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
