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Into the Abyss
Deep Sea Exploration
Kellen Osbourn
SCM 330 MWF 8:00-9:00am
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Deep Sea Exploration
• Why should we care about what’s at the bottom of the ocean?
• Brief history lesson on the origins of deep sea exploration
• Where we are now (Submersibles)
• Where are we headed?
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Why Study the Deep Sea?
• We live on a “water” planet• <70% of Earth’s surface is
covered by water, 60% is covered by water more than 1 mile in depth
• Deep sea is the largest habitat on Earth
• A large area of the deep sea is unexplored
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History of Deep Sea Exploration
• Investigation of physical, chemical, and biological conditions on the seafloor
• 1872 HMS Challenger expedition launched, more than 4000 new species discovered over 4 years
• Used dredges, scoops, and sounding machines to conduct research
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Where are we now?
• Major advancements in deep sea exploration since beginning of 20th century
• One invention with the biggest impact is the underwater vehicle or submersible
• Come in two flavors – ROV and AUV
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Submersibles
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Remotely Operated VehiclesROVs
• Small unmanned submersible that are attached by a tether to a control center on a ship
• Made with large flotation pack on top of a steel framework, to provide buoyancy
• All are equipped with lights and a camera, some even have instruments that measure water clarity, light penetration and temperature
• Used widely in the oil industry as well as for science purposes
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Autonomous Underwater VehiclesAUVs
• Powered by batteries or fuel cells • Can be either manned or unmanned• Used as a platform for scientific sensors and
can operate at depths and over distances that are impossible for the human diver
• Manned submersibles gives scientists
in-situ access to various ocean depths
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Where are we headed?
• Many important discoveries made with help of submersibles (e.g. Titanic, hydrothermal vents)
• Lots of questions that need to be answered
• On the verge of another huge breakthrough in the field of oceanography
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Thank You