Multibeam bathymetry processed data (Kongsberg EM 122 working area dataset) of RV MARIA S. MERIAN during cruise MSM86

The hydroacoustic surveys carried out during MARIA S. MERIAN cruise MSM86 were aimed to acquire detailed information of the areas of interest (Boyd Seamount; Logi Ridge; Vesteris; Vestnesa Ridge) with respect to backscatter and bathymetry. During MARIA S. MERIAN cruise MSM86, the Kongsberg EM 122 multibeam echosounder was operating almost continuously. Hydroacoustic surveys were usually conducted with a vessel speed of maximum 6 kn, while for some few sub-bottom profiles, a reduced speed of about 4 kn was applied. During transits the vessel speed was increased to 8-12 kn, depending on weather conditions. Sound velocity profiles were uploaded into the recording system online. Data has been processed according to the MB-System standard processing sequence