Geography 1300A/B Midterm: Geography 1300 Midterm #2 Notes

• School: Western University
• Department: Geography
• Course: Geography 1300A/B
• Professor: Mark Moscicki

Document Summary

Large areas of air with similar properties (temperature, humidity etc. ) Their movement results in the day to day changes of weather. The location where an air mass develops is called its source region. Classifying air masses: classification by moisture (c, m, c = continental (dry, m = maritime (moist, classification by temperature (a, p, t, a = arctic (cold, p = polar (cool, t = tropical (warm) Mp maritime polar (moist, cold air: example source region: maritime provinces. Mt maritime tropical (moist, warm air: example source region: southeast usa. Ma not listed cause it"s not common in north america. Air mass movement it is a slow process triggered by winds both at the surface and aloft. When two different types of air masses collide, volatile weather often results: air colliding = convergence, when air converges, it is forced upward thus resulting in clouds and precipitation.