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22 Cards in this Set
- Front
- Back
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Definition of oceanography
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ocean = the marine environment
graphy = name of a descriptive science |
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Oceanography really should be called what?
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oceanology = study of the ocean marine environment
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what are the 4 main disciplines of oceanography?
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Geological oceanography
Chemical oceanography Physical oceanography Biological oceanography |
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Geological oceangraphy is the study of
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the structure of the sea floor and how the sea floor has changed through time; the creation of sea floor features; and the history of sidements deposited on it.
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Chemical oceanography is the study of
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the chemical composition and properties of seawater; how to extract certain chemical from seawater; and the effects of pollutants
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Physical oceanography is the study of
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waves, tides, and currents. the ocean-atomposhere relationship that influences weather and climate; and the transmission of light and sound in the ocean
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Biological oceanography is the study of
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various oceanic life forms and their relationships to one another; adaptations to the marine environment, and developing sustainable methods of harvesting seafood
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How much is the Earth covered by water?
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70.2% is what?
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Oceanography is an Interdisciplenary Science comprised of:
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astronomy
geology geography biology chemistry physics |
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How many oceans exist on Earth?
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Technically one since it is a continous body of seawater. But it is separated into 4 principal oceans plus 1
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What are the 4 principal oceans plus 1?
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Pacific -largest and deepest
Atlantic - 1/2 size fo Pacific not quite as deep as Pacific Indian - slightly smaller than the Atlantic, same average depth Arctic - 7% size of Pacific, 1/4 deep as teh rest of the oceans PLUS one is Southern Ocean or Antaractic Ocean - really this is the convergence of where the currents meet, |
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Why is sea different to ocean?
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Sea is smaller and shallower
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Name the 7 seas that were termed in the 15th Century
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Red Sea
Medterranean Sea Perian Gulf black Sea Adriatic Sea Caspian Sea Indian Ocean |
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What are the seas of today?
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1. North Pacific
2. South Pacific (equator is the divider) 3. North Atlantic 4. South Atlantic 5. Indian 6. Arctic 7. Southern Antaractic |
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The deepest pat of the ocean is the ___________ __________. It is _________ meters deep adn was visited by humans in 19__ in a specially designed deep-diving ___________.
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Mariana Trench
11,022 meters (36,161 feet) 1960 first visited in a deep-diving bathysphere |
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Average ocean depth of the Pacific Ocean is:
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3940 meters (12,927 feet)
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Average ocean depth of the Atlantic Ocean is:
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3844 meters (12,612 feet)
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Average ocean depth of the Indian Ocean is
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3840 meters (12598 feet)
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Average ocean depth of the Arctic Ocean is:
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1117 meters (3665 feet)
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Percentage that the oceans make up
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Pacific 50.1%
Atlantic 26.0% Indian 20.5% Artic 3.4 % |
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What is the Trieste?
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US Navys bathscaphe that went to the Mariana Trench in 1960. Had steel walls 7.6 cm (3 inches) thick
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What does bathyscaphe mean?
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bathos = depth
scaphe = small ship |
