This data set was acquired with a CTD during R/V Nathaniel B. Palmer expedition NBP1503 conducted in 2015 (Chief Scientist: Dr. Frank O. Nitsche, Investigator: Dr. Frank O. Nitsche). These data files are of Sea-Bird CTD format and include Conductivity, Oxygen, Pressure and Temperature data that have not been processed. Data were acquired as part of the project(s): Vulnerability of East Antarctic Ice Streams to warm Ocean Water Incursions. Funding was provided by NSF award(s): PLR12-45879.