Mapping and navigating on the ocean is a bit different to working on land. It is hard to see below the surface. So, ocean mappers need to use a system called sonar (Sound Navigation and Ranging). Sound waves are transmitted from the ship and reflect off the seafloor. Animals also use sonar to navigate and detect prey. This is known as biosonar.
To demonstrate your ability to navigate and map using sound, you will need to apply the principles of sonar. Can you navigate close to unseen objects without crashing into them? Using a jar lid as your sonar tool, you will need to navigate to within 1cm of a wall without knocking into
Experiment with the frequency of your clicking. Does how often you click help you navigate more effectively?
Change the position of your thumbs to alter the pitch of your clicks. How does this affect your navigation skills?
Part of:XL Catlin Oceans Education
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