University of California, Santa BarbaraEARTH Earth 4Copy of Earth 4 Lecture Notes UPDATED 2021

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Lecture 1 -​ 1/7/2020 ● Oceanography​, marine science, study of the ocean ● Science related to observations of: ○ Ocean ○ Coasts ○ Marine organisms ● Interdisciplinary​, biolog... y, chem, geology, physics, engineering, etc ● ⅔ of earth is covered in oceans ○ High heat capacity, determine the planet's climate and weather ○ Food source, huge % of the population lives by the coast ■ Sea level rise implications? ● Study vs. Knowledge ○ The seas- important to humans for millennia ○ Transport, food source, destructive force ○ Knowledge was gained from experience ○ Study is intentional, using scientific method ● What is science? ○ Systematic process of asking questions about the observable world ○ Science interprets raw info ○ Scientists ■ Collect ● Scientific method ○ Observations > question ● 1,4, or 5 oceans ○ One global ocean ○ The different oceans, Pacific, Atlantic, Indian, Southern, Arctic ocean ● Ocean or Sea? ○ Commonly used interchangeably ○ Technically, seas are smaller and shallowers which results in some interesting properties ● Early Ocean Exploration​, lots of Mediterranean history ○ Trade records in Mediterranean are earliest record of voyaging ○ 900-700 BC Greeks ventured outside Mediterranean ○ ~450 BC ● Library of Alexandria, Egypt ○ Kept records of every area of human endeavor, began the first systematic study of ocean ○ Eratosthenes of Cyrene was the 2nd librarian ■ First to calculate the circumference of the earth ■ Later incorrectly improved by Ptolmey ■ Invented a system of latitude and longitude ● Longitude and Latitude [Show More]

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