20230808 16554600 1.0 TRUE Backscatter - Witts Rock 2017 Seafloor reflectivity intensity data from multibeam data and mosaiked by multibeam transmitter number, sonar frequenct, and sonar pulse type at a 50cm resolution. Data collected usinga Kongsberg EM2040 multibeam echo sounder operating at 300 kHz.MDC note: This raster was created by combining the 62 backscatter rasters supplied by NIWA into one large raster and extracting the Witts Rock area. NIWA