why SRTM and not ASTER GDEM 2? or Both?

bopen / elevation

Python script to download global terrain digital elevation models, SRTM 30m DEM and SRTM 90m DEM.

http://elevation.bopen.eu

Apache License 2.0

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why SRTM and not ASTER GDEM 2? or Both? #22

Open techmavengeospatial opened 7 years ago

techmavengeospatial commented 7 years ago

Just curious why this is using old SRTM data and not newer ASTER GDEM Version 2 or NED Terrain/Elevation Data? The easy way to download either data is via Global Mapper they provide access to their own Global Mapper Grid Tiles for the World and you can simply export the area you want or export tiles or any of the 30+ formats that it supports. It can be scripted out with a GMS with their scripting language.

alexamici commented 7 years ago

@techmavengeospatial the reasons Elevation currently uses SRTM datasets are:

most people I know prefer SRTM to ASTER data, this may very well be specific of my domain (satellite image processing and simulation)
NED dataset is US specific and Elevation focus is on global coverage.

Elevation design allows for easy adding of new products and data providers, so I'll keep this issue open as an enhancement request al low priority for me.