This data set was acquired with a Satellite during Nathaniel B. Palmer expedition NBP0401 conducted in 2004 (Chief Scientist: Dr. Terry Wilson). 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): Neotectonic Structure of Terror Rift, Western Ross Sea, and funding was provided by NSF grant(s): OPP01-25624 and ANT01-26279.