This data set was acquired with a ship-based SeaBeam 2112 Multibeam Sonar system during Nathaniel B. Palmer expedition NBP9805 conducted in 1998 (Investigator(s): Dr. Dave Leger). These data files are of MBSystem Compatible format and include Acoustic Backscatter, Swath Bathymetry, and Sidescan data that have not been processed. Data were acquired while R/V Nathaniel B. Palmer was in transit.