| Review
Questions |
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1. a)What is an air mass?
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b)Where will air masses form?
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c)Why do air masses form in association with high pressures? Why do they
not tend to form in association with low pressures?
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2. a)Why do air masses move from their source regions?
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b)What happens to an air mass as it moves from its source region?
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c) What are the boundaries between air masses called?
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3. a) How are lake
effect snows generated?
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b) Why do areas of N. Indiana get lake-effect snows?
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4. a) How does a low pressure develop at the Polar Front?
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b) What happens next in terms of surface level winds?
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c) What are the characteristic stages in the development of a cold front?
warm front? midlatitude cyclone?
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d) How would you identify each of these on a surface
weather map?
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5. a) Distinguish between a warm front and a cold front. Take into account
their different speeds, cross section, slopes, surface weather conditions,
etc.
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b) Why does warm air rise at a front?
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c) Why does the precipitation precede a warm front but occur at the time
of a cold front? What are the first signs of an approaching warm front?
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6. a) What is an occluded
front?
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b) Distinguish between a warm and a cold occluded front.
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7. Draw a series of diagrams to show the development of a mid-latitude
cyclone starting from the stationary polar front and ending with the
occluded front.
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8. a) Where is the warm sector located in the mid-latitude cyclone?
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b) Where does overrunning occur?
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c) Where does precipitation occur?
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9. a) What does a cyclone look like from a satellite?
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b) What happens to surface pressure as a cyclone passes?
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c) Why does the shape of a midlatitude cyclone change through time?
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d) Why do midlatitude cyclones move west to east across the US?
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e) On the
current weather map, locate the midlatitude cyclones in the proximity
of the US.
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10. a) Where does a midlatitude cyclone derive its energy from?
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b) How big is it?
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c) How long does it last?
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d) Why does it dissipate?
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11. Using the online
resources, explain the weather of the last three days in terms of air
masses and fronts.
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