GEOG102 Study Guide - Final Guide: Atmospheric Circulation, Occluded Front, Cyclogenesis
10 Oct 2016
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Cold fronts: cold air forces warm air upwards, 400 km wide (250 miles) - 2 slope. Warm fronts: to 1 slope, warm air moves up and over cold air, 1000 km wide (600 miles) Squall line: squall: sudden episode of high winds that is generally associated with bands of thunderstorms, a zone slightly ahead of a fast-advancing cold front where wind patterns are rapidly changing and stormy and precipitation is strong. Migrating low-pressure weather systems that occur in the middle latitudes, outside the tropics. Low-pressure centre with converging, ascending air spiraling inward counter-clockwise in. Northern hemisphere and inward clockwise in the southern hemisphere: cyclogenesis, a disturbance develops along the polar front or in certain other areas. Storm track seasonally shifting path followed by a migrating low-pressure system. Jet streams polar jet stream: goes all the way around the globe subtropical jet stream: associated with some circulation.
