1. Meteorology Review Sheet Answers

2. The for main layers of the atmosphere are
troposphere
stratosphere
mesosphere
thermosphere

3. What are the main gases in the atmosphere?
Nitrogen – 78%
Oxygen – 21%
Argon %
Carbon Dioxide %

4. 3. Review the 10 types of clouds

5. Cumulus = puffy Cirrus = wispy Cirro = high level Alto – middle level
Nimbus = rain
                                  
                          
Alto cumulus
Stratus = layers
Strato = low level

6. 4. Define the following words
Hydrosphere – all the water on Earth – solid, liquid and gas
Relative Humidity – amount of water vapor in air compared to amount the air could hold.
Dew Point – temperature at which condensation occurs
Saturated Air – Air is holding all the water vapor it can hold (RH = 100%)
Sling psychrometer – instrument used to find dew point and relative humidity
Condensation nuclei – particles around which condensation occurs – needed to form clouds

7. 5. Use the charts on page 704 to answer:
Dry Bulb = 24
Wet bulb = 21
Dry Bulb = 16
Wet bulb = 10
Depression =
Dew Point =
Relative Humidity = 3 20
76% 6 4
45%
Depression =
Dew Point =
Relative Humidity =

8. 6. What is air pressure?
Air pressure is the weight of the air pushing on earth’s surface.

9. 7. Air pressure is measured with a barometer
7. Air pressure is measured with a barometer. The 2 types are aneroid and mercury.

10. 8. How does air pressure change with altitude?
Air pressure decreases as altitude increases.

11. 9. Put an H or L next to each description of pressure characteristics below.
Cold temperatures
Rising air
Poor weather
Warm temps
Fair weather
Air moving in
Air moving out
Rising barometer H L

12. 10. A line connecting points of equal pressure is an isobar
10.A line connecting points of equal pressure is an isobar. They are 4 mb apart.

13. 11. Label the lines below and draw in the movement of the wind.
1004
1004
1000
1008 H L
996
1012

14. Winds always moves from high pressure to low pressure
Winds always moves from high pressure to low pressure. They are named according to the direction they come from.
13. Winds curve due to the Coriolis Effect. This is caused by Earth’s rotation. In the northern hemisphere, winds curve to the right and in the southern hemisphere, they curve to the left.

15. 14. Label the pressure belts

16. 14. Label the wind belts

17. 16. What wind moves weather across the United States?
Prevailing westerlies and the Jet Stream

18. 17. What is an air mass?
A body of air with the characteristics of the area it forms over.

19. 18. Fill in the table below on air masses.
Name
Temp
Moisture
Where formed
Area affected cP
Continental polar
Cold
Dry
On land, near the poles
Northern central US cT
Continental tropical
Warm
On land near the equator
Southern central US mP
Maritime polar
Wet
Over water near the poles
Northeastern and northwestern US mT
Maritime tropical
Over water near the equator
Southeastern and southwestern US

20. 19. What is a front. A front is the boundary between 2 air masses
19. What is a front? A front is the boundary between 2 air masses. They move west to east across the US

21. 20. Warm Front

22. 20. Cold Front

23. 20. Stationary Front

24. 20. Occluded Front

25. 21. A weather pattern frequently experienced by the United States due to the boundary between the polar easterlies and the prevailing westerlies is a traveling cyclone.

26. Review! The 3 types of heat transfer are:
Conduction- due to contact, like touching a hot stove
Convection- due to differences in density (lava lamp)
Radiation – by electromagnetic waves – like the energy that comes from the sun

27. What is the coldest part of the day?
What is the warmest part of the day?

28. Stations Models Wind dir and speed Air temp Pressure Dew point
Sky coverage

29. Good luck on the test!