Introduction To Oceanography 2i3f2w

INTRODUCTION TO OCEANOGRAPHY

Introduction to Oceanography What is Oceanography?

Oceanus = ocean graphos = the description of Oceanography = the description of the ocean Originally accurate, but now much more… Oceanus = ocean logos = the study of Oceanology = the science of the ocean

Introduction to Oceanography What is Oceanography? “Oceanography is not so much a science as a collection of scientists who find common cause in trying to understand the complex nature of the ocean. In the vast salty seas that encom the earth, there is plenty of room for persons trained in physics, chemistry, biology, geology and engineering to practice their specialties. Thus, an oceanographer is any scientifically trained person who spends much of his (or her) career on ocean problems. Willard Bascom (1980)

Introduction to Oceanography Oceanography (marine science) is truly an interdisciplinary science

Introduction to Oceanography

The Scientific Method

Introduction to Oceanography Some additional confusion of : Oceans vs. seas? • seawater • seashore • sailing the seven seas

Introduction to Oceanography Some additional confusion of : Oceans vs. ocean?

Introduction to Oceanography

OCEANS - SOME STATISTICS • • • • • •

Area : 3.61 x 109 sq. km. Mass : 141 x 1018 tons Volume : 1.37 x 109 cubic km Average Depth : 3790 meters Average Temperature : 3.9o C Average Salinity : 34.48 parts per thousand

OCEANS - SOME FACTS • Bottom of Mariana Trench is the Deepest spot in Oceans (11022 m deep) • Hawaii island is Earth’s Highest mountain (10,203 m above ocean bottom) • Northern hemisphere has 60% seas whereas Southern hemisphere has 80.9% seas.

Introduction to Oceanography Some ocean factoids: Oceans cover 70.8% of earth’ surface Size Atlantic - 33,429,000 mi2 (29.4% of ocean) Pacific - 64,186,300 mi2 (50%) Indian - 28,350,500 mi2 (20.6%) Arctic - 5,105,700 mi2 Average Depth Atlantic – 12,612 ft Pacific - 12,927 ft Indian - 12,598 ft Arctic - 3,665 ft

Introduction to Oceanography

Introduction to Oceanography So why, living here in Durango, should we care?

Introduction to Oceanography

Introduction to Oceanography

Introduction to Oceanography

Introduction to Oceanography

Introduction to Oceanography