Bathymetry Hunga Tonga-Hunga Ha’apai volcano
What lies beneath? Revealing the massive Hunga caldera (~ 5 km diameter) below the waterline. 3D model using elevation data from American Geophysical Union and bathymetrics from National Oceanic & Atmospheric Administration. Rendered with Blender.
Original resources
- Bathymetry (source: GEBCO)
- Photogrammetry (source: AGU) DEMs from 2015-01-19 to 2017-09-19
- Bathymetry (source: NOAA): Extract (North/West: -20.45 / -175.5; South/East: -20.7 / -175.25) from bathymetric grid from the NCEI Multibeam Bathymetry Mosaic. The depth values are in meters, stored as 32-bit floating point values. The cell size is 3 arcseconds (approx. 90m).
Exploring interactive 3D-model
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Original HD animation