Natural Resources Canada
www.nrcan.gc.ca
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Products and Services
These products and services are accessible via the CSRS Online Database.
- CSRS-PPP an online Global GPS Processing Service - Process RINEX observations from single or dual-frequency receivers operation in static or kinematic mode.
- RINEX Observation Files for Post-Processing - Canadian continuously operating reference stations (Canadian Active Control Points - ACP).
- Precise Ephemeris Files - Precise GPS satellite ephemeris files generated from Canadian and International reference stations. NRCan uses (ULTRA RAPID) Precise Ephemerides to produce the GPS real-time corrections used in the CDGPS service.
- High Precision 3D Geodetic Networks - Monuments with NAD83CSRS coordinates from Global Positioning System (GPS) observations.
- 2D Northern Horizontal Network - Northern monuments with NAD83(Original) coordinates from terrestrial observations.
- Vertical Benchmarks - CGVD28 orthometric elevations and descriptions.
- Gravity Reference Stations - Canadian Gravitational Standardization Network g-values and descriptions.
- Downloadable software - Download standalone PC versions of programs GPS-H (for transformation of ellipsoidal heights to mean-sea-level heights), NTv2 (for transformation between NAD27 and NAD83 ) and TRNOBS (for transformation between ITRF and NAD83CSRS).
Related Information
* Contact your Provincial Survey Agencies for other transforms Grid Shift Files that might be available for your area. Example: "NAD83(Original)" to "NAD83CSRS" or "ATS77" to "NAD83CSRS"Survey products and services are also available from Provincial Survey Agencies.
http://www.geod.rncan.gc.ca/products-produits/index_e.php