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Study guide chapters 3 and 4 Meteorology

1) When is the warmest time of the day 5’ above the ground (in most areas)?
2) What phenomenon can only be seen with your back to the sun with rain in front of you?
3) When it is January and winter in the northern hemisphere, what is it in the southern hemisphere?
4) List the characteristics of an Equinox.
5) When do the strongest radiation inversions occur?
6) On a summer evening at middle latitudes, twilight adds about how much time to daylight?
7) What is refraction?
8) You would most likely see a sun dog or halo associated with what cloud type?
9) Halos are caused when light does what ?
10) What are growing-degree days? (also, know how to use them in a problem)
11) What is the difference between an inferior image and a superior image?
12) List the most important reason summers are not warmer in the s. hemisphere than in the n. hemisphere?
13) In what direction should large windows in a house in the northern hemisphere face?
14) Why might the recorded air temperature may be warmer than freezing when frost occurs?
15) Describe the general characteristics of a north facing hill in a mountainous region of the U.S.
16) How are crepuscular rays produced?
17) How (or when) do secondary rainbows occur?
18) What is a “glory” and how does it form?
19) What happens to light passing through a cloud as it grows taller and thicker?
20) At what time does the lowest temperature of the day usually occur?
21) When driving on a road that runs east – west, on what day(s) of the year would you have the sun shining directly in your eyes?
22) A ring of light encircling the sun or moon could be called either of what 2 names?
23) Refraction of light is responsible for what atmospheric effects?
24) What is the wind chill factor, and what aspects does it take into account?
25) What are thermal belts?
26) Why do you see red light reflected off paper?
27) For what time period is data averaged to arrive at “normal”?
28) Sunlight reflecting off ice crystals produces what effect?
29) Scattering is responsible for what atmospheric effects?
30) At what time does the maximum daytime temperature occur relative to solar radiation?
31) During what weather is hypothermia most common?
32) Lag time in daily temperature refers to lag time between what two items?
33) What optical phenomena forms in a similar manner as a halo?
34) What is white light, relative to electromagnetic radiation?
35) Why do air molecules selectively scatter visible light?
36) What day has the fewest daylight hours in the northern hemisphere?
37) What are crepuscular rays?
38) What would likely happen in the middle latitudes if Earth’s axial tilt were increased?
39) What color would the sky be if Earth had no atmosphere?
40) Why are the polar regions prevented from becoming progressively cooler (since they radiate more energy than they receive)?
41) When does radiational cooling typically occur?
42) The “green flash” is largely an example of what?
43) Compare seasonal temperature variation in the N. hemisphere with that of the southern hemisphere.
44) If northern latitudes have 24 hours of sunlight on June 22, why aren’t they warmer than latitudes further south?
45) Cloud iridescence is caused mainly by what?
46) Where does the greatest daily temperature variation usually occur?
47) The “smoke” of the Smoky mts, and the “blue” of the Blue Ridge mountains are examples of what?
48) Why is it difficult to see at night in fog with high beam lights on?
49) What are isotherms?

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Lowell Bailey

Bedford-North Lawrence High School
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