This data set was acquired with a CTD during Nathaniel B. Palmer expedition NBP0606 conducted in 2006 (Chief Scientist: Dr. B. Gregory Mitchell). These data files are of Sea-Bird CTD format and include Pressure, Conductivity, and Temperature data that have not been processed. Data were acquired as part of the project: Plankton community structure and iron distribution in the southern Drake Passage and Scotia Sea, and funding was provided by NSF grant: ANT04-44134.