PHY 118 final study guide -chapter 8

PHY 118 final study guide -chapter 8 - PHY 118 Final Study...

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PHY 118 Final Study Guide: Chapter 8 I. Air Masses a. An immense body of air (1600 km across or more and several km thick) which is characterized by homogenous physical properties (especially temperature and moisture content) at any given altitude b. When they move out of their area of origin, they carry these temperatures and characteristics with them and effect large portions of continents c. Horizontal uniformity is not complete because they may extend through 20 degrees or more of latitude, so differences in temperature and humidity vary from point to point d. Air-Mass Weather – Because it takes several days to traverse an area, the region under its influence will experience generally constant weather conditions II. Air Mass Source Regions: a. The areas in which air masses originate; characteristics of this region determine the initial characteristics of an air mass b. Ideal source region : (Dominated by stationary or slow-moving anticyclones with their extensive areas of calms or light winds)
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This note was uploaded on 05/05/2011 for the course PHY 118 taught by Professor Schroeder during the Spring '11 term at Miami University.

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PHY 118 final study guide -chapter 8 - PHY 118 Final Study...

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