Acoustic techniques such as swath-bathymetry and derived backscatter allow seafloor geomorphological studies depicting recent and active geological processes. They provide information on presence of fluid seepage structures such as mud volcanoes and pockmarks and the occurrence and extension of near-surface faults or areal coverage of submarine landslides. Multibeam bathymetry-derived backscatter is also important to understand lateral variability in sediment composition and provides additional clues on sedimentary/diagenetic processes such as the presence of carbonate crusts. Multibeam systems also collect water column imaging data, which allow to visualize scatters in the water column such as gas bubbles. These data inform the location of active gas seepage from the seafloor into the water column.

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