This data set was acquired with a ship-based Kongsberg EM120 Multibeam Sonar system during Nathaniel B. Palmer expedition NBP0501B conducted in 2005 (Chief Scientist: Dr. Alisa Miller; Investigator(s): Dr. Steve Cande and Dr. Joann Stock). These data files are of NetCDF Grid format and include gridded Bathymetry data and were processed after data collection. Data were acquired as part of the project(s): Late Cretaceous and Cenozoic Reconstructions of the Southwest Pacific, and funding was provided by NSF grant(s): OPP01-26334, OPP01-26340, and ANT03-38317.