This data set was acquired with a Sippican MK21 XBT Expendable Probe during Nathaniel B. Palmer expedition NBP0804 conducted in 2008 (Chief Scientist: Dr. Joann Stock). These data files are of Sippican MK21 Export Data File format and include Temperature data that have not been processed. Data were acquired as part of the project(s): Collection of marine geophysical data on transits of the Nathaniel B. Palmer, and funding was provided by NSF grant(s): ANT03-38317.