The Growth of Oceanography Why study oceanography Scientific

The Growth of Oceanography

Why study oceanography? • Scientific Curiosity – How do oceans operate and interact • • with entire earth system? Need for Marine Resources – We need both food and mineral resources from oceans to survive. Impact on Human activities – Must maintain a balance between nature and human activities to protect the coastal zones, prevent over polluting, ensure safe transportation/recreation on the world’s oceans and better prepare for natural hazards.

Historical Review of Oceanography There are three major stages in the history of ocean research: 1. Ocean exploration was the period when people explored the ocean boundaries.

Notable explorers include: • Phoenicians - explored the eastern Atlantic Ocean reaching England sailing around Africa.

Notable explorers include: • The Greek Pytheas circumnavigated England reached Iceland

Notable explorers include: • The Polynesians- sailed and explored the western Pacific Ocean in log rafts.

Notable explorers include: • Herodotus- prepared a world map in 450 BC illustrating three continents surrounded by a vast ocean.

Herodotus (450 B. C. ) (recreation) Shows the extent of understanding of world geography Map compiled by Herodotus

Notable explorers include: • The Vikings- dominated marine exploration during the Middle Ages reaching North America.

Notable explorers include: • Bartholomew Diaz- reached the southern tip of Africa in an attempt to reach India in 1480 s.

Notable explorers include: • Vasco de Gama- reached India in 1498 by sailing around Africa.

Notable explorers include: • An expedition led by Ferdinand Magellan, and continued after his death by Juan Sebastian Elcano, circumnavigated the globe from 1519 to 1522.

• Early Explorers Video

2. Early scientific investigations began when people began to describe the ocean.

Notable explorers include: • James Cook In his ships the Endeavour, Resolution, & Discovery, made three voyages in the late 1700’s; these voyages: -Visited Tahiti -Charted New Zealand -Mapped the Great Barrier Reef -Circumnavigated the Globe at high southerly latitudes (71 o. S) -“Discovered” Hawaii

Notable explorers include: • John Harrison: in 1728 invented the chronometer, a clock that was spring driven, thus could work at sea and be used to determine longitude

Notable explorers include: • Matthew Fountaine Maury- published The Physical Geography of the Sea in 1855 and became known as the father of physical oceanography. He was also born in Virginia!

The Voyage of the HMS Beagle Charles Darwin was a naturalist aboard a 4 1/2 year voyage that began in 1831 and later led to Darwin’s book “Origin of Species”

3. Modern oceanography Began in the twentieth century with interdisciplinary oceanic research and use of complex scientific instruments.

HMS Challenger • HMS Challenger 1872, first purely scientific sailing • • • expedition; 4 year voyage discovered 4, 717 new species Took global ocean salinity, temperature, and water density measurements The “Challenger Report”, a 50 volume set documenting the findings of the Challenger expedition provided the foundation for modern oceanographic study

Early Scientific Exploration • In the 1920 s the German vessel SMS Meteor studied the salinity, temperature, oxygen content, and sea floor topography of the South Atlantic.

Current Research • Major institutions were established. In the U. S. these include: Scripps Institute of Oceanography, Woods Hole Oceanographic Institute, and Lamont Doherty Geological Observatory. • NOAA (National Oceanic and Atmospheric Administration) founded in 1970, government branch that conducts oceanography research and weather monitoring.

Phoenician Boat Mission

Timeline • Please make a timeline (with at least 10 pictures) from the chart in your books, use the following years: (read across! ) Ø 4000 BC Ø 450 BC Ø AD 982 Ø 1513 Ø 1769 -1770 Ø 1855 Ø 1873 Ø 1893 Ø 1925 -1927 Ø 1959 -1965 2000 -500 BC 325 BC AD 995 1519 -1522 1768 -1779 1868 -1870 1884 -1901 1903 1930 1970’s 1000 -600 BC AD 150 1492 1569 1831 -1836 1872 -1876 1888 1912 1949 1998

So You Think You Can Explore? • In 6 groups, you will be given a card describing an explorer or peoples. • Using the kit given to you, you must create a skit (about 2 minutes long) that describes what is on your card. • Make sure you include who your card is about, where they explored, how they did it and what time period they were active in.

Phoenicians: – Explored eastern Atlantic reaching England sailing around Africa – Stuck to shoreline – Great boat builders! Vikings: Pytheas the Greek: – Also called Norsemen – Used longships to sail the oceans – Got as far west as Russia and Constantinople and as far east as Greenland Newfoundland (Canada) – First N. American settlement by Leif Eriksson – Sailed around England reached Iceland – Found ice around the Arctic and brought back Celtic culture to Europe – Took many notes about his journey

Bartholomew Diaz: – Portuguese knight who tried to find a sea route to India – Got as far as southern tip of Africa – Claimed the “Cape of Good Hope” for Portugal. Ferdinand Magellan: – Led first mission to circumnavigate (sail around) the world from 1519 -1522 – Died before end, finished by Juan Sebastian Elcano – First to cross Pacific Ocean, named after “peaceful sea” – Brought back enormous amounts of spices, worth a fortune in his time.

James Cook: – Explorer and Cartographer, late 1700 s – Made 3 voyages to the Pacific where he made contact with Australia, New Zealand, and Hawaii. – Kept many journals, which were published and widely read as entertainment. – Witnessed many native rituals and ceremonies previously unknown.

Explorers Quiz – Next class Summarize the achievements of the following: James Cook Pytheas the Greek Bartholomew Diaz The Vikings Polynesians Juan Sebastian Elcano Charles Darwin SMS Meteor HMS Challenger M. F. Maury Phoenicians John Harrison