ENV100Y5 Lecture Notes - Lecture 46: Northern Hemisphere, Cool Air, Pressure Gradient

• School: UTM
• Department: Environment
• Course: ENV100Y5
• Professor: Barbara Murck

Document Summary

Chapter 14 - atmosphere & weather (part 2) Front is named for the of air mass that is arriving. Warm front:warm, moist air moves in to replace colder, dry air that is moving away. Cold front:where cold, dry air is pushing into warmer, moister air. Try pushing your hand forward on your desk vs. pulling it back! Convection moves air: movement by air driven by temperature (vertical movement) 1- warm, less dense air rises, creating vertical currents. 2- rising air expands, cools. As it rises it looses water as precipitation. 3- moisture condenses, precipitation falls. From the northern hemisphere (earth goes from the east to the west) Air masses will always be deflected to the right (whether its coming. The coriolis force acts in an opposite sense in the two hemispheres: Hurricanes have a low pressure in the centre *they rotate inwards) Hadley cells form near the equator where surface air warms, rises, and.