exam 2 Flashcards

(64 cards)

1
Q

The sun emits the majority of its radiation in the form of ___ radiation

A

shortwave

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2
Q

The earth emits the majority of its radiation in the form of ___ radiation

A

longwave

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3
Q

The peak wavelength of energy from the earth is ___

A

10 um

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4
Q

The peak wavelength of energy from the sun is ___

A

0.5um

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5
Q

___ is the heat associated with changing water from a solid to a liquid

A

latent heat

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6
Q

when atmospheric water vapor condenses to form clouds, ___ is released and the atmosphere is ___

A

latent heat is released and the atmosphere is warmed

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7
Q

the 3 layers that describe the ocean’s vertical temperature structure are

A

surface mixed layer, thermocline, deep zone

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8
Q

varying sea surface salinity values fluctuate as a result of what 2 processes

A

evaporation and precipitation

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9
Q

the greenhouse effect is driven by the fact that greenhouse gases are

A

good absorbers of longwave radiation and poor absorbers of shortwave radiation

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10
Q

true or false: co2 and H2o are atmospheric selective absorbers that shelter us from the sun’s harmful incoming UV rays

A

false

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11
Q

what feature most specifically describes a rapid change in ocean temperature with depth

A

thermocline

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12
Q

the phase changes associated with ___ and ____ warm the atmosphere

A

condensation and freezing

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13
Q

coriolis deflects pressure gradient induced winds to the ___ in the southern hemisphere and ____ in the northern hemisphere

A

left in the southern, right in the northern

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14
Q

true/false: the inter-tropical convergence zone is a region of high pressure and arid (dry) conditions

A

false

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15
Q

according to the 3 cell general circulation model, surface winds are ___ directly south of the equator and ___ directly north of the equator

A

southeasterly south of the equator, northeasterly directly north of the equator

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16
Q

where are the highest values of sea surface salinity found in our global oceans

A

tropics 30 degrees N/S

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17
Q

according to the single cell circulation model, atmospheric circulation is driven by

A

the temperature contrast between the equator and poles

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18
Q

the inter-tropical convergence zone is a region of converging ___ surface winds

A

easterly

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19
Q

the inter-tropical convergence zone is a region of latitudinal ___ pressure

A

low

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20
Q

atmospheric surface winds are driven in the direction of __ pressure to __ pressure gradients

A

high pressure to low pressure

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21
Q

according to the 3 cell general circulation model, a latitudinal band of surface ___ pressure located at 60 degrees latitude

A

low

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22
Q

according to the 3 cell general circulation model, ___ vertical motion is expected in this location

A

rising

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23
Q

hurricanes rotate __ in the southern hemisphere

A

clockwise

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24
Q

hurricanes rotate ___ in the northern hemisphere

A

counterclockwise

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25
what are the names of the winds in the earth's tropical regions (30 degrees south to 30 degrees north)
NE and SE trades
26
according to the 3 cell generatl circulation model, the wettest regions of the earth should be found near
the equator and 60 degree latitude
27
according to the 3 cell generatl circulation model, the driest regions on earth should be found near
30 degrees N/S latitude and the polar regions
28
what is the name of the winds in the mid-latitude regions
westerlies
29
given your knowledge of the vertical motion of air in the 3 cell model, where would you expect to find our plants rainforests
equatorial region
30
the winter monsoon in india is associated with ___
dry conditions
31
the winter monsoon in india is associated with ___ wind flow
onshore to offshore
32
hadley cell vertical circulation consists of
rising air at the equator and sinking air at 30 degrees N/S
33
how do you directly describe the inter-tropical convergence zone
major latitudinal band of precipitation
34
western boundary currents carry what type of water in what direction
warm water poleward
35
ekman transport moves __ surface waters
warm
36
ekman transport moves warm surface waters to the __
left
37
ekman transport moves warm surface waters to the left in the ___ hemisphere
southern
38
ekman transport which results from the wind stress of the trades and westerlies in both northern and southern hemisphere ocean basins creates a __ of ___ surface water and ___ dynamic topography
creates a CONVERGENCE of WARM surface water and ELEVATED dynamic topography
39
coastal UPWELLING is a result of the ekman transport of ___ water which ___ surface water productivity
(upwelling) WARM water OFFSHORE which INCREASES surface water productivity
40
coastal DOWNWELLING is a result of the ekman transport of __ water ___ which ___ surface water productivity
(downwelling) WARM water ONSHORE which DECREASES surface water productivity
41
equatorial __ is a result of trade wind ___ and ekman transport surface ___ which ___ the productivity of the surface waters
equatorial UPWELLING is a result of trade wind CONVERGENCE and ekman transport surface DIVERGENCE which INCREASES the productivity of the surface waters
42
cyclonic hurricane wind rotation (northern hemisphere) over the ocean results in what 3 things
ocean surface divergence, thermocline elevation, and upwelling
43
gulf stream warm core eddies rotate ___ and ___ surface bioproductivity
gulf stream warm core eddies rotate CLOCKWISE and DECREASE surface bioproductivity
44
geostrophic flow travels ___ to dynamic topography iso-heights as a balance between what 2 forces
geostrophic flow travels PARALLEL to dynamic topography iso-heights as a balance between the coriolis force and the pressure gradient force
45
true/false: thermohaline circulation serves to oxygenate the deep ocean basis and is density driven
true
46
the phase velocity of shallow water waves is primarily a function of
depth
47
the period of a wave is defined as
the time measured between successive wave crests
48
the term "dispersion" is associated with ___ water waves because in that regime, wave speed is calculated primarily as a function of ___
the term "dispersion" is associated with DEEP water waves because in that regime, wave speed is calculated primarily as a function of WAVELENGTH
49
how is phase speed related to the group speed for a deep water wave
phase speed is 2x faster than group speed
50
what is shoaling
waves approaching the shore
51
wave refraction associated with shoaling is associated with ___ water waves
SHALLOW
52
wave refraction associated with shoaling is associated with SHALLOW water waves because in that regime, wave speed is calculated primarily as a function of ____
DEPTH
53
what is another term for wave speed
celerity
54
what is an embayment
a recess in a coastline forming a bay
55
as wave fronts approach an embayment, wave refraction leads to a ____ of wave crests and wave energy
divergence
56
surface sea ice formation (freezing)
extracts salt bring from the ice crystal structure which increases sea surface density
57
which of the atlantic ocean water masses above is antarctic immediate water
B
58
where can we find the highest density values in the TS diagram above
lower right
59
which of the following is not considered a disturbing force for waves
surface tension
60
tsunamis are classified as ___ water waves
shallow
61
tsunamis propagate across ocean basins at approximately __ mph
500
62
shallow water waves have __ orbits at the surface
elliptical
63
shallow water waves have elliptical orbits at the surface, which transition to ___ motion over the sediment at the bottom
back and forth
64
what type of breaking wave is associated with the steepest shoaling slope?
surging breaker