Processed ship-based Multibeam Sonar Data (version 2) from the East Pacific Rise (EPR) Spreading Center at Segment 9N acquired during the Atlantis expedition AT18-12 (2011)

This data set was acquired with a ship-based Kongsberg EM122 Multibeam Sonar system during Atlantis expedition AT18-12 conducted in 2011 (Chief Scientist: Dr. Scott Nooner). 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): Recover bottom pressure recorders (BPRs), and funding was provided by NSF grant(s): OCE04-26575 and OCE06-47840.