Due to a firewall I have no control over I need to use SRTM 1 Sec Grid, but see that “this only works if the folder structure and file names are correct”. Can anyone please tell me the exact details regarding:
Which format of SRTM I should use (and from which website)?
What the “folder structure and file names” need to be in order for this to work?
Alternatively, is it just easier to download SRTM tiles, mosaic them (would any other pre-processing be required?) and use as an External DEM? I see any external DEM needs to be in WGS84 projection and saved as GeoTIFF, but are *.tfw and *.prj files also expected by SNAP (I’m able to output with or without such).
Many thanks in advance