The sea floor is mapped using echolocation?⤵️
✍• Yes, Mapping the Ocean Floor with Echo Sounding echo sounding is the key method scientists use to map the seafloor today. The technique, first used by German scientists in the early 20th century, uses sound waves bounced off the ocean bottom.
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Other question and answer:
• How does sonar map the ocean floor? ⤵️
✍• Here's how it works. Multibeam sonar signals are sent out from the ship. With about 1500 sonar soundings sent out per second, multibeam “paints” the seafloor in a fanlike pattern. This creates a detailed “sound map” that shows ocean depth, bottom type, and topographic features.
