Question 1

The Arctic Oscillation is defined by variations in atmospheric pressure between the Arctic and the North Pacific and Atlantic.

Accepted Answer

A) True 
 B)False  True

Question 2

The El Nino event of 1972-1973, one of the first to be studied in depth, reduced the annual Peruvian anchovy catch by more than ____ percent.​

Accepted Answer

A)  ​10 
B)  ​20 
C)  ​30 
D)  ​40 
E)  ​50 
A)  ​10 
B)  ​20 
C)  ​30 
D)  ​40 
E)  ​50 E

Question 3

How does El Niño change the weather where you live?​

Accepted Answer

Student answers may vary greatly, depending on whether they live in the United States or elsewhere. For students from the U.S. an appropriate student answer would be that during an El Nino event, a strong subtropical westerly jet stream often directs mid-latitude cyclonic storms into California and heavy rain into the Gulf Coast states. Over the tropical North Atlantic, El Nino tends to reduce the strength of easterly winds at high levels, which disrupts the organization of thunderstorms necessary for hurricane development. Hence, there are fewer hurricanes in this region during El Nino events, and this contributes to a reduced risk of U.S. hurricane landfalls. The opposite occurs during La Nina events, with more frequent hurricanes observed in the North Atlantic and fewer hurricanes in the Northeast Pacific. On average, tropical storms and hurricanes are almost 50 percent more likely to strike the United States during La Nina years as opposed to El Nino years.​

Question 4

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

Accepted Answer

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. 
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.

Question 5

In the three-cell model of the atmosphere, upper level winds are incorrectly predicted to flow from ____.​

Accepted Answer

A)  ​the north 
B)  ​the east 
C)  ​the south 
D)  ​the west 
E)  ​all directions 
A)  ​the north 
B)  ​the east 
C)  ​the south 
D)  ​the west 
E)  ​all directions

Question 6

____________________ momentum is defined as the product of the mass (m) times the velocity (v) times the radial distance (r).​

Accepted Answer

The answer of ____________________ momentum is defined as the product...

Question 7

​In the Northern Hemisphere, the polar jet stream is strongest when

Accepted Answer

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 US are much colder than on the West Coast of the U.S. 
E)  ​it forms during the summer months. 
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 US are much colder than on the West Coast of the U.S. 
E)  ​it forms during the summer months.

Question 8

The average winds aloft are strongest in ____________________.​

Accepted Answer

The answer of The average winds aloft are strongest in...

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

The intertropical convergence zone (ITCZ) is a region where​

Accepted Answer

A)  ​the polar front meets the subtropical high. 
B)  ​northeast trades converge with the southeast trades. 
C)  ​northeast trades converge with the subtropical high. 
D)  ​the Ferrel cell converges with the Hadley cell. 
E)  ​polar easterlies converge with the air at the doldrums. 
A)  ​the polar front meets the subtropical high. 
B)  ​northeast trades converge with the southeast trades. 
C)  ​northeast trades converge with the subtropical high. 
D)  ​the Ferrel cell converges with the Hadley cell. 
E)  ​polar easterlies converge with the air at the doldrums.

Question 11

The ultimate cause of jet streams is the energy imbalance that exists between high and low latitudes.

Accepted Answer

A) True 
 B)False

Question 12

Upwelling occurs along the northern California coast because​

Accepted Answer

A)  ​winds cause surface waters to move away from the coast. 
B)  ​of seismic activity on the ocean bottom. 
C)  ​of gravitational attraction between Earth and the Moon. 
D)  ​water flows from the Atlantic Ocean into the Pacific because they are at different levels. 
E)  ​of volcanic activity on the ocean floor. 
A)  ​winds cause surface waters to move away from the coast. 
B)  ​of seismic activity on the ocean bottom. 
C)  ​of gravitational attraction between Earth and the Moon. 
D)  ​water flows from the Atlantic Ocean into the Pacific because they are at different levels. 
E)  ​of volcanic activity on the ocean floor.

Question 13

During a major El Niño event,​

Accepted Answer

A)  ​Peruvian fishermen harvest a record amount of fish near Christmas time. 
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. 
A)  ​Peruvian fishermen harvest a record amount of fish near Christmas time. 
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.

Question 14

​Which statement describes the subtropical jet stream?

Accepted Answer

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. 
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.

Question 15

Which statement describes the polar front jet stream?​

Accepted Answer

A)  ​It is strongest in summer. 
B)  ​It moves farther north in winter. 
C)  ​It forms near the boundary called the polar front. 
D)  ​It is normally found at a higher elevation than the subtropical jet. 
E)  ​It has lower wind speeds than the subtropical jet stream. 
A)  ​It is strongest in summer. 
B)  ​It moves farther north in winter. 
C)  ​It forms near the boundary called the polar front. 
D)  ​It is normally found at a higher elevation than the subtropical jet. 
E)  ​It has lower wind speeds than the subtropical jet stream.

Question 16

The world's deserts are found at 30° latitude because​

Accepted Answer

A)  ​the intertropical convergence zone is located there. 
B)  ​of the sinking air of the polar front. 
C)  ​of the convergence of the prevailing westerlies and the Northeast Trades. 
D)  ​of the sinking air of the subtropical highs. 
E)  ​of the doldrums. 
A)  ​the intertropical convergence zone is located there. 
B)  ​of the sinking air of the polar front. 
C)  ​of the convergence of the prevailing westerlies and the Northeast Trades. 
D)  ​of the sinking air of the subtropical highs. 
E)  ​of the doldrums.

