What is the Inter-tropical convergence zone (ITCZ)?
the line along the equator that divides the hadley cells.
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What is the name of the divide line between the hadley and ferell cell?
subtropical high pressure belt (horse latitudes)
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Where are jet streams found?
between convection cells
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What causes jet streams to form?
Steep pressure gradient forms when air masses over polar (low pressure) and horse (high pressure) lattitudes.
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What is an atmospheric front?
Boundary between 2 air masses of different densities, temperatures, pressures or humidities
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Give 2 examples of a stationary front
polar front & arctic front
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What type of cloud indicates a cold front?
cumulonimbus
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What type of cloud indicates a warm front?
nimbostatus
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What is the name of a combined warm and cold front?
occluded front
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Explain how convergence occurs in rossby waves
As air moves southwards, it gains a stronger anticlockwise spin
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Explain how divergence occurs in rossby waves
As air moves northwards, its spinning decreases.
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What does rossby wave convergence generate?
surface areas of high pressure
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What does rossby wave divergence generate?
surface areas of low pressure
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What is the difference between barotropic and baroclinic?
a barotropic atmosphere occurs when isotherms run parallel to contour lines, a baroclinic atmosphere occurs when isotherms (short waves) cross contour lines
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What is a deformation zone?
an area in the atmosoher where winds converge along one axis and diverage along another
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What is the omega block?
a combination of 2 low pressure areas and one higher pressure area forming the greek letter omega.
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What is the environmental lapse rate?
The rate of change in temperature with altitude, not affected by the saturation of water vapour in the atmospher
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define "adiabatic"
whereby heat does not enter or leave the air parcel
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Other cards in this set
Card 2
Front
What is the name of the divide line between the hadley and ferell cell?
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