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E&E > Meteorology pt 2 Test > Flashcards

Meteorology pt 2 Test Flashcards

(55 cards)

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1
Q

what is the pressure during a cyclone?

A

low

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2
Q

what is the pressure during an anticyclone?

A

high

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3
Q

what is the weather during a cyclone?

A

wet, stormy and cloudy

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4
Q

what is the weather like during an anticyclone?

A

clear, calm, fairly dry

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5
Q

What accompanies a thunderstorm?

A

lightning, thunder, rain

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6
Q

what type of clouds create thunderstorms?

A

cumulonimbus

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7
Q

ALL THUNDERSTORMS PRODUCE…

A

lightning

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8
Q

what happens when its lightning?

A

air expands explosively; expansion creates thunder

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9
Q

what time of the year do tornados occur?

A

spring and summer; usually in the late afternoon

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10
Q

funnel is a mixture of..

A

clouds and dust

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11
Q

what is the most damaging part of hurricane?

A

storm surge

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12
Q

how are hurricanes measured?

A

using the saffir-simpson scale

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13
Q

what is the weather in the eye of the hurricane?

A
  • low pressure
  • higher temps
  • calmer winds
  • winds most violent just outside of eye
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14
Q

Air pressure is affected by…

A
  • temperature
  • water vapor
  • elevation
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15
Q

hurricanes are ___ pressure systems

A

low

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16
Q

rising air forms..

A

clouds and precipitation

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17
Q

sinking air produces..

A

clear skies

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18
Q

wind vane always points..

A

into wind

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19
Q

what is wind the result of?

A

horizontal differences in air pressure

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20
Q

Air flows from….

A

areas of higher pressure to areas of lower pressure

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21
Q

the unequal heating of Earth’s surface generates what?

A

pressure difference

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22
Q

what are the 3 factors combined to control wind?

A
  • pressure differences
  • Coriolis effect
  • friction
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23
Q

when is friction important?

Study These Flashcards
A

when it is close to the surface

24
Q

winds in the Northern hemisphere flow to the..

25
winds in the Southern hemisphere flow to the ..
left
26
what is the height of jet streams?
15-20 km
27
what are ocean currents caused by?
winds and Coriolis effect
28
are geostrophic winds hot or cold?
cold asf
29
are polar easterlies constant or not constant?
not constant
30
A major El Niño episode can cause..
extreme weather in many different parts of the world
31
what is the three letter system of koppen climate classification
first letter- temperature second letter- precipitation third letter- more specific temperature
32
if the air mass originates over the ocean:
humid air mass(maritime)(m)
33
if the air mass originates over land
dry air mass(continental)(c)
34
cold air
cool air mass(Polar)(P)
35
warm air
warm air mass(Tropical)(T)
36
how to locate fronts
- strong temp gradients - CCW rotation - Lower pressure - precipitation and clouds
37
how do you draw a stationary front?
alternating red semi-circles and blue triangles pointing opposite ways
38
how do you draw an occluded front?
purple line with alternating semi-circles and triangles
39
how do you draw a warm front?
red line with red semi-circles pointing in the direction of the front's movement
40
a warm front brings what?
brings less severe weather over a larger area
41
how do you draw a cold front?
blue line with blue triangles pointing in the direction of the front's movement
42
a cold front brings what?
brings strong storms with clear days following
43
what does a radiosonde do?
sends signals about air pressure, temp humidity
44
radiosonde contains..
other instruments: anemometer, barometer and wind vane
45
trade winds in the N. hemisphere deflect to the..
right
46
doldrums are close to where?
equator
47
trade winds in the S. hemisphere deflect to the..
left
48
N and S polar easterlies deflect to the..
left
49
N and S westerlies deflect to the..
right
50
anemometer units
mph,kph, knots
51
barometer units
mb (milobars) and atm (atmospheres)
52
how to find the pressure if the #is less than 500
place a ten in front and add a decimal in front of the ones place ex: 225--> 1022.5
53
how to find the pressure if the #is greater than 500
place a 9 in front and add a decimal in front of the ones place ex: 687--> 968.7
54
on a climograph, precipitation is the..
bar graph
55
on a climograph, the temperature is the..
line graph

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