Question 1

Why is the West Wind Drift not considered a gyre?

Accepted Answer

A)  It is too large to be a gyre. 
B)  It is a closed circuit current. 
C)  It is driven by westerly winds. 
D)  It does not flow around the margins of an ocean basin. 
A)  It is too large to be a gyre. 
B)  It is a closed circuit current. 
C)  It is driven by westerly winds. 
D)  It does not flow around the margins of an ocean basin.

Question 2

If the gradual rise of deep water at temperate and tropical zones were to stop, the thermocline would rise, making the difference in water layers steeper.

Accepted Answer

A) True 
 B)False

Question 3

Where is density stratification the least pronounced?

Accepted Answer

A)  Temperate latitudes 
B)  Polar latitudes 
C)  Tropical latitudes 
D)  Areas where there is upwelling 
A)  Temperate latitudes 
B)  Polar latitudes 
C)  Tropical latitudes 
D)  Areas where there is upwelling

Question 4

What powers a Slocum glider?

Accepted Answer

A)  Batteries 
B)  Photovoltaics 
C)  Currents 
D)  Gravitational energy, buoyancy, and heat 
A)  Batteries 
B)  Photovoltaics 
C)  Currents 
D)  Gravitational energy, buoyancy, and heat

Question 5

Upwelling can increase biological productivity, but it is unable to influence weather conditions.

Accepted Answer

A) True 
 B)False

Question 6

Why are fisheries heavily impacted by ENSO events?

Accepted Answer

A)  Upwelling ceases 
B)  Nutrient-rich currents are interrupted when the trade winds shift 
C)  Low pressure systems create downwelling events rather than the normal upwelling 
D)  Rise in sea level effects migration patterns 
A)  Upwelling ceases 
B)  Nutrient-rich currents are interrupted when the trade winds shift 
C)  Low pressure systems create downwelling events rather than the normal upwelling 
D)  Rise in sea level effects migration patterns

Question 7

The Gulf Stream has decreased in recent years due to an influx of freshwater.

Accepted Answer

A) True 
 B)False

Question 8

What is an El Niño/Southern Oscillation (ENSO) event? La Niña? How are they connected to each other?

Accepted Answer

The answer of What is an El Niño/Southern Oscillation (ENSO)...

Question 9

The horizontal movement of water by wind can lead to vertical movement in surface water.

Accepted Answer

A) True 
 B)False

Question 10

What is the Ekman spiral?

Accepted Answer

A)  The movement of water in the same direction as the wind above 
B)  The decreasingly slower movement of water as it gets further away from the wind source 
C)  The sum of all water directions in wind affected layers 
D)  The friction created on the ocean's surface layer from wind 
A)  The movement of water in the same direction as the wind above 
B)  The decreasingly slower movement of water as it gets further away from the wind source 
C)  The sum of all water directions in wind affected layers 
D)  The friction created on the ocean's surface layer from wind

Question 11

What prevents North Atlantic Deep Water from moving on a large scale like the Antarctic Bottom Water?

Accepted Answer

A)  The density of the water 
B)  The topography of the basin 
C)  The composition of the sediments 
D)  The salinity of the water 
A)  The density of the water 
B)  The topography of the basin 
C)  The composition of the sediments 
D)  The salinity of the water

Question 12

What is the global conveyer belt referring to? How does this thermohaline flow transport heat throughout the world ocean? Include aspects of upwelling and downwelling.

Accepted Answer

The answer of What is the global conveyer belt referring...

Question 13

What is La Niña?

Accepted Answer

A)  A warmer than normal circulation event 
B)  A circulation due to density and salinity 
C)  A colder than normal circulation event 
D)  The result of volcanic eruptions 
A)  A warmer than normal circulation event 
B)  A circulation due to density and salinity 
C)  A colder than normal circulation event 
D)  The result of volcanic eruptions

Question 14

The global conveyer belt transports juvenile organisms, mixes nutrients, and distributes gases and solids.

Accepted Answer

A) True 
 B)False

Question 15

What does not affect surface currents?

Accepted Answer

A)  Gravity 
B)  Coriolis Effect 
C)  Wind 
D)  Density 
A)  Gravity 
B)  Coriolis Effect 
C)  Wind 
D)  Density

Question 16

What is another name for undercurrents?

Accepted Answer

A)  Equatorial currents 
B)  Transverse currents 
C)  Countercurrents 
D)  Subterranean currents 
A)  Equatorial currents 
B)  Transverse currents 
C)  Countercurrents 
D)  Subterranean currents

Question 17

What is the disadvantage of using drift bottles to study currents?

