NOAA Bathymetric Data Viewer: Seafloor depth and bathymetry surveys from NOAA. OpenTopoMap: Free topographic map of the world from OpenStreetMap and elevation data.
| NOAA Bathymetric Data Viewer | OpenTopoMap | |
|---|---|---|
| Category | Geology, Terrain & Ocean Floor | Hiking, Ski & Outdoor Maps |
| Coverage | Worldwide oceans | Worldwide |
| Updates | Periodically | Continuously (community edits) |
| Data source | NOAA NCEI and global bathymetry | OpenStreetMap and SRTM elevation |
| Made by | NOAA NCEI | OpenTopoMap contributors |
| Price | Free | Free |
| Account | No account needed | No account needed |
| On phones | Best on a computer | Works well on phones |
| Map view | Flat map | Flat map |
| Visits from ColorfulMaps | 0 | 0 |
| Open map | Open map |
What you can do with NOAA Bathymetric Data Viewer
- Seafloor depth layers
- Survey footprints
- Data download
What you can do with OpenTopoMap
- Contours and hill shading worldwide
- Paths and huts from OSM
- Free to use
Summary based on public information. Check each map's website for current features and prices.