U.S. Geological Survey Open-File Report 2011-1184
High-Resolution Geophysical Data From the Sea Floor Surrounding the Western Elizabeth Islands, Massachusetts
Figure 4. U.S. Geological Survey research vessel Rafael showing the configuration of acquisition equipment. The RTK GPS antennae and the swath interferometric sonar head are located off the bow, and the Klein 3000 sonar system and the Edgetech 424 bottom profiler are deployed from the port and starboard sides, respectively. Photograph by Dave Foster.