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Chapter 8Weather
Geosystems 6eAn Introduction to Physical Geography
Robert W. ChristophersonCharles E. Thomsen
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Weather Air Masses Atmospheric Lifting Mechanisms Midlatitude Cyclonic Systems Violent Weather
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Air Masses Air Masses Affecting North America Air Mass Modification
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Air Masses
Figure 8.2
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Atmospheric Lifting Mechanisms Convergent Lifting Convectional Lifting Orographic Lifting Frontal Lifting (Cold and Warm Fronts)
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Lake Effect
Snowbelts
Figure 8.5
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Atmospheric Lifting Mechanisms
Figure 8.6
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Local Heating and Convection
Figure 8.7
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Convection over Florida
Figure 8.8
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Orographic Precipitation
Figure 8.9
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Orographic Patterns
Figure 8.10
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Frontal LiftingCold Fronts
Cold air forces warm air aloft400 km wide (250 mi)
Warm FrontsWarm air moves up and over cold air1000 km wide (600 mi)
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Cold Front
Figure 8.11
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Cold Frontand
Squall Line
Figure 8.12
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Warm Front
Figure 8.13
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Life Cycle of a Midlatitude Cyclone CyclogenesisOpen stageOccluded stage
Occluded frontStationary front
Dissolving stageStorm tracks
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Midlatitude Cyclone
Figure 8.14
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Midlatitude Cyclone
Figure 8.15
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Average and Actual Storm Tracks
Figure 8.16
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Weather Forecasting
Figure 8.17
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Violent WeatherThunderstorms Tornadoes Tropical Cyclones
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Thunderstorms
Figure 8.19
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Thunderstorms
Figure 8.20
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Hailstones
Figure 8.21
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Thunderstorms
Figure 8.22
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Mesocyclone andTornado
Figure 8.23
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Tornadoes
Figure 8.23 Figure 8.24
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Tornado Damage
Figure 8.23
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Tornadoes
Figure 8.25
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Easterly Wave
Figure 8.26
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Tropical Cyclones
Figure 8.27
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Canadian and Brazilian Hurricanes
Figure 8.28
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Hurricane Isabel, Cape Hatteras and the Outer Banks
Figure 8.29
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Profile of a Hurricane
Figure 8.30
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1995 Atlantic Storm Season
Figure FS 8.1.1
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1995 Atlantic Storm Season
Figure FS 8.1.2
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Hurricane Andrew
Figure 8.31
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End of Chapter 8
Geosystems 6eAn Introduction to Physical Geography
Robert W. ChristophersonCharles E. Thomsen