This data set was acquired with a ship-based Navigation system during Nathaniel B. Palmer expedition NBP0104 conducted in 2001 (Chief Scientist: Dr. Peter Wiebe). These data files are of SHP format and include Primary Navigation data and were processed after data collection. Data were acquired as part of the project(s): SO GLOBEC: Water-column phytoplankton primary productivity, SO GLOBEC: Seabird distribution and abundance, SO GLOBEC: Water-column nutrient analysis, SO GLOBEC: Krill distribution, physiology, and predations; Copepod prey abundance, SO GLOBEC: Mesoscale Circulation, Tides, and Mixing, and SO GLOBEC: Hydrographic modeling, both biological and physical, and funding was provided by NSF grant(s): OPP02-34163, OPP92-07157, ANT99-10007, OPP99-10093, OPP99-10096, ANT99-10098, OPP99-10102, OPP99-10175, OPP99-10263, OPP99-10610, OPP99-11731, and OPP99-40880.