The Surveys Section, Geodetic Control Unit has published the following one-page fact sheets, which can be found on the Open Government Portal at:
The fact sheets provided on the Portal are as follows:
- Fact Sheet 01 - North American Datum 1983 (NAD83) Data Products
- Fact Sheet 02 - Impact of NAD83 Adoption
- Fact Sheet 03 - Introduction to NAD83
- Fact Sheet 04 - NAD83 (CSRS) Data Products
- Fact Sheet 05 - Introduction to NAD83 Canadian Spatial Reference System (CSRS)
- Fact Sheet 06 - Impact of NAD83 (CSRS) Adoption
- Fact Sheet 07 - Canadian Base Network (CBN)
- Fact Sheet 08 - Alberta Survey Control Marker (ASCM) Index Maps
- Fact Sheet 09 - Grid Bearings and Astronomic Azimuths
- Fact Sheet 10 - Mapping Planes in Alberta
Digital Data Format Requirements
Electronic Distance Measurement (EDM) Baseline Guidelines
The Geodetic Control Unit issues two key documents:
The Electronic Distance Measurement (EDM) Calibration Baseline Lengths listings give the pillar-to-pillar (slope distance) baseline length values for the four EDM calibration baselines in Alberta (Lethbridge, Calgary, Edmonton and Grande Prairie). These values are based on precise measurement and adjustment undertaken by Geodetic Survey Division of Geomatics Canada (NRCan). All of the baselines are re-measured and adjusted, and new values published on a five-year basis. Please note that on each listing, there is an adopted date that signifies when the slope distances were formally published by the Surveys Section.
The Guidelines for Electronic Distance Measurement Calibration Baseline Surveys in Alberta describe the four EDM calibration baselines in the province of Alberta, as well as how to undertake an EDM calibration baseline survey. The guidelines have been developed to assist users in verifying that their EDM equipment is working within the EDM manufacturer’s stated specification for scale error and constant error. They also include requirements for submission of EDM calibration survey data to the Surveys Section for evaluation.
All users of the Alberta EDM calibration baselines are responsible for any damages to any property (public or private) that may occur when using the baselines. In addition, users should exercise normal traffic safety precautions while conducting calibration surveys. Any damage or activities which may result in damage to the baseline must be reported to the Surveys Section.
Guidelines for Alberta Survey Control Using GPS
This manual is a primary reference for municipalities and contractors who wish to establish and integrate survey control markers into the provincial spatial referencing system. The manual is a recompilation and update of the previous Specifications, Standards & Guidelines for Alberta Survey Control, (Chapter 5: GPS Surveys), August 28, 1992.
The specifications and guidelines contained in the manual are intended for surveys of the Alberta Survey Control (ASC) network (provincial spatial referencing system) using the Global Positioning System (GPS). These specifications and guidelines have been developed to provide the information necessary to achieve two- and three-dimensional, second-order relative positioning using GPS.
GPS products available from the Geodetic Control Unit: