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Midterm

EESA09H3 Study Guide - Midterm Guide: Lightning, Landfall, Wind Shear


Department
Environmental Science
Course Code
EESA09H3
Professor
Tanzina Mohsin
Study Guide
Midterm

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Coriolis Force
Fictitious force due to rotation of the earth
In northern hemisphere, deflects to the right and left in the southern hemisphere
Strongest at poles, weaker at equator
Cumulonimbus
Puffy cloud with rain
Towering thunderstorm cloud
Stratocumulas
Layered puffy clouds
Greater or similar horizontal extent than vertical extent horizontal and vertical extent
Latent Heat
Energy released due to a change in phase of matter
Heat released when gass condenses to liquid, opposite is true when heat required
Once store has formed, latent heat release provides more fuel for the storm
Chinook
Occurs on lee side of mountains in Calgary
Air traveling on windward side reaches a point where the water condenses and cloud is formed, on the leeward
side the air warms and is dry which is the result of latent heat release and cloud formation
Trade Wind
Between equator and 30N, flows southwest due to the coriolis effect
Surface components of Hadley cell
Doldrums
Regions of weak winds in the equatorial region (ICTZ)
Division between north and south Hadley cells
Horse Latitudes
30 N and S at the boundary between the Hadley and Ferrel cells
Winds are weak in this area and boats from Europe were unable to return to Europe so jettisoned horses
Descending air
Polar Front
Division between Polar cells and Ferrel cells
Ascending air
ITCZ
Division between north and south Hadley cells
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Ascending air
Hadley Cell
Part of global circulation
Air rises from the surface at equator, travels poleward and sinks at 30 N or S
Ferrel Cell
30-60 N or S
Air moves on the surface to the poles and to the equator in the upper troposphere
Land/Sea breeze
Differential headting of land and sea on a daily basis
Air moves towards land from the sea in the day, away from land at night
Fujita Scale
Scale of tornado strength
F0-F6 in terms of intensity of damage
Layers of the Atmosphere
Temperature decresases in the troposphere
Temperature increases in the stratosphere
Temperature decreases in the mesosphere
Temperature increases in the thermosphere
Hail is sometimes formed in cumulonimbus clouds
The QBO affects stratospheric winds
Dust storms only occur in dry areas
Thunderstorms sometimes cause dust storms
Firestorms only occur in dry areas FALSE
T. Ralph Pacific Hurricanes
S.A. Isard Midlatitude Cyclones
Where do midlatitude storms which affect Toronto originate? What percentage is locally generated? What is seasonal
distribution of these storms?
Describe the one cell theory?
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