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Comparison of Echo Sounders: Single Beam vs. Multibeam for Seafloor Imaging

This graphic illustrates the use of echo sounders in marine exploration. The boat in blue employs an echo sounder to map the ocean floor. On the left, a single beam echo sounder creates a circular image of the seafloor, while the multibeam echo sounder on the right captures a larger area, depicted by the red lines. These technologies, essential for seafloor mapping, allow for detailed underwater exploration and study. Images are provided courtesy of NOAA Ocean Explorer and experts from the Geological Survey of Canada.

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Comparison of Echo Sounders: Single Beam vs. Multibeam for Seafloor Imaging

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  1. http://www.dosits.org/gallery/tech/osf/es1.htm

  2. in each picture, the boat (in blue) is using an echo sounder to image the ocean floor. On the left is a single beam echo sounder, which only images a circle of the seafloor (in red). On the right is a multibeam echo sounder that observes a much larger portion of the seafloor (line in red). Photo Courtesy of NOAA Ocean Explorer. http://www.dosits.org/gallery/tech/osf/es1.htm

  3. http://www.dosits.org/gallery/tech/osf/es1.htm Multibeam bathymetric image of western Browns Bank, western Scotian Shelf. Photo Courtesy of Gordon Fader, Geological Survey of Canada (Atlantic) and the Canadian Hydrographic Service.

  4. Seafloor Mapping - Sidescan Sonar http://woodshole.er.usgs.gov/operations/sfmapping/hydrophone.htm

  5. http://woodshole.er.usgs.gov/operations/sfmapping/hydrophone.htmhttp://woodshole.er.usgs.gov/operations/sfmapping/hydrophone.htm

  6. Seismic Reflection Profiles Fig. 3.3a

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