Processed ship-based Multibeam Sonar Data (version 3) acquired in the eastern Pacific Ocean along the Atacama Trench during the Roger Revelle expedition DRFT05RR (2001)

This data set was acquired with a ship-based Kongsberg EM120 Multibeam Sonar system during Roger Revelle expedition DRFT05RR conducted in 2001 (Chief Scientist: Dr. C. David Chadwell). These data files are of MBSystem format and include Swath Bathymetry, Acoustic Backscatter, and Sidescan 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 1.