This data set was acquired with a ship-based Kongsberg EM120 Multibeam Sonar system during Nathaniel B. Palmer expedition NBP0607C conducted in 2006 (Chief Scientist: Dr. Joann Stock). These data files include Bathymetry images that have not been processed. Data were acquired as part of the project(s): Multichannel Seismic Sea Trials, and funding was provided by NSF grant(s): ANT03-38317 and OPP03-38346.