AI-generated Key Takeaways
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The Canadian Digital Elevation Model (CDEM) provides elevation data for Canada, stemming from the Canadian Digital Elevation Data (CDED).
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CDEM is comprised of multiple DEMs with varying resolutions, based on latitude, with a base resolution of 0.75 arc-seconds.
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Elevations in the CDEM represent either ground or reflective surface elevations and range from approximately -226 meters to 5944 meters.
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The dataset is available from 1945 to 2011 and is licensed under the Open Government Licence - Canada.
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CDEM can be accessed and analyzed using Google Earth Engine.
- Dataset Availability
- 1945-01-01T00:00:00Z–2011-01-01T00:00:00Z
- Dataset Provider
- NRCan
- Tags
Description
The Canadian Digital Elevation Model (CDEM) is part of Natural Resources Canada's (NRCan) altimetry system and stems from the existing Canadian Digital Elevation Data (CDED). In these data, elevations can be either ground or reflective surface elevations.
The CDEM is comprised of multiple DEMs with varying resolutions. These vary according to latitude and have a base resolution of 0.75 arc-seconds. For more information see the Product Specifications
Contains information licensed under the Open Government Licence - Canada.
Bands
Pixel Size
23.19 meters
Bands
| Name | Units | Min | Max | Pixel Size | Description |
|---|---|---|---|---|---|
elevation |
m | -226* | 5944* | meters | Elevation |
Terms of Use
Terms of Use
Licensed under the Open Government Licence - Canada.
Explore with Earth Engine
Code Editor (JavaScript)
var dataset = ee.ImageCollection('NRCan/CDEM'); var elevation = dataset.select('elevation'); var elevationVis = { min: -50.0, max: 1500.0, palette: ['0905ff', 'ffefc4', 'ffffff'], }; Map.setCenter(-139.3643, 63.3213, 9); Map.addLayer(elevation, elevationVis, 'Elevation');