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Ocean Floor Exploration

Ocean Floor Exploration. HMS Challenger (1872-1876). The old method of data collection to map the ocean floor used lead weights and rope. SONAR (Echo Sounder). SO und N avigation A nd R anging Began use in 1925 Helped submarines in WWII. Satellites.

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Ocean Floor Exploration

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  1. Ocean Floor Exploration

  2. HMS Challenger (1872-1876) • The old method of data collection to map the ocean floor used lead weights and rope.

  3. SONAR (Echo Sounder) • SOund Navigation And Ranging • Began use in 1925 • Helped submarines in WWII

  4. Satellites • In the 1970s, orbiting satellites began to collect ocean data • This method proved to be much faster

  5. Satellite Coverage in 10 Days

  6. Seasat • launched in 1978 • measures direction & speed of ocean currents

  7. Geosat(used to map sea floor)

  8. Underwater Submersibles • Ex. of piloted vessels: The Alvin and Deep Flight • Ex. of robotic vessels: JASON II and Medea (both are tethered together)

  9. Jason II (ocean floor) Medea (ocean surface)

  10. The Alvin

  11. Deep Flight Submersible **Actually classified as an underwater airplane.

  12. Ocean Floor Features

  13. Ocean Floor Features

  14. Active Continental Margin

  15. Passive Continental Margin

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