This data set was acquired with a ship-based Kongsberg EM120 Multibeam Sonar system during Nathaniel B. Palmer expedition NBP0602A conducted in 2006 (Chief Scientist: Dr. John Anderson). These data files are of NetCDF Grid format and include gridded Swath Bathymetry data and were processed after data collection. Data were acquired as part of the project(s): Shallow Drilling on the Antarctic Continential Margin (SHALDRIL), and funding was provided by NSF grant(s): ANT01-25480, ANT01-25526, ANT01-25562, and ANT01-25922.