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The ____________________ is a boundary separating cold polar air to the north from warm subtropical air to the south, the greatest contrast in air temperature occurs along the ____________________.

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polar fron...

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The polar front jet stream can affect weather as far south as Florida and Mexico.

A) True
B) False

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A jet stream transfers more heat across the globe when it is zonal.

A) True
B) False

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In Honolulu, Hawaii (latitude 21 degrees N) , you would most likely experience winds blowing from the ____.


A) northeast
B) south
C) southwest
D) northwest
E) west

F) C) and D)
G) A) and C)

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Briefly describe where each of the following features is found in Earth's general circulation. What meteorological conditions might you find associated with each feature? horse latitudes trade winds ITCZ polar front doldrums

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Over the ocean, the weak pressure gradie...

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During a major El Niño event, ____.


A) Peruvian fishers harvest a record amount of fish near Christmastime
B) extensive ocean warming occurs over the tropical Pacific
C) the Northeast trade winds increase in strength
D) California experiences severe drought conditions
E) the average surface air temperature of the entire planet decreases by several tenths of a degree Celsius

F) A) and C)
G) A) and B)

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Explain the conditions that create the North Atlantic Oscillation (NAO)and explain how the positive and negative phases of the NAO impacts weather on both sides of the Atlantic.

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The NAO is a periodic reversal of pressu...

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In the three-cell model, the wind belt observed on the poleward side of the polar front is called the ____.


A) polar easterlies
B) prevailing westerlies
C) northeast trades
D) doldrums
E) polar westerlies

F) A) and C)
G) A) and E)

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Major ocean currents in the North Indian Ocean reverse direction between summer and winter.

A) True
B) False

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For upwelling to occur along the west coast of North America, winds flowing from the ____ have to exist.


A) east
B) west
C) sea
D) south
E) north

F) B) and C)
G) A) and E)

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The single-cell model is more reflective of real-world wind patterns than the three-cell model is.

A) True
B) False

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Describe at least two important ways that the ocean interacts with large-scale atmospheric wind systems.

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The atmosphere and oceans are both dynam...

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Which is an assumption of the single-cell model of the general circulation of the atmosphere?


A) Earth's surface is uniformly covered with water.
B) Earth rotates once in 24 hours.
C) Excessive heating of the equatorial area produces a broad region of surface high pressure, while at the poles excessive cooling creates a region of surface low pressure.
D) Prevailing winds in middle latitudes blow from east to west.
E) The regions over the poles are referred to as doldrums.

F) B) and C)
G) B) and E)

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In the Northern Hemisphere, the polar jet stream is strongest when ____.


A) air north of the polar front is much colder than air south of the polar front
B) air north of the polar front is much warmer than air south of the polar front
C) air temperatures on opposite sides of the polar front are about equal
D) air temperatures on the East Coast of the United States are much colder than on its West Coast
E) it forms during the summer months

F) C) and D)
G) C) and E)

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Which statement describes the subtropical jet stream?


A) It forms along the polar front.
B) It generally blows from west to east.
C) It is found at the mesopause.
D) It is normally located poleward of the polar front jet stream.
E) Its wind speeds go up 100 knots.

F) None of the above
G) A) and D)

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At Barrow, Alaska (latitude 70 degrees N) , you would expect the prevailing wind to be ____.


A) northerly
B) easterly
C) southerly
D) westerly
E) northeasterly

F) A) and D)
G) A) and C)

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The subtropical jet stream is usually found between ____.


A) 0 degrees to 10 degrees latitude
B) 10 degrees to 20 degrees latitude, 100-mb level
C) 20 degrees to 30 degrees latitude, 200-mb level
D) 30 degrees to 40 degrees latitude, 500-mb level
E) 40 degrees to 50 degrees latitude, 1000-mb level

F) A) and E)
G) A) and D)

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On a large circle, show and describe where the major pressure and wind belts would be found according to the three-cell model of Earth's general circulation.

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Answers may vary, but student drawings n...

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Jet streams sometimes split into two branches.

A) True
B) False

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The average winds aloft are strongest in ____________________.

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