topic Re: Canadian Digital Elevation Models? DEM in GIS Life Discussions

Canadian Digital Elevation Models? DEM

SierraNevada — Thu, 30 Nov 2023 23:02:00 GMT

Has anyone found a reliable source for Canadian DEMs that are not too difficult to access? I am looking for one that would cover one in the Manitoba/Saskatchewan area with about a mile of overlap into the US, if possible. I am working in the US and our Northern Territories have pixelated blank spots around the North Dakota Peace Garden where the US/Canada border meet. I need to fill in the gaps. Or maybe there is a better US version of this area that is not missing the border regions. If anyone can point me to one of those, that would work too. It will be used for elevation calculations. Here is what I am working with now. It works great except for the missing pieces on the border. I thought of interpolation but there is too much variation in the topography there that would be lost.

The grey portion is the US Side. The arrows point to the missing data along the border.

Re: Canadian Digital Elevation Models? DEM

Faiez — Thu, 30 Nov 2023 22:39:45 GMT

Hi!

https://earthexplorer.usgs.gov/

Best,

Faiez

GIN

Re: Canadian Digital Elevation Models? DEM

SierraNevada — Fri, 01 Dec 2023 19:40:30 GMT

Thanks Faiez. There is a lot of data on the USGS databank. I haven't found a DEM for the area mentioned yet on there. If you have any suggestions for the filters, let me know. Cheers!

Re: Canadian Digital Elevation Models? DEM

Faiez — Fri, 01 Dec 2023 20:57:47 GMT

Hi!

1. https://earthexplorer.usgs.gov/

2. Create account , it is free and then logging to USGS

3. Select your Area of Study

4. Select Data Sets (Shown below)

5. Select Digital Elevation

6. Select SRTM

7. Click the Result tap it appear both in the top and bottom.

8. Make sure the DEM cover your area of sutdy

9. Select DEM match your area of study, before start download.

10.

11. Then merge your DEM and enjoy working with ArcGIS Pro and AOLN.

Good luck.

Faiez

GIN