Processed ship-based Multibeam Sonar Data (version 2) acquired in the northern Pacific Ocean during the Marcus G. Langseth expedition MGL0909 (2009)

This data set was acquired with a ship-based Kongsberg EM122 Multibeam Sonar system during Marcus G. Langseth expedition MGL0909 conducted in 2009 (Chief Scientist: Dr. Ted Koczynski). These data files are of MBSystem format and include Sidescan, Acoustic Backscatter, and Swath Bathymetry data and were processed by the GMRT Team using the open source MB-System multibeam sonar processing software as part of the GMRT Synthesis effort. These data are included in the GMRT Synthesis, version 2.0. Data were acquired while the Marcus G. Langseth was in transit.