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awesome-dem's Issues

Several points

Hi, congrats on the initiative!

I'm not sure if I should make a PR or start a discussion...

There is a recent paper about the terminology of DEMs (I'm one of the authors) that might be interesting to add to the reference list:

Guth, P.L., Niekerk, A.V., Grohmann, C.H., Muller, J.-P., Hawker, L., Florinsky, I.V., Gesch, D., Reuter, H.I., Herrera-Cruz, V., Riazanoff, S., Lópéz-Vázquez, C., Carabajal, C.C., Albinet, C., Strobl, P., 2021 - Digital Elevation Models: Terminology and Definitions.
Remote Sensing, 13(18):3581.
https://doi.org/10.3390/rs13183581

From that paper, you'll see that we don't equate DEM with DTM. DEM is a generic term that can be used for any raster elevation dataset, while DTM should only be used when the data represents the terrain. All of the global or quasi-global DEMs (SRTM, Copernicus, ASTER, ALOS, NASADEM, TanDEM-X) are DSMs since they don't represent the topographic surface in vegetated or urban areas.

And here another paper comparing these global DEMs, this time for areas in Brazil:

Grohmann, C.H., 2018. Evaluation of TanDEM-X DEMs on selected Brazilian sites: comparison with SRTM, ASTER GDEM and ALOS AW3D30. Remote Sensing of Environment, 212C:121-133.
https://doi.org/10.1016/j.rse.2018.04.043

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