01:119:115 Chapter Notes - Chapter 52: Cool Air, Westerlies, Biome
28 Mar 2016
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Document Summary
Sunlight hits earth at angles afects its amount of heat and light per unit of surface. Intensity strongest in the tropics (between 23. 5 n and 23. 5 s laitude) sunlight strikes. Earth most directly: global air circulaion and precipitaion paterns. Air to heat up, expand, rise and low from trophic toward poles = warm wet air masses. As it rises cools: releases water precipitaion paterns. Over 30 n and 30 s, begins to descend = air is dry and absorbs moisture deserts. Over 60 n and 60 s, rises again cools and releases water over poles sinks again. Air lowing close to earth"s surface creates predictable global wind paterns. Cooling trade winds blow from east to west in the tropics; prevailing westerlies blow from west to east in the temperate zones: regional and local efects on climate. Climate is afected by seasonality, large bodies of water, and mountains: seasonality, earth"s ilted axis of rotaion + annual passage around sun.
