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GEO/OC 103 Exploring the Deep …. Today’s Tune “ Pirates of the Caribbean”. Registration Problems? Please see... Melinda Jensen Geosciences Departmental Office 104 Wilkinson Hall melinda.jensen@oregonstate.edu 737-1238.
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GEO/OC 103 Exploring the Deep … . Today\'s Tune " Pirates of the Caribbean"

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Registration Problems? If it\'s not too much trouble see... Melinda Jensen Geosciences Departmental Office 104 Wilkinson Hall melinda.jensen@oregonstate.edu 737-1238

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At it\'s surface the sea is in steady movement with intense streams that extend for a large number of miles and towering waves. Underneath the sea\'s surface lie concealed mountain ranges, inconceivable trenches countless feet profound, massive hot springs, and gigantic volcanoes retching liquid shake in monstrous emissions." "Earth is a one of a kind planet, conceivably one of only a handful few in the universe that has water. Almost 71% of it\'s surface is sea. From space, Earth is splendidly blue, white in spots with mists and ice, at times twirling with tempests. "Water World" - T. Battalion

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Chapter 1

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"Simply the Facts… " Over 97% of the water on the Earth is in the sea. The normal profundity of the sea is around 4000 meters . The Mariana Trench is 11,022 m profound, the most profound spot on the planet. 8 tons for each sq. in. Mt. Everest is "just" ~8667 m above ocean level

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"Simply the Facts… " Mauna Kea on the Big Island of Hawaii, measures ~10,600 m from the sea depths, making it the tallest mountain on the planet (outperforming even Mt. Everest). On the off chance that the Earth\'s territory surface was leveled to a smooth ball, the sea would cover it to a profundity of 2686 m.

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"Simply the Facts… " The sea contains somewhere in the range of 5 trillion tons of salts If dried and spread equally, that mass would cover the whole planet to a profundity of 45 m. On a planetary scale the sea is irrelevant. Its normal profundity is a small division of the Earth\'s range.

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Why Study the Ocean? Real impact on climate and atmosphere Source of sustenance, vitality, restorative medications Transportation Military centrality Recreational asset Major impact on the strength of the planet Culture and history

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Historical Review of Oceanography Roots followed to sea investigation . Depicting the seas

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Historical Review of Oceanography The eighteenth century was set apart by Improvements in route and mapping Accumulation of information for diagrams Temperature, ebbs and flows

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Historical Review of Oceanography (Cont.) In the United States, Benjamin Franklin (1769-1770) distributed the primary outline of the Gulf Stream

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Historical Review of Oceanography (Cont.) In Britain, James Cook (1768-1779) Constructed graphs of coastlines particularly for the South Pacific Secondary disclosure the Hawaiian Islands

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Historical Review of Oceanography (Cont.) In the nineteenth century interest about the seas expanded and voyages for logical reasons for existing were started

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Charles Darwin : British naturalist Voyage of the Beagle (1831-1836), concentrated on geography and science of the South American coastline Developed hypothesis of natural advancement in light of common determination Published On the Origin of the Species (1859) $1200!

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The Voyage of the HMS Beagle Charles Darwin Route of the HMS Beagle

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Historical Review of Oceanography (Cont.) Edward Forbes : British naturalist (1815-1854) Proposed the theory that no life (azoic) existed in the seas underneath 550 m

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Historical Review of Oceanography (Cont.) Matthew Fontaine Maury : U.S. maritime officer Compiled data on winds and streams Published The Physical Geography of the Sea (1855) "Father of physical oceanography"

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Historical Review of Oceanography (Cont.) C. Wyville Thompson: British pilgrim Directed the Challenger Expedition (1872-1876) First major logical endeavor Globe-encompassing voyage Chemical, physical, and natural estimations and accumulations Disproved Edward Forbes "azoic hypothesis" by gathering ocean life from waters as profound as 9000 m

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The Challenger Expedition

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Modern Oceanography Major interdisciplinary campaigns e.g., the Meteor Expedition: German (1925-1927) Bottom geography Vertical profiles of saltiness, temperature, oxygen Subsequent development, World War II, earnest requirement for data on the physical structure of the seas

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What is Oceanography Today?

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Geological Oceanography (Marine Geology) Study of rocks and silt & forms in charge of their arrangement.

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Marine Geophysics Study of shake structure in the sea bowl, properties of rocks, for example, attraction, event of quakes.

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Dec 26, 2004 9.0 Eq, Sumatra 275,950 executed Image civility of BBC

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March 28, 2005 8.7 Eq, Sumatra 290 slaughtered Image politeness of USGS

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Physical Oceanography How and why sea streams stream, air-ocean collaborations, for example, the era of waves by the wind.

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Chemical Oceanography Composition of ocean water and the procedures controlling and changing its piece, including marine contamination .

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Biological Oceanography (Marine Biology) Organisms that live in the seas and their connections to the earth.

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Ocean Engineering Design and establishment of oceanographic instrumentation and vehicles

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Modern Oceanography (Cont.) Today sea research is directed by agents in specific marine organizations, and colleges, and state and government offices The accentuation is on interdisciplinary, prepare arranged research and global participation

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1903 www.sio.ucsd.edu 1930 www.whoi.edu 1949 www.ldeo.columbia.edu

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Woods Hole Oceanographic Institution Woods Hole, MA Scripps Institution of Oceanography UC-San Diego

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Current and Future Oceanographic Research more noteworthy concentrate on worldwide endeavors and substantial scale interdisciplinary campaigns Many researchers Many boats "remote detecting" "unmanned" stages

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New Technology for Probing the Sea

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TOPEX/Poseidon satellite propelled in 1992. Seasat-A, the main oceanographic satellite, was propelled in 1978.

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Summary: What is Oceanography? Wide science concentrated on the seas Geology/geophysics, science, material science, science, designing Highly interdisciplinary Also profoundly collective We are as yet investigating (!) yet … Feeds additionally into sea arrangement, administration, and protection

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