Processed ship-based Multibeam Sonar Data (version 2) acquired at the Juan de Fuca Spreading Center during the Atlantis expedition AT18-09 (2011)

This data set was acquired with a ship-based Kongsberg EM122 Multibeam Sonar system during Atlantis expedition AT18-09 conducted in 2011 (Chief Scientist: Dr. Harlan Johnson). These data files are of MBSystem format and include Sidescan, Acoustic Backscatter, and Swath Bathymetry data and were processed by the GMRT Team using the open source MB-System multibeam sonar processing software as part of the GMRT Synthesis effort. These data are included in the GMRT Synthesis, version 2.4. Data were acquired as part of the project(s): Constraining Sub-surface Fluid Circulation at the RAVEN Hydrothermal Field, Endeavour Ridge.