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Oceans Final
Test 3
93
Science
Undergraduate 2
04/26/2010

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Cards

Term
Wave base for a deep water wave is defined as:
Definition
1/2 the wave length
Term
The process of dispersion is controlled by:
Definition
wave length
Term
As a wave travels through an area of water, which of the following describes the motion of water molecules?
Definition
Travels in a circular path as the wave passes through
Term
The size of surface waves is controlled by:
Definition
Wind speed, fetch, and duration of wind
Term
Deep water waves include:
Definition
Capillary waves
Term
the best thing to do if you're caught in a Rip Current is to..
Definition
swim parallel to the beach to escape the current and let the waves bring you back into shore
Term
When a wave "feels bottom" it:
Definition
increases wave height
Term
When an area is subjected to a mixed tide, this means that:
Definition
successive high tides or low tides of significantly different heights through the cycle
Term
The following are examples of Western Boundary currents except:
Definition
North Atlantic Current
Term
The Ekman Spiral describes the flow response of a column of water to the wind. Those responses are:
Definition
A,B,C above
Term
North Atlantic Deep Water forms
Definition
North of Iceland and near Greenland
Term
Cape Cod, MA experiences what types of tides?
Definition
semi-diurnal 
Term
Water moving into an enclose basin due to an increase in sea level as a tidal crest approaches is called a ____
Definition
ebb current
Term
Because our weather in the US moves from west to east:
Definition
waves will be bigger on the west coast due to the large fetch
Term
Understanding waves and their resulting current patterns allows us to:
Definition
All of the above
Term
Greenhouse gases are gases that get excited by _____
Definition
infra red light that the Earth transmits
Term
An important natural source of atmospheric carbon dioxide is ______
Definition
volcanic activity
Term
When scientists measure the concentration of CO2 on Mauna Loa, they found a systematic increase superimposed in an annual variation. The annual variation occurs as a result of:
Definition
more photosynthesis in summer
Term
As a result of Global Warming:
Definition
ice cover in the Arctic ocean has decreased, tropical diseases have spread to higher latitudes, more intense weather phenomena have occured
Term
Ozone in the troposphere is generated by lighting or forest fires or:
Definition
high energy combustion
Term
Ozone in the stratosphere blocks _____ ultraviolet radiation coming from the sun.
Definition
very short wavelength
Term
Which of the following is true about ocean water?
Definition
sinks rapidly when very cold and rises slowly over large warm tropic areas
Term
Which of the following are considered primary sources of atmospheric methane?
Definition
decaying vegetation, intestinal gases from cows
Term
How do oceans affect carbon dioxide levels in the atmosphere?
Definition
by absorbing carbon dioxide from the atmosphere
Term
A tsunami can form by all of these except:
Definition
neap tides
Term
Which of the following exerts the most influence on the Earth's tides?
Definition
Moon
Term
The Earth-Moon system revolves around a point _____
Definition
between the Earth's core and crust
Term
The need for the Allies to make amphibious landings during WWII lead to the US Navy's establishment of the first research group to study waves
Definition
True
Term
Wave length is measured from the crest of one wave to the crest of the adjacent wave
Definition
True
Term
The earth is in thermal equilibrium with the carbon dioxide concentrations currently in the atmosphere
Definition
False
Term
Ozone is a covalently bonded molecule composed of 3 oxygen atoms. This molecule is very chemically stable
Definition
False
Term
Western boundary currents tend to be cold, slow, broad, and shallow. Eastern boundary currents tend to be hot, fast, narrow and deep
Definition
False
Term
During an ENSO event, the Peru current strengthens and upwelling increases bringing water rich in nutrients to the surface along the west coast of South Africa. This results in an increase in biological productivity.
Definition
False
Term
Tsunamis have the longest wave length of any waves
Definition
False
Term
The "equilibrium theory of tides" developed by Newton takes into account the depth and shape of the ocean basins
Definition
False
Term
Waves transfer vast amount of water from part of the ocean to far distant shores
Definition
False
Term
Reactive chlorine (CLO) helps form ozone
Definition
False
Term
Polar stratospheric clouds promote the formation of reactive chlorine and the destruction of ozone near the South Pole
Definition
True
Term
The sun exerts the most influence on the Earth;s tides because it has the largest body in the sun, moon, earth system
Definition
False
Term
The average global temperature has increased 0.4-0.8 degrees C during the last century
Definition
True
Term
There are numerous "amphidromic points: located throughout the world's ocean
Definition
True
Term
Melting of the Ross Ice Shelf in Antarctica would cause no rise in sea level.
Definition
True
Term
Coastlines subject to "diurnal tides" would be the best areas to locate "tidal electrical generating structures"
Definition
False
Term
Rip currents are more prevalent when waves are short and choppy
Definition
True
Term
Internal waves travel along the sharp salinity interface between dense surface water and less dense deep water.
