This data set was acquired with a Meteorological Sensor, Echosounder, Thermosalinograph, Navigation System and Fluorometer during R/V Nathaniel B. Palmer expedition NBP1502 conducted in 2015 (Chief Scientist: Dr. Philip Bart, Investigators: Dr. Philip Bart, Dr. John Anderson). These data files are of JGOFS (ASCII) format and include Bathymetry, Conductivity, Fluorescence, Infrared Radiation, Meteorological, Navigation, Salinity, Temperature and Visible Radiation data that were processed after acquisition. 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): Timing and Duration of the LGM and Post-LGM Grounding Events in Whales Deep Paleo Ice Stream, Eastern Ross Sea Middle Continental Shelf; Evidence for Paleo Ice Stream Collapse in the Western Ross Sea since the Last Glacial Maximum. Funding was provided by NSF award(s): PLR12-46353, PLR12-46357.