Data Citation

The vast majority of data used in this service was retrieved from NASA Land Processes Distributed Active Archive Center (LP DAAC) Products. This data is distributed by the Land Processes Distributed Active Archive Center (LP DAAC), located at USGS/EROS, Sioux Falls, SD. http://lpdaac.usgs.gov NASA JPL (2013). NASA Shuttle Radar Topography Mission Global 3 arc second [Data set]. NASA EOSDIS Land Processes DAAC. Accessed 2017-10-28 from https://doi.org/10.5067/MEaSUREs/SRTM/SRTMGL3.003

Specific to the 30 meter resolutions

The data is taken directly from the ASTGTMv003 dataset and is openly available for download: NASA/METI/AIST/Japan Spacesystems, and U.S./Japan ASTER Science Team. ASTER Global Digital Elevation Model V003. 2018, distributed by NASA EOSDIS Land Processes DAAC, https://doi.org/10.5067/ASTER/ASTGTM.003