OCE Ch. 7

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Please identify the word and/or phrase that does NOT fit the pattern. Enter only the letter of the answer (caps, no period, and not the full entry) in the field below. A. Agulhas Current B. Benguela Current C. California Current D. Canary Current E. West Australian Current

Agulhas Current

Compared to an eastern boundary current in a gyre, which of the following statements is true for a western boundary current?

All the above statements are true of western boundary currents

Which of the following is a western boundary current?

Brazil Current

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Please identify the word and/or phrase that does NOT fit the pattern. Enter only the letter of the answer (caps, no period, and not the full entry) in the field below.. A. California Current B. Canary Current C. Gulf Stream D. North Atlantic Current E. North Equatorial Current in the Atlantic Ocean

California Current

In the northern atmosphere, Ekman transport pushes surface water to the right of the wind direction

True

Monsoons are seasonal pressure systems that develop at lower latitudes over continents, which cause changes in seasonal winds and precipitation patterns

True

Western boundary currents such as the Gulf Stream transport warm water from the tropics towards higher latitudes.

True

Deep ocean currents are driven primarily by:

density differences

Deep ocean currents often move cold, dense water away from the poles

True

Deep ocean water can be enriched in oxygen when it is mixed with surface water

True

Deep ocean water masses have characteristic temperatures and salinities.

True

The actual movement of surface water due to Ekman transport in the Northern Hemisphere is about __________.

45° to the RIGHT of wind direction

The arrangement of water masses in the southern Atlantic Ocean from the surface to the bottom is:

Antarctic Intermediate Water, North Atlantic Deep Water, Antarctic Bottom Water

Deep ocean water does not travel across the equator

False

Surface currents affect about 90% of the world's ocean water

False

Surface or wind-driven currents move water primarily in a vertical direction in the ocean.

False

The Gulf Stream moves water away from the equator; the Benguela Current moves some of this same water back toward the equator.

False

The West Wind Drift occurs at 60 degrees North around the Arctic Circle

False

The densest ocean water is North Atlantic Deep Water

False

Which of the following is NOT an eastern boundary current?

Gulf Stream

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Please identify the word and/or phrase that does NOT fit the pattern. Enter only the letter of the answer (caps, no period, and not the full entry) in the field below. A. Gulf of Alaska B. Indian C. North Atlantic D. South Atlantic E. South Pacific

Gulf of Alaska

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Please identify the word and/or phrase that does NOT fit the pattern. Enter only the letter of the answer (caps, no period, and not the full entry) in the field below. A. thermohaline circulation B. density-driven circulation C. Antarctic Bottom Water D. Kuroshio Current E. North Atlantic Deep Water

Kuroshio Current

The deepest and most dense water mass in the world ocean is formed in the

Southern Ocean

Downwelling may be the result of winds blowing parallel to a coastline or the convergence of surface currents.

True

Dynamic topography can be used to determine current direction and velocity

True

During a strong El Niño event, the news media might be expected to cover

a tropical cyclone in Hawaii or Tahiti

When a meander from the Gulf Stream pinches off and isolates a body of water within the North Atlantic gyre, the body of water is called a:

cold core ring

Match the term or person with the appropriate phrase. California Current

cold current, northern hemisphere, temperate latitudes

Match the term or person with the appropriate phrase. Canary Current

cold current, northern hemisphere, temperate latitudes

Match the term or person with the appropriate phrase. West Wind Drift

cold current, polar latitudes, southern hemisphere

Match the term or person with the appropriate phrase. Benguela Current

cold current, southern hemisphere, temperate latitudes

The worldwide effects of El Nino include all of the following except:

drought in the U.S. Gulf coastal states

Match the term or description with the appropriate phrase. upwelling

movement of water from the BOTTOM to the TOP of the water column

Match the term or description with the appropriate phrase. Ekman transport

net water movement to the left or right of the direction of the wind

Match the term or person with the appropriate phrase. Gulf Stream

northern hemisphere, temperate latitudes, warm current

Match the term or person with the appropriate phrase. Kuroshio Current

northern hemisphere, temperate latitudes, warm current

An indirect method of measuring ocean current is the use of

radar altimeters

Records indicate that the ocean is warming faster in the Arctic polar regions than elsewhere. If that continues, a possible consequence could be __________.

slowing of deep ocean circulation, resulting in lower oxygen levels in deep water

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Please identify the word and/or phrase that does NOT fit the pattern. Enter only the letter of the answer (caps, no period, and not the full entry) in the field below. A. Australian drought B. decreased fish stock in coastal Peru C. flooding rains in southeastern U.S. D. Peruvian upwelling stops E. strong trade winds

strong trade winds

Sources of deep water in the ocean include all of the following except:

subtropical convergences

In comparison to wind energy, ocean currents can generate more clean, renewable energy because __________.

the density of water is greater than that of air

Deep ocean current movement is also known as:

thermohaline flow

Warm core rings and cold core rings are associated with:

western boundary currents

Upwelling occurs in all the following locations except:

where deep-ocean currents are formed