Websites such as this one: https://gisgeography.com/best-free-gis-data-sources-raster-vector/
have many references to elevation data. They are all in *.jpg
or other image format, however. What I need is simply a flat text file with lat/long/elevation as real numbers.
I suppose there is a way to find or extract such data. Any pointers?
contours
tool). Sometimes DEM/DTM are supplied as xyz, depends on you budget, your area of interest etc.