[Proj] A datum question if I may

Schuyler Erle schuyler at nocat.net
Tue Oct 25 18:49:52 EDT 2005

* On 25-Oct-2005 at  3:14PM PDT, Hersman, William said:
> Is there a difference between a NAD27->NAD83 conversion and a
> NAD27->WGS84 conversion ?  Much ?

Almost none. According to
http://www.mentorsoftwareinc.com/resource/Nad83.htm, NAD83 and WGS84
start to differ at something like the seventh or eighth decimal place,
unless I've completely misunderstood this article.


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