GEOL 2150 Lecture 96: climate change
30 Nov 2016
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Document Summary
Carbon dioxide and methane concentration in glacial ice (as old as 800,000 years old) Sediment deposits on floodplains or in lakes. Good for testing models and predictions from prehistoric record. Most reliable data from ground measurements that establish the validity of airborne/satellite measurements. Use numerical means to represent real world phenomena and linkages between interactions. Climatic zones: ice cap, arctic, continental subarctic, marine west coast, humid continental, tropical wet-dry, steppe, mountains, monsoon, equatorial wet, desert, mediterranean, west coast desert, humid subtropical. Climatic zones caused by global circulation and movement of air masses. Air temperature and concentration of oxygen decrease with altitude in troposphere. Climate change: change of atmospheric conditions and its relationships with lithosphere, hydrosphere, biosphere. A complex chemical factory: with many little-understood reactions taking place with in it. Air: nitrogen, oxygen, carbon dioxide, argon, and other trace elements. Temperature: measure of how fast particles are moving. Lot more heat in metal than in wood.
