Exam 1

43 flashcardsby Makenna
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1
min/max latitude value
-90/+90
2
min/max longitude value
-180/+180
3
Where are max and min latitudes located?
North and South poles
4
Where are max and min longitudes located?
middle of Pacific, opposite the Prime Meridian
5
How many oceans?
one
6
How many ocean basins?
five
7
Names of ocean basins?
Atlantic, Arctic, Indian, Pacific, Southern
8
Question maps by asking:
What is the map trying to communicate?
How does it communicate that?
9
Features of our 3D world that can be distorted by 2D maps:
Area, Direction, Shape
10
Characteristics/location of Continental Shelf
shallow water, gentle slope, submerged extension of continent
11
Characteristics/location of Continental Slope
steep slope, between Continental Shelf and Abyssal Plane
12
Characteristics of Abyssal Plain
mostly flat, majority of the ocean
13
Avg. depth of ocean
4000m/4km
14
What are mid-ocean ridges?
underwater mountains
15
What causes mid-ocean ridges?
convergence
16
What causes trenches?
divergence
17
How do we determine depth of ocean/map the seafloor?
sonar
18
Wegener's Evidence for Continental Drift:
Shape of continents
Linear mountain ranges
Paleoclimate evidence (striations)
Fossil evidence
19
Who is the Father of Plate Tectonics?
Alfred Wegener
20
What was Wegener's theory missing?
a mechanism
21
How were mid-ocean ridges discovered and mapped?
Marie Tharp mapped Navy sonar data
22
What characterizes a "garbage patch"?
higher concentration of plastic
23
What is most of the plastic in garbage patches (what type)?
microplastics
24
Names of convection cells
Hadley, Ferrell, Polar
25
Where are Intertropical Convergence Zones (ITCZ)?
At the equator
26
Where are the Horse Latitudes?
+/-30 degrees
27
What are the results of temporal patterns in the flux of energy to our planet?
seasons
28
What is a latitudianl gradient?
Latitudinal differences in solar energy
29
What is the result of the latitudinal gradient in solar insolation on the planet?
It's colder at the poles
30
What causes the latitudinal gradient?
spheroidal shape of the planet
31
What causes convection cells?
energy surplus/deficit
32
What happens inside of a convection cell?
Warm air rises until it cools off and comes back down
33
How many convection cells in each hemisphere?
three
34
Between which latitudinal values are the Tradewinds?
0 and +/-30
35
Between which latitudinal values are the Westerlies?
+/-30 and +/-60
36
Between which latitudinal values are the Polar Easterlies?
+/-60 and +/90
37
Describe the latitudinal gradient in strength of the Coriolus Effect
strong near the poles, weak near the equator
38
EBC in Pacific
California Current
39
North Atlantic Gyre Equatorial Current
North Equatorial current
40
NAG WBC
Gulf Stream
41
NAG NBC
North Atlantic current
42
NAG EBC
Canary current
43
Features of EBC
cold, slow, wide, shallow
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