Sub-bottom Profiling
Full spectrum sub-bottom chirp profiling for determination of seafloor sediment and rock layer thickness.

The SFML operates an EdgeTech SB-424 Full-Spectrum sub-bottom chirp profiler for determination of seafloor sediment and rock layer thickness. The SB-424 has a frequency range of 4-24 KHz, with ±4 cm vertical resolution and a typical penetration ranging from 3 m in calcareous sand, to 40 m in clay. Profile data from the SB-424 are recorded using Triton Imaging Inc. Delph Seismic data acquisition system and processed using Seismic-GIS software.