This data set was acquired with a RSS F13 Microwave Satellite during Nathaniel B. Palmer expedition NBP0601 conducted in 2005 (Chief Scientist: Dr. Giacomo DiTullio). These data files are of GIF (Image) format and include Ice Concentration images that have not been processed. Data were acquired as part of the project(s): Interaction of iron, light and CO2 on phytoplankton community dynamics in the Ross Sea, and funding was provided by NSF grant(s): ANT03-38097, ANT03-38157, ANT03-38164, and ANT03-38350.