History of Oceanography Mark/ Reagan Pinales/ Carrasco 3rd Period

Timeline created by mark_pinales in Science and Technology
Event Date: Event Title: Event Description:
Ptolemy 150 B.C. Ptolemy introduces latitude and longitude to the world map; he was the first to place a grid system on a map and use the same grid system for the entire planet.
Erestothenes 240 B.C. Erestothenes determines the surface of the earth
Pytheas 325 B.C. Discovers arctic ocean
Jan 4th, 1350
Ferdinand Magellan the Portuguese navigator. Magellan was the first European explorer to cross the Pacific Ocean and the first to sail around the world.
History franklin1 Benjamin Franklin discovers Gulf stream He contributed to oceanography in the mid- to late 1700s by making and compiling good observations of ocean currents off the US East Coast.
Sonar swath top Sonar Echo sounders were first used for oceanographic studies during the epic German expedition exploring the South Atlantic in the mid-1920s aboard the Meteor.
Darwin CHarles Darwin Darwin publishes The Structure and Distribution of Coral Reefs, in which he suggests that coral atolls are the final stage in the subsidence and erosion of volcanic islands
Maury American naval officer and oceanographer Matthew Maury Wrote the first textbook on Modern Oceanography
Sir Sir William Thomson Sir William Thomson invents an operational wireline sounding machine. Modifications of this machine ultimately replace hemp-rope sounding methods. The wireline machines are faster to operate and significantly more accurate.
215px jacques yves cousteau Jacques Cousteau Cousteau traveled to Canada to make two films on the Saint Lawrence River and the Great Lakes
240px wcs beebe barton 600 Bathysphere A bathysphere is a spherical deep-sea submersible which is unpowered and is lowered into the ocean on a cable.
Timespan Dates: Timespan Title: Timespan Description:
Jan 4th, 1420

Jan 4th, 1446
Henry The Navigator Sent explorers to find new lands, people, and wealth

James Cook James Cook contributed to oceanography by helping find many known islands, such as Hawaii,the Cook Islands,and many more.

Challenger Expedition They conducted 492 deep sea soundings, 133 bottom dredges, 151 open water trawls, 263 serial water temperature observations, and discovered about 4,700 new species of marine life.

FIrst modern bathymetric map Accurate, high-density soundings taken by the Coast Survey Steamer Blake in the Gulf of Mexico and Caribbean Sea lead to the first modern bathymetric map.