Modern Ocean Research- Submersibles

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Presentation transcript:

Modern Ocean Research- Submersibles Lesson 1.2: Modern Ocean Research- Submersibles

Learning Goals: I can describe the major advancements of research in oceanography over time. I can compare & contrast the 3 different types of marine submersibles.

Ocean Explosion Inventions during the 1900’s: Steal/iron ships with engines Echo sounding mapping Submersibles Self- contained diving ROV’s/AUV’s Electronic navigation & Satellites

Ocean Explosion The German Meteor (1925) Primary accomplishment was mapping the Atlantic ocean floor using echo sounding technology (Crossed the Atlantic ocean 14 times in 2 years)

Ocean Explosion U.S. Atlantis (1931) Confirmed the existence of a mid-ocean ridge = underwater mountain chain (NASA named a shuttle after its accomplishments!)

Ocean Explosion HMS Challenger II (1951) Used echo sounding to map the depth of the Pacific & Indian Oceans Discovered the deepest part of the ocean in the Mariana’s Trench 10,914 meters / ~7 miles

Submersibles Bathysphere (1932) William Beebe & Otis Barton Steel ball with a window Oxygen circulating system Attached to a cable from a ship Only went up & down

Submersibles Bathyscaphe Similar to bathysphere, but not attached to a ship Instead has a float that contains a liquid that is buoyant in water (ex. gasoline), & heavy ballast water to move up and down Small motor to move side to side (though very limited)

Bathyscaphes Trieste 1960 The one and only time the Challenger Deep (deepest part of the ocean in the Mariana’s Trench) was ever visited by man**** Claim to have seen a fish, jellyfish, and shrimp

Submersibles Bathyscaphe

Submersibles Deep Diving Submarine Large variety of shapes & sizes Move both vertically & horizontally Some have robotic arms to grasp samples or perform experiments outside the submersible Most current & technologically advanced

Submersibles Deep Diving Submarine ***UNTIL NOW! James Cameron 2012 Updates since the Trieste: Color pictures & videos Collected samples