Question 17

​On a surface weather map during the month of July, one would expect to find what type of pressure system over the desert southwest of the United States?

Accepted Answer

A)  ​monsoon low 
B)  ​Pacific high 
C)  ​thermal low 
D)  ​Aleutian low 
E)  ​Bermuda high 
A)  ​monsoon low 
B)  ​Pacific high 
C)  ​thermal low 
D)  ​Aleutian low 
E)  ​Bermuda high

Question 18

According to the three-cell general circulation model, at the equator we would not expect to find​

Accepted Answer

A)  ​the ITCZ. 
B)  ​a ridge of high pressure. 
C)  ​thunderstorms. 
D)  ​light winds. 
E)  ​heavy showers. 
A)  ​the ITCZ. 
B)  ​a ridge of high pressure. 
C)  ​thunderstorms. 
D)  ​light winds. 
E)  ​heavy showers.

Question 19

The large thermally driven convection cell that is driven by convective "hot" towers along the equator is the​

Accepted Answer

A)  ​Ferrel cell. 
B)  ​Hadley cell. 
C)  ​Ekman spiral. 
D)  ​El Niño cell. 
E)  ​Doldrum cell. 
A)  ​Ferrel cell. 
B)  ​Hadley cell. 
C)  ​Ekman spiral. 
D)  ​El Niño cell. 
E)  ​Doldrum cell.

Question 20

​​Pilots prefer to fly in the core of a jet stream.

Accepted Answer

A) True 
 B)False

The Arctic Oscillation is defined by variations in atmospheric pressure between the Arctic and the North Pacific and Atlantic.

The El Nino event of 1972-1973, one of the first to be studied in depth, reduced the annual Peruvian anchovy catch by more than ____ percent.

How does El Niño change the weather where you live?

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

In the three-cell model of the atmosphere, upper level winds are incorrectly predicted to flow from ____.

____________________ momentum is defined as the product of the mass (m) times the velocity (v) times the radial distance (r).

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

The average winds aloft are strongest in ____________________.

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

The intertropical convergence zone (ITCZ) is a region where

The ultimate cause of jet streams is the energy imbalance that exists between high and low latitudes.

Upwelling occurs along the northern California coast because

During a major El Niño event,

Which statement describes the subtropical jet stream?

Which statement describes the polar front jet stream?

The world's deserts are found at 30° latitude because

On a surface weather map during the month of July, one would expect to find what type of pressure system over the desert southwest of the United States?

According to the three-cell general circulation model, at the equator we would not expect to find

The large thermally driven convection cell that is driven by convective "hot" towers along the equator is the

Pilots prefer to fly in the core of a jet stream.

Earth and Its Atmosphere

Energy - Warming the Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation - Dew - Fog - and Clouds

Stability and Cloud Development

Precipitation

Air Pressure and Winds

Wind - Small-Scale and Local Systems

Air Masses and Fronts

Middle Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Light - Color and Atmospheric Optics

Filters

Exam 10: Wind - Global Systems

The Arctic Oscillation is defined by variations in atmospheric pressure between the Arctic and the North Pacific and Atlantic.

The El Nino event of 1972-1973, one of the first to be studied in depth, reduced the annual Peruvian anchovy catch by more than ____ percent.​

How does El Niño change the weather where you live?​

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

In the three-cell model of the atmosphere, upper level winds are incorrectly predicted to flow from ____.​

____________________ momentum is defined as the product of the mass (m) times the velocity (v) times the radial distance (r).​

​In the Northern Hemisphere, the polar jet stream is strongest when

The average winds aloft are strongest in ____________________.​

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

The intertropical convergence zone (ITCZ) is a region where​

The ultimate cause of jet streams is the energy imbalance that exists between high and low latitudes.

Upwelling occurs along the northern California coast because​

During a major El Niño event,​

​Which statement describes the subtropical jet stream?

Which statement describes the polar front jet stream?​

The world's deserts are found at 30° latitude because​

​On a surface weather map during the month of July, one would expect to find what type of pressure system over the desert southwest of the United States?

According to the three-cell general circulation model, at the equator we would not expect to find​

The large thermally driven convection cell that is driven by convective "hot" towers along the equator is the​

​​Pilots prefer to fly in the core of a jet stream.

Earth and Its Atmosphere

Energy - Warming the Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation - Dew - Fog - and Clouds

Stability and Cloud Development

Precipitation

Air Pressure and Winds

Wind - Small-Scale and Local Systems

Air Masses and Fronts

Middle Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Light - Color and Atmospheric Optics

Filters

The El Nino event of 1972-1973, one of the first to be studied in depth, reduced the annual Peruvian anchovy catch by more than ____ percent.

How does El Niño change the weather where you live?

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

In the three-cell model of the atmosphere, upper level winds are incorrectly predicted to flow from ____.

____________________ momentum is defined as the product of the mass (m) times the velocity (v) times the radial distance (r).

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

The average winds aloft are strongest in ____________________.

The intertropical convergence zone (ITCZ) is a region where

Upwelling occurs along the northern California coast because

During a major El Niño event,

Which statement describes the subtropical jet stream?

Which statement describes the polar front jet stream?

The world's deserts are found at 30° latitude because

On a surface weather map during the month of July, one would expect to find what type of pressure system over the desert southwest of the United States?

According to the three-cell general circulation model, at the equator we would not expect to find

The large thermally driven convection cell that is driven by convective "hot" towers along the equator is the

Pilots prefer to fly in the core of a jet stream.