Processed Acoustic Backscatter, Sidescan and Swath Bathymetry Data (EM304) from the Izu-Bonin-Mariana Volcanic Arc, acquired during E/V Nautilus expedition NA179 (2026)

This data set was acquired with a Kongsberg EM304 Multibeam Sonar during E/V Nautilus expedition NA179 conducted in 2026. These data files are of MBSystem-compatible format and include Acoustic Backscatter, Sidescan and Swath Bathymetry data that were processed after acquisition. This data was processed by Ocean Exploration Trust and was included in the Global Multi-Resolution Topography (GMRT) Synthesis (version 4.5.1).