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PEI Coordinate System

Provincial GIS Coordinates

The coordinate plane of the province’s Geographic Information System was realized by using a Double Stereographic Projection with parameters specific to this province as listed below and is referred to as the PEI Survey Reference System.

The projection is referenced to the North American Datum of 1983 realized from the Canadian Spatial Reference System (NAD83(CSRS)).

The Geodetic Reference System of 1980 (GRS80) is the ellipsoid upon which the datum is realized. This reference ellipsoid or ellipse of revolution, was fixed in 1980 as a "best" means to mathematically represent the earth’s surface.

Parameters for the PEI Survey Reference System are as follows:

Projection Stereographic Double Projection
Origin Latitude: N 47° 15'
Longitude: W 63° 00'
Scale Factor at Origin 0.999912
False Origin Northing: 800,000 Metres
Easting: 400,000 Metres

NAD 83(CSRS) Datum Parameters
First Eccentricity e² =0.006694380
Second Eccentricity e'² =0.006739497
Gaussian Mean Radius at Origin =6,379,782.0995 Metres

PEIGeocalc is a transformation software that enables coordinates to be converted to and from various projections and datums such as NAD83(CSRS), ATS77, or again NAD27. For further information or to obtain a copy of this software contact:
Chief Surveyor:
David Morris


Interpretation and use of the data herein is not warranted in any manner whatsoever, now or at any time in the future, by the Province of Prince Edward Island [and/or other appropriate agency].

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