How to open a CDED data set (DEM file) North of the 68th parallel with Arc Map and MapInfo softwares?
As you may be aware, Arc Map and MapInfo GIS softwares are unable to read a CDED file above the 68th parallel since the pixels are not square. We suggest two methods: • Here is a guide which explains how to open a CDED file (Canadian Digital Elevation Data) North of the 68th parallel with Arc Map and MapInfo GIS softwares once it has been converted to the UTM projection. • Contrary to the solution used previously, this second method can be used in non-interactive mode. The open source utility gdal_translate makes it possible to convert raster files from one format to another by applying certain transformations. We can use it to convert a CDED file with 1201×1201 non square pixels into 2402×1201 square pixels. Obviously, the resulting file does not meet CDED specifications exactly since it is different than 1201×1201 pixels. It is however in the USGSDEM format. For a CDED tile resampling between the 68th and 80th parallel: gdal_translate -of USGSDEM -outsize 2402 1201 CDED_input CDED_re
Related Questions
- Why does the coverage of NED 1/3 arc second data appear to include a greater area than that covered by the 10 meter DEMs?
- How to open a CDED data set (DEM file) North of the 68th parallel with Arc Map and MapInfo softwares?
- Can I have CDED files (DEM file) at the 1:50,000 or 1:250,000 scale in a single file for Canada?
