This data set was acquired with a ship-based Navigation system during Roger Revelle expedition RR0901 conducted in 2009 (Chief Scientist: Dr. James Ledwell). These data files are of Text File (ASCII) format and include Navigation data and were processed after data collection. Data were acquired as part of the project(s): DIMES: Diapycnal and Isopycnal Mixing Experiment in the Southern Ocean - Cruise 2, and funding was provided by NSF grant(s): OCE06-22825.