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PHY 118 final study guide -chapter 14&15

PHY 118 final study guide -chapter 14&15 - PHY 118...

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PHY 118 Final Study Guide: Chapter 14/15 I. Climate System: Involves the exchanges of energy and moisture that occur among the five spheres a. Includes: atmosphere, hydrosphere, solid Earth, biosphere, and cryosphere (ice and snow on earth’s surface) b. Changes to the climate system to not occur in isolation, but in unison II. How is Climate Change Detected: a. Paleoclimatology - Scientists who reconstruct Earth’s past using proxy data (indirect evidence) from natural recorders of climate such as: seafloor sediment, glacial ice, fossil pollen, and tree-growth rings; Goal = To understand the climate of the past in order to assess the current and potential future climate in the context of natural climate variability b. Most seafloor sediments contain the remains of organisms that once lived near the surface; the numbers and types of organisms living near the surface change with the climate c. Oxygen Isotope Analysis – Based on the precise measurement of the ratio between
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