This data set was acquired with a Sippican MK21 XBT Expendable Probe during Nathaniel B. Palmer expedition NBP0505 conducted in 2005 (Chief Scientist: Dr. John Anderson; Investigator(s): Dr. Bernard Hallet). These data files are of ASCII:MBSystemSVP format and include Sound Velocity data that have not been processed. Data were acquired as part of the project(s): Collaborative Research: Controls on Sediment Yields from Tidewater Glaciers from Patagonia to Antarctica, and funding was provided by NSF grant(s): OPP03-38137 and OPP03-38371.