[Proj] proj4 definition for transverse mercator projection from RegCM3 model for North America

[support.mn at elisanet.fi]

Hello,

> The sphere ellipsoid is a guess as they didn't provide the geographic coordinate system

check your parameters, especially if the assumption about the sphere is correct and if the
sphere is of a right size? Test with the normal NAD83, NAD27, WGS84 datums with their
correct ellipsoids Clarke 1866,  GRS 80 and WGS84 etx.

http://en.wikipedia.org/wiki/North_American_Datum

http://en.wikipedia.org/wiki/World_Geodetic_System

Janne.