Canadian Elevation Models

Canadian DEM (CDEM).

Introduction

The Canadian elevation model in its 0.75-arc-second resolution is a digital elevation model (DEM’s) produced by Natural Resources Canada (NRCan). CDEM is mainly based on elevation contours and hydrographic data from NRCan's Geospatial Data Base at the scale of 1:50,000, or at other scales provided by other provinces and territories.

Please consult the user guide (see link below) for more details.

Dataset Overview

• Spatial Coverage: Canada
• Resolution:
  • 0.75 arc-second (approximately 20m) in windPRO
    (resampled with a bi-linear algorithm, if needed)
  • Source data: In-general: 0.75 arc-second resolution below N69, 3-arc-seconds north of N81. Other areas 1.4 arc-second.
• Data-type: Digital Elevation Model (DEM)
• Coordinate system:
  • Horizontal: Geographic WGS - NAD83 (EPSG:4617)
  • Vertical: Canadian Height Reference System, 1928 (CGVD28)
• Version: WindPRO holds the version 1.0 (downloaded august 2024)
• Vertical Accuracy: N/A

Availability from within WindPRO

The data are available directly from within windPRO in 1-arc-second (~30-meter) resolution. The data can be accessed from the online-services in the following objects:

• Line Object (with purpose to height contour lines)
• Elevation Grid Object

License and Attribution

The product belongs to the open data of Natural Resources Canada (NRCan). The data have been licensed under a ‘Creative Commons Attribution 3.0 Australia Licence’ in its version 2 from 2012 - see here.
Please accept the license conditions and use a proper attribution when using this dataset, such as:

Contains: Elevation data from Geoscience Australia, Department of Resources, Energy and Tourism, Canberra, Australia.
© Commonwealth of Australia (Geoscience Australia).
Distribution through EMD and windPRO. 

Acknowledgement

• Geoscience Australia and the pubic of Australia are thanked for producing this digital elevation dataset – and disseminating it in the public domain - and thus for aiding the development of renewable energy.
• Integration of this dataset into EMD services was co-supported through the InnoWind project (www.innowind.dk) which is co-funded by the Danish Innovation Fund

External Links

• CDEM - information sheet - pdf-file [ HERE]
• CDEM - product specification - pdf-file - [ HERE]