Canadian Spatial Reference System (CSRS)

The Geodetic Survey Division (GSD) is responsible to maintain, continuously improve, and facilitate efficient access to what is now known as the Canadian Spatial Reference System (CSRS). The result is a national coordinate system which serves as a reference for all mapping, charting, navigation, boundary demarcation, crustal deformation, and other georeferencing needs.

Eligibility Criteria

Individual firms or consortia interested in using and distributing Canadian geodetic products and services.

Summary

Canadian Spatial Reference System Online Database (CSRS Online Database)
The CSRS Online Database allows users direct access to the Canadian Active Control System products (CACS); the primary horizontal and vertical control networks archived on the Canadian Geodetic Information System (CGIS) and selected GSD software/data (GPSPace, NTv2 and GPS-H) and access to the CSRS - Precise Point Positioning (PPP) online GPS processing.

CSRS - Precise Point Positioning Service (PPP)  
An online global service for GPS data post-processing that allows GPS users to submit single (code) or dual frequency (code/phase), static or kinematic observation data over the Internet and recover, using precise GPS Orbit and Clock information, enhanced positioning precisions in the Canadian Spatial Reference System NAD83CSRS and the International Terrestrial Reference Frame (ITRF).

Active Networks - Canadian Spatial Reference System

• Active Control Point (ACP) Observational Data - ACP observational data consist of dual-frequency calibrated satellite code and carrier phase observations from continuous tracking of GPS satellites at 30-second intervals. Data are archived daily in the RINEX format version 2.
• GPS Satellite Precise Ephemerides - GPS satellite ephemerides are computed from the data collected at the Canadian stations augmented by globally distributed stations. Data are archived daily in the SP3 format.
• GPS Satellite Clock Corrections - GPS satellite clock corrections are computed from observational data and final GPS satellite ephemerides.
• Active Control Point (ACP) Map - Provides single point ACP station descriptions.

Passive Networks - Canadian Spatial Reference System
The Geodetic Survey Division maintains and provides access to the Canadian Spatial Reference System (CSRS) which is based on primary vertical and horizontal networks of groundbased survey control and other georeferencing networks.

• Canadian Base Network (CBN) - The Canadian Base Network is a 3-D network of monumented survey control in the Canadian Spatial Reference System - NAD83CSRS.
• Canadian Gravity Standardization Network (CGSN) - The Canadian Gravity Standardization Net (CGSN) provides a nationwide gravity datum.
• International Absolute Gravity Base Station Network (IAGBN)
• Traditional Reference Networks - National Horizontal and Vertical Primary Reference Networks

Software
GPSPACE - GPS Positioning from ACS Clocks and Ephemerides Version 3.3 (Windows).

GPS-H - GPS Height Transformation Package. Convert NAD83CSRS ellipsoidal heights to CGVD28 orthometric heights.

NTv2 - National Transformation Software Package: NAD27 - NAD83. Enter the geographic coordinates of the point for which you want to apply the transformation. Select the direction of the transformation.

GSRUG - Geodetic Survey Routine, UTM/TM to/from Geographic coordinate conversion. You can compute either Universal Transverse Mercator (UTM) coordinates from the geographic latitude and longitude of a point or the reverse conversion.

INDIR - Geodetic Direct and Inverse Computation. You can perform either geodetic direct or inverse computations.

TRNOBS - may be used to transform geodetic coordinates between NAD83CSRS and all official realizations of the International Terrestrial Reference Frame (ITRF).

Publications
GPS Positioning Guide
A user's guide to the Global Positioning System, Covering: GPS - Basic Concepts; Positioning - Basic Concepts; GPS Positioning Techniques and GPS Procedures.

Guidelines and Specifications for GPS Surveys, Release 2.1
These guidelines and specifications are intended for surveys using GPS for the GSD to ensure the efficient execution of survey operations within acceptable standards, both internally or under contract.

New Brunswick Contact(s):
Mr. Léo-Guy LeBlanc
Director of Surveys
Service New Brunswick
985 College Hill Road
P.O. Box 1998
Fredericton, New Brunswick  E3B 5G4
Telephone: 506-453-2353
Fax: 506-453-3898
E-mail: leo-guy.leblanc@snb.ca

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National Contact(s):
Mr. Stephen Frakes
Chief
Project Development Branch
US National Geodetic Survey
1315 East West Highway
Silver Spring  MD 20910-3282
United States
Telephone: 301-713-3194 ext. 111
Fax: 301-713-4316
E-mail: steve.frakes@noaa.gov
Web site: http://www.ngs.noaa.gov
Hours of operation: Mon.-Fri., 7:00 a.m. - 4:30 p.m., Eastern Time

Geodetic Survey Division
Geomatics Canada
Natural Resources Canada
615 Booth Street
Ottawa, Ontario  K1A 0E9
Telephone: 613-995-4410
Fax: 613-995-3215
TTY (hearing impaired): 613-996-4397
E-mail: information@geod.nrcan.gc.ca

Dr. Savithri Narayanan
Director General, Dominion Hydrographer
Canadian Hydrographic Service
Fisheries and Oceans Canada
3rd Floor
615 Booth Street
Ottawa, Ontario  K1A 0E6
Telephone: 613-995-4413
Fax: 613-996-9053
TTY Toll-free (hearing impaired): 613-941-6517
E-mail: chsinfo@dfo-mpo.gc.ca
Web site: http://www.dfo-mpo.gc.ca/home-accueil_e.htm
Hours of operation: 8:00 a.m. to 8:00 p.m. Monday to Friday (Eastern time).