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Flashcards in Meteorology Deck (56):
1

The troposphere

The lowest densest part

Clouds and storms occur

As you rise through the troposphere temperature decreases

Bottom

2

The stratosphere

Very dry above troposphere

Temperatures increase bc of the ozone

Gas Osborne ultraviolet radiation

3

The mesosphere

Very clean
No water vapor
Temperature decreases
Above ozone and stratosphere

4

The thermosphere

Highest layer

Meteors disintegrate

Air pressure and water vapor decrease

5

Ultraviolet radiation is absorbed from the

Ozone

6

What did volcanoes release into the earth

Water vapor
carbon dioxide
Nitrogen

7

When was the ozone formed

When oxygen was available

8

What are greenhouse gases

Carbon dioxide
Methane
Water vapor

They trap heat close to the surface

9

Weather and climate

Climate is more predictable than weather

10

Solid moisture

Ice
Snow
Hail
Sleet
Frost

11

Liquid moisture is

Rain
Dew
Fog
Water droplets

12

Gaseous moisture is

Water vapor

13

What does water vapor cause

Humidity

14

What are clouds made of

Ice crystals and water droplets

15

What is transpiration

How plants release moisture into the air

16

Water cycle

Movement of moisture between the atmosphere, lithosphere and hydrosphere

17

Air pressure is caused by

The weight of the air pushing down

18

What does air pressure do when altitude increases

Decrease

19

High pressure

Good nice dry clear weather

20

Low pressure

Warm moist cloudy unstable weather

21

What is a barometer

What air pressure is measured with

22

What is a horizontal air movement

Wind

23

Anemometer

Measures wind speed

24

What is atmospheric temperature caused by

The absorption of heat from earth and from the sun

25

Weather conditions change due to

The movement of air masses

26

Air mass forms when

A body of air remains nearly stationary over a large section of earths surface

27

If an air mass forms Over water it will

Be moist and low pressure

28

If an air mass forms over land

It will be dry with high pressure

29

Continental tropical

Hot land
cT
Hot dry air

30

Continental polor

cP
Cold land
Cold dry air

31

Maritime polor

mP
Cool ocean
Cool moist air

32

Maritime tropical

mT
Warm ocean
Warm moist air

33

Prevailing winds and upper air currents

Determine the movement of air masses

34

Fronts

Boundaries between air masses

35

Cold fronts

Leading edge of cooler air

36

Warm fronts

The leading edge of warmer air

37

Precipitation is likely to occur at front boundary’s when

Warm moist air rises above the cooler air

38

What happens when a front passes

There is a change in the weather
It causes cloud formation, winds, precipitation, and air pressure and temperature changes

39

Thermometer

Measures air temperature

40

Barometer

Air pressure

41

Psychrometer

Humidity, dew point

42

Anemometer

Wind speed

43

Wind vane

Wind direction

44

Rain gauge

Amount of precipitation

45

What is weather monitored by

Weather balloons that send data to weather stations

46

Doppler radar

Detects
Tornados

47

Radar

Gives information about the intensity and speed of approaching storms

48

Satellite photographs

Show cloud cover

49

Computers

Collect and store large amounts of data and compare present weather data to past

50

Tornados

Rapidly rotating extreme low pressure storms. Extends down from a thunderstorm cloud. Made when cold air meets warm air. Hazardous winds with flying debris

People should seek low shelter or go under a sturdy structure

51

Thunderstorms

Form along a cold front
Lightning and heavy rain
Strong wind hail deadly lightning and the danger of flash floods


People should shelter indoors stay off electronics and stay away from flood areas

52

Ice storms/ blizzards

Heavy snow and winds
Can disrupt electric and phone services
Rainfall might freeze danger to frostbite and hypothermia

Stay indoors don’t drive have heat and food and water and medical supplies available

53

Hurricanes

Low pressure systems
Form over warm tropical oceans winds are greater than 74 mph
High winds high waves flooding from rain

Have food water and all necessary supplies and stay indoors go to emergency shelter if in a flood prone zone

54

Cold front

Mass of cold dense air moves in. Warmer air is pushed up (less dense) and forming precipitation

At the boundary heavy storms occur
Clouds at the front are cumulonimbus
Cool and clear skies come after

When occurring: heavy storms occur
Temperatures drop
Barometric pressure drops

55

Warm front

Mass of warm air moves in warm air moves above (less dense) moisture in warm air produces cloud covered skies

Weather that occurs at the