New answers tagged srtm
The SRTM data is a digital surface model as it includes canopy (and buildings and other infrastructure etc), there's further information in this question. To get a bare earth DEM from SRTM data requires some processing, for example see Gallant et al (2012). You don't specify what part of the world you want data for, but there is 30m SRTM DSM and DEM data ...
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