This data set was acquired with a ship-based Kongsberg EM120 Multibeam Sonar system during R/V Nathaniel B. Palmer expedition NBP0812 conducted in 2008 (Chief Scientist: Dr. Teresa Chereskin). These data files are of PDF format and include Bathymetry images that have been processed. Data were acquired as part of the project: Dynamics and Transport of the Antarctic Circumpolar Current in Drake Passage, and funding was provided by NSF grant: ANT06-36493.