Accepted Answer

A)  They must be continuously monitored by radar. 
B)  They are not successful for determining coastal circulations. 
C)  The intermediate movements of the bottles are unknown. 
D)  They are frequently lost. 
A)  They must be continuously monitored by radar. 
B)  They are not successful for determining coastal circulations. 
C)  The intermediate movements of the bottles are unknown. 
D)  They are frequently lost.

Question 18

Caballing is the mixing of two water masses with the same density but different temperatures and salinity, resulting in a new water mass with lower density.

Accepted Answer

A) True 
 B)False

Question 19

Where does the largest amount of upwelling occur?

Accepted Answer

A)  Equatorial upwelling 
B)  Polar upwelling 
C)  Coastal upwelling 
D)  Mid-latitude upwelling 
A)  Equatorial upwelling 
B)  Polar upwelling 
C)  Coastal upwelling 
D)  Mid-latitude upwelling

Question 20

The Coriolis Effect and gravity maintains the hill of water present in the center of oceanic gyres.

Accepted Answer

A) True 
 B)False

Why is the West Wind Drift not considered a gyre?

If the gradual rise of deep water at temperate and tropical zones were to stop, the thermocline would rise, making the difference in water layers steeper.

Where is density stratification the least pronounced?

What powers a Slocum glider?

Upwelling can increase biological productivity, but it is unable to influence weather conditions.

Why are fisheries heavily impacted by ENSO events?

The Gulf Stream has decreased in recent years due to an influx of freshwater.

What is an El Niño/Southern Oscillation (ENSO) event? La Niña? How are they connected to each other?

The horizontal movement of water by wind can lead to vertical movement in surface water.

What is the Ekman spiral?

What prevents North Atlantic Deep Water from moving on a large scale like the Antarctic Bottom Water?

What is the global conveyer belt referring to? How does this thermohaline flow transport heat throughout the world ocean? Include aspects of upwelling and downwelling.

What is La Niña?

The global conveyer belt transports juvenile organisms, mixes nutrients, and distributes gases and solids.

What does not affect surface currents?

What is another name for undercurrents?

What is the disadvantage of using drift bottles to study currents?

Caballing is the mixing of two water masses with the same density but different temperatures and salinity, resulting in a new water mass with lower density.

Where does the largest amount of upwelling occur?

The Coriolis Effect and gravity maintains the hill of water present in the center of oceanic gyres.

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water and Ocean Structure

Ocean Chemistry

Circulation of the Atmosphere

Waves

Tides

Coasts

Life in the Ocean

Plankton, Algae, and Plants

Marine Animals

Marine Communities

Marine Resources

The Ocean and the Environment

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Exam 9: Circulation of the Ocean

Why is the West Wind Drift not considered a gyre?

If the gradual rise of deep water at temperate and tropical zones were to stop, the thermocline would rise, making the difference in water layers steeper.

Where is density stratification the least pronounced?

What powers a Slocum glider?

Upwelling can increase biological productivity, but it is unable to influence weather conditions.

Why are fisheries heavily impacted by ENSO events?

The Gulf Stream has decreased in recent years due to an influx of freshwater.

What is an El Niño/Southern Oscillation (ENSO) event? La Niña? How are they connected to each other?

The horizontal movement of water by wind can lead to vertical movement in surface water.

What is the Ekman spiral?

What prevents North Atlantic Deep Water from moving on a large scale like the Antarctic Bottom Water?

What is the global conveyer belt referring to? How does this thermohaline flow transport heat throughout the world ocean? Include aspects of upwelling and downwelling.

What is La Niña?

The global conveyer belt transports juvenile organisms, mixes nutrients, and distributes gases and solids.

What does not affect surface currents?

What is another name for undercurrents?

What is the disadvantage of using drift bottles to study currents?

Caballing is the mixing of two water masses with the same density but different temperatures and salinity, resulting in a new water mass with lower density.

Where does the largest amount of upwelling occur?

The Coriolis Effect and gravity maintains the hill of water present in the center of oceanic gyres.

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water and Ocean Structure

Ocean Chemistry

Circulation of the Atmosphere

Waves

Tides

Coasts

Life in the Ocean

Plankton, Algae, and Plants

Marine Animals

Marine Communities

Marine Resources

The Ocean and the Environment

Filters