Quiz 8 The undulating waves in the upper level air flow that circle the earth are called __ waves. 2. The northernmost jet stream in North America is called the __ __ jet stream. 3. The southernmost jet stream in North America is called the __ jet stream. 4. The jet stream in #3 above is located: a. poleward end of Hadley cell, below tropopause b. Above polar front c. in the trade winds d. at the top of the stratosphere

5. Which has high density: A. dry air mass B. wet air mass 6 5. Which has high density: A. dry air mass B. wet air mass 6. The type of front that separates two air masses that are unlike in moisture only (same temperature) is a : A. warm front B. stationary front C. dry line

7. Label the air masses, using the two-letter system. 1. 2. 3. 4 8 6 7 5

9. Draw the weather map symbol for the following fronts: a 9. Draw the weather map symbol for the following fronts: a. warm front b. cold front c. stationary front d. occluded front e. dryline