This data set was acquired with a ship-based Knudsen 320BR Subbottom Seismic system during Nathaniel B. Palmer expedition NBP1103 conducted in 2011 (Chief Scientist: Dr. Laura Robinson). These data files are of SEGY format and include Active Subbottom Seismic shot data that have not been processed. Data were acquired as part of the project(s): Collaborative Research: Historic Perspectives on Climate and Biogeography from Deep-Sea Corals in the Drake Passage, and funding was provided by NSF grant(s): ANT09-44474.