This data set was acquired with a Sea-Bird SBE-9 CTD during Nathaniel B. Palmer expedition NBP0409 conducted in 2004 (Chief Scientist: Dr. Ronald Kiene). These data files are of SEASOFT format and include Visible Radiation, Fluorescence, Turbidity, Oxygen, Pressure, Temperature, and Conductivity data and were processed after data collection. Data were acquired as part of the project(s): Impact of solar radiation and nutrients on biogeochemical cycling of DMSP and DMS in the Ross Sea, and funding was provided by NSF grant(s): OPP02-30497 and OPP02-30499.