This data set was acquired with a ship-based Navigation system during Nathaniel B. Palmer expedition NBP9709 conducted in 1997 (Chief Scientist: Dr. Robert Dunbar). These data files are of SHP format and include Primary Navigation data and were processed after data collection. Data were acquired as part of the project(s): ROAVERRS (Research on Ocean-Atmosphere Variability & Ecosystem Response in the Ross Sea), and funding was provided by NSF grant(s): OPP98-96356.