This data set was acquired with a ship-based Navigation system during Nathaniel B. Palmer expedition NBP9307 conducted in 1993 (Chief Scientist: Dr. Lou Bartek). These data files are of MGDS:Nav format and include Primary Navigation data and were processed after data collection. Data were acquired as part of the project(s): High Resolution Seismic Stratigraphy of the Ross Sea: Implications for Cenozoic Eustatic and Climatic Change, and funding was provided by NSF grant(s): OPP92-20848.