https://topex.ucsd.edu/WWW_html/srtm15_plus.html
https://catalog.data.gov/dataset/srtm15-plus-data-fusion-of-shuttle-radar-topography-mission-srtm-land-topography-with-measured-
https://topex.ucsd.edu/marine_topo/mar_topo.html
Download at:
SRTM 30+ for bigger areas, less detail.
Dataset Acknowledgement:
Tozer, B, Sandwell, D. T., Smith, W. H. F., Olson, C., Beale, J. R., & Wessel,
P. (2019). Global bathymetry and topography at 15 arc sec: SRTM15+. Earth and
Space Science, 6, 1847. https://doi.org/10.1029/2019EA000658
Dataset Citation:
Tozer, B, Sandwell, D. T., Smith, W. H. F., Olson, C., Beale, J. R., & Wessel,
P. (2019). Global bathymetry and topography at 15 arc sec: SRTM15+. Distributed
by OpenTopography. https://doi.org/10.5069/G92R3PT9 Accessed: 2021-01-15
Last revision 4/6/2021