fri Oct 1 11:29:09 EST 2010
use the proj geod utility
or NGS has an online calculator that you can test some points with
On Oct 1, 2010, at 12:14 PM, Robert McFaul wrote:
> I'm concerned about whether ground surface distances are different between
> NAD27 and NAD83. I'm in California (southern) and thinking about a
> of a project to NAD83. I have some cross section distances measured (1000 to
> 3000 feet in length) and suddenly am wondering what sort of differences
> be involved by this change in systems.
> What can I expect here?
> robert mcfaul
> robert at dgi.com
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> Proj at lists.maptools.org
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