Looking for bathymetric (underwater elevation/depth) data? Go to our Bathymetry Data page.

Elevation data generally comes in two formats: contour lines or digital elevation models (DEMs). Contour lines are the elevation lines you often see on topographic maps and they are generally measured in feet or metres above sea level. DEMs are raster datasets that have pixels like a digital image, except that each pixel contains an elevation value for the land area (e.g. 900m2 in a DEM with a 30m resolution) that the pixel covers. It is possible to create DEMs from contours and contours from DEMs using GIS software. 

Below is a list of elevation datasets by geography, beginning with Ottawa-Gatineau and moving up to the entire world. Those available only to Carleton students, faculty, and staff are marked with a Carleton logo. All others are freely available to anyone.

Elevation data for Ottawa-Gatineau | Ontario | Canada | United States of America | International


Ottawa-Gatineau

Contours

DEMs, LiDAR, or surface models

Ontario

Contours

DEMs

Canada

Contours

DEMs & LiDAR

United States of America

Contours

DEMs

International

Contours

DEMs