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SUBMERSIBLES. https://www.youtube.com/watch?v=kSfESqX-E84 With Robert Ballard Deep floor exploration. SHORT HISTORY SUBMERSIBLES. Average depth of ocean is 3,700m. Deepest Scuba dive is about 135m Scuba limitation: cold, pressure REALLY. TIME LINE.
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SUBMERSIBLES • https://www.youtube.com/watch?v=kSfESqX-E84 With Robert Ballard • Deep floor exploration
SHORT HISTORYSUBMERSIBLES • Average depth of ocean is 3,700m. • Deepest Scuba dive is about 135m • Scuba limitation: cold, pressure • REALLY
TIME LINE • 1934 Dr. William Beebe reached a depth of 1000 meters in a steel chamber called a Bathysphere ( fits 2 people).
TIME LINE • 10 min video
In 1960 a Swiss team of Auguste and Jacques Piccard, made the deepest dive in a submersible (bathyscaphe) to the bottom of the Mariana Trench (10,852 meters- 4 hrs.).
cameron's dive in 1 min (2min) • dive to marianna
1964 - Alvin is a submersible that has logged in over 1000 dives. It holds a crew of 3. history of alvin • VENTS
1966- ALVIN recovered hydrogen bomb • Investigates hydrothermal vents • Cool Creature • COOL CREATURES • Submersable discoveries COOL SUBS On 17 March 1966, Alvin was used to locate a submerged 1.45-megaton hydrogen bomb lost in a United States Air Forcemidair accident over Palomares, Spain. The bomb, found resting nearly 910 metres (2,990 ft) deep, was raised intact on 7 April
restructure of alvin to 2013 6 min • 50 years Alvin Part 2 Rebuild • Part 1 • Part 3
REVIEW • Challenger deep in Mariana Trench – deepest part of our ocean 7 miles deep • Found 350km SW of Guam • Navy used explosives to find location of challenger deep – real-time echos to map ocean floor • Beebe logged 40 dives in Bathysophere • Cameron – 2nd man to dive 7 miles (challenger deep) • Deepest scuba dive 1044ft. • Alvin discovered: Hydrogen bomb, Titanic, and Hydrothermal vents • Extremophiles – organisms living under extreme conditions Ex. Tube worms/shrimp by hydrothermal vents
1979 -Dr. Sylvia Earle holds the record for the deepest solo dive- 380 meters. (1246.72ft) in a Jim Suit
New Suit (2 Min) • The JIM suit is an atmospheric diving suit (ADS) • One Man Suit
Dr. Earle Dive (7min) • Dr. Earle and deep sea diving (2 min) • Dr. Earle and exploration 11 min • #Cool creature (sea Pigs) • #Oar fish • ROV 2 min • submersible – whale • If you don't want water (other end of extreme)
Dr. Gallo (17 min) • https://www.youtube.com/watch?v=RofJCrIjo-g
Types of Underwater Vehicles HOV’s – Human operated vehicles (like Alvin) ROV’s – Remote Operated Vehicles • Are tethered to ship AUV’s – Autonomous Underwater vehicles robots pre-programmed to collect data Hybrid Vehicles – combine ROV’s with AUV’s
ROV and sperm whale • sample collection • Dead whale? • Dancer?
Cool eruption • exploring underwater lava
How do Modern Submersibles Explore the Ocean Floor?Eruptiong volcano ROVs – Remote Operated Vehicles
JASON • Robot connected by cables from a surface ship WHAT JASON SEES 35 SEC
Why were scuba divers not used to locate the resting place of the Titanic? 12,500ft
Sonar • Sonar stands for sound navigation and ranging. • Sonar uses a beam of sound waves directed downward • Sound wave will bounce off and return back causing an echo. • Image of bottom or object is created
JAMES CAMERON • Long Way Down 2 min • long way down 3 min
Summary The development of advanced technology, in the form of submersibles, robot vehicles, and sonar equipment has opened up the fields of Marine Biology and Oceanography in a way we could never have imagined!