Page 17 - Oceans

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lighT TemperaTure

depTh
68˚F (20˚C)
pressure
Nuclear submarine 41˚F (5˚C) Scuba diver at a
cannot withstand the maximum depth of
20
pressures in the atm 650 ft (200 m) 50 m (164 ft)
deep ocean
< probing The deep
Human divers cannot dive
36–39˚F
(2–4˚C) very deep without special
100 3,300 ft (1,000 m) pressure-proof suits. Pressurized
atm
Great white shark submersibles can venture much
can dive much deeper deeper, but each has its limits.
than a submarine Remotely operated vehicles
(ROVs) will soon be able to
6,500 ft (2,000 m) penetrate deep ocean trenches,
400
Gulper eel, like atm and engineers are working on
many other fish, is manned vehicles with the
not affected by same capabilities.
intense pressure
Deep Flight I
uses aircraft 10,000 ft (3,000 m)
technology to
“fly” underwater
Alvin has a depth
36–39˚F
limit of 14,746 ft
13,000 ft (4,000 m) (4,500 m)
(2-4˚C)
ocean
depths
16,500 ft (5,000 m)

36–39˚F
Shinkai 6500 has (2-4˚C)
dived to 21,447 ft 600 20,000 ft (6,000 m)
(6,537 m) atm

COMRA vehicle is 23,000 ft (7,000 m)
designed to reach
23,000 ft (7,000 m)
26,000 ft (8,000 m)

This Hybrid ROV 30,000 ft (9,000 m)
will operate at ≤ remoTe conTrol
extreme depths A lot of deep-ocean exploration is
now achieved using remotely operated
vehicles (ROVs), with video links to the
33,000 ft (10,000 m) surface or to manned submersibles.
For many applications—especially
1,000
atm
hazardous situations—ROVs such
Deep Flight II as the Global Explorer (shown above)
is still at the are better than manned craft. They
design stage are ideal for investigating cavities
such as inside wrecks and caves,
or beneath the polar ice.