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E&E > Meteorology pt 2 Test > Flashcards

Meteorology pt 2 Test Flashcards

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?

A

when it is close to the surface

24
Q

winds in the Northern hemisphere flow to the..

A

right

25
Q

winds in the Southern hemisphere flow to the ..

A

left

26
Q

what is the height of jet streams?

A

15-20 km

27
Q

what are ocean currents caused by?

A

winds and Coriolis effect

28
Q

are geostrophic winds hot or cold?

A

cold asf

29
Q

are polar easterlies constant or not constant?

A

not constant

30
Q

A major El Niño episode can cause..

A

extreme weather in many different parts of the world

31
Q

what is the three letter system of koppen climate classification

A

first letter- temperature
second letter- precipitation
third letter- more specific temperature

32
Q

if the air mass originates over the ocean:

A

humid air mass(maritime)(m)

33
Q

if the air mass originates over land

A

dry air mass(continental)(c)

34
Q

cold air

A

cool air mass(Polar)(P)

35
Q

warm air

A

warm air mass(Tropical)(T)

36
Q

how to locate fronts

A
  • strong temp gradients
  • CCW rotation
  • Lower pressure
  • precipitation and clouds
37
Q

how do you draw a stationary front?

A

alternating red semi-circles and blue triangles pointing opposite ways

38
Q

how do you draw an occluded front?

A

purple line with alternating semi-circles and triangles

39
Q

how do you draw a warm front?

A

red line with red semi-circles pointing in the direction of the front’s movement

40
Q

a warm front brings what?

A

brings less severe weather over a larger area

41
Q

how do you draw a cold front?

A

blue line with blue triangles pointing in the direction of the front’s movement

42
Q

a cold front brings what?

A

brings strong storms with clear days following

43
Q

what does a radiosonde do?

A

sends signals about air pressure, temp humidity

44
Q

radiosonde contains..

A

other instruments: anemometer, barometer and wind vane

45
Q

trade winds in the N. hemisphere deflect to the..

A

right

46
Q

doldrums are close to where?

A

equator

47
Q

trade winds in the S. hemisphere deflect to the..

A

left

48
Q

N and S polar easterlies deflect to the..

A

left

49
Q

N and S westerlies deflect to the..

A

right

50
Q

anemometer units

A

mph,kph, knots

51
Q

barometer units

A

mb (milobars) and atm (atmospheres)

52
Q

how to find the pressure if the #is less than 500

A

place a ten in front and add a decimal in front of the ones place
ex: 225–> 1022.5

53
Q

how to find the pressure if the #is greater than 500

A

place a 9 in front and add a decimal in front of the ones place
ex: 687–> 968.7

54
Q

on a climograph, precipitation is the..

A

bar graph

55
Q

on a climograph, the temperature is the..

A

line graph

E&E (17 decks)

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