Definition
False
Term
The largest rouge wave was measured by a US Navy destroyer to be 112 ft tall
Definition
True
Term
Tidal waves that propagate across the sea surface with the continued planetary influence that formed them are classified as forced waves
Definition
True
Term
Shallow water waves are only found in water less than 10 ft deep
Definition
False
Term
Wave height is always measured from the "still water" level
Definition
False
Term
Tsunami strike somewhere in the world on an average of once a year
Definition
True
Term
Any Tsunami generated by n earthquake is known as a "seismic sea wave"
Definition
True
Term
Tsunami occur as single, plunging waves of immense destructive force
Definition
False
Term
Major future tsunami may be triggered by potential landslides along the coasts of Hawaii in the Pacific ocean and La Palma-Canary islands in the arc
Definition
True
Term
Ozone is a molecule formed by 3 atoms of oxygen and occurs naturally in the atmosphere
Definition
True
Term
Ozone is necessary in the stratosphere to help block incoming UV rays, but it is a problem in the troposphere where it makes plants and animals sick
Definition
True
Term
Tides have wave lengths half the circumference of the earth
Definition
True
Term
Newton's gravitational model of tides (the equilibrium theory) deals primarily with the position of the earth, moon and sun and doesn't not allow for the influence of ocean depth or the position of the continental landmasses 
Definition
True
Term
The earth-moon system revolves around the venter of the Earth
Definition
False
Term
Earth's rotation beneath the tidal bulges caused by gravity and inertia produces high and low tides
Definition
True
Term
The tidal cycle is 24 hours and 50 minutes long because the moon rises 50 mins later each day
Definition
True
Term
When the moons position is north of the equator, the lunar tidal bulge is also located north of the equator
Definition
True
Term
Spring tides occur when the moon, earth, and sun form a right angle
Definition
False
Term
The amphidromic point is a no-tide point in the ocean around which the tidal crest rotates through once tidal cycle
Definition
True
Term
Tsunamis have the longest wavelengths.
Definition
False
Term
Tides are always shallow water waves even though their crests pass directly over the deepest parts of the ocean.
Definition
True
Term
A tidal bore is a steep wave moving upstream that is generated by the action of the tide crest in the enclosed area of a river mouth.
Definition
True
Term
The Antarctic Circumpolar Current is considered to be the largest gyre on Earth
Definition
False
Term
Counter clockwise spinning, cold water cored eddies from alongside the main body of the Gulf Stream as it meanders eastward from the coast of North America
Definition
True
Term
Undercurrents can exist below surface currents and even be flowing in exactly the opposite direction.
Definition
True
Term
Upwelling is responsible for concentrating nutrients along the west coast of the US.
Definition
True
Term
Ascending air cools as it expands.
Definition
True
Term
Moist, humid air is less dense than dry air. 
Definition
True
Term
The abrupt bulge of water driven ashore by a tropical cyclone or frontal storm is called a "storm surge."
Definition
True
Term
The "Coriolis effect" will deflect a cannon ball shot from the equator toward the North pole toward the right (clockwise). 
Definition
True
Term
The Ferrel atmospheric circulation cells are located between the Hadley Cells and the Polar Cells
Definition
True
Term
The meteorological equator coincides with the geographical equator.
Definition
False
Term
Monsoons occur as winds change directions due to the seasonal shift of the ITCZ and change of "Coriolis effect" from northern to southern hemisphere.
Definition
True
Term
Low atmospheric pressure at the center of a hurricane produces a dome of seawater that can reach a height of 1 meter in the open sea.
Definition
True
Term
Due to the "Coriolis effect" hurricanes rotate clockwise in the northern hemisphere. 
Definition
False
Term
Areaas where the winds are primarily vertical are areas where the horizontal winds tend to be calm.
Definition
True
Term
The release of latent heat during the phase change from water vapor to liquid water provides the energy to drive hurricanes.
Definition
True
Term
About 50% of the water in the world ocean is involved in surface currents.
Definition
False
Term
The eventual effect of wave action and erosion of a coastal area will be a straightening of the shoreline.
Definition
True
Term
Hadley cells (0-30 degrees latitude)
Definition
Trade winds
Term
Ferrel Cells (30-60 degrees latitude)
Definition
Westerlies
Term
Convergence of Polar and Ferrel cells (60 degrees latitude)
Definition
Jet stream
Term
ITCZ (Equatorial Trough) 
Definition
Doldrums
Term
convergence of Hadley and Ferrel Cells (30 degrees latitude)
Definition
Horse latitudes
Term
Western boundary current
Definition
The Australian current
Term
Eastern boundary current
Definition
The Canary current
Term
Transverse current
Definition
The North Pacific current
Term
Antarctic Circumpolar current
Definition
West wind drift
Term
Geostropic currents
Definition
Gyres
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