This data set was acquired with a ship-based Fluorometer, Kongsberg EM120 Multibeam Sonar system, Thermosalinograph, Meteorological Sensor, and Navigation system during Nathaniel B. Palmer expedition NBP0601A conducted in 2006 (Chief Scientist: Dr. Walker Smith). These data files are of JGOFS format and include Salinity, Bathymetry, Temperature, Fluorescence, Visible Radiation, Infrared Radiation, Meteorological, and Conductivity data. This data set was created from calibrated data decimated at 1-minute intervals. Several fields are derived measurements from more than a single raw input. Data were acquired as part of the project(s): Interannual variability in the Antarctic - Ross Sea (IVARS): Nutrients, and funding was provided by NSF grant(s): ANT00-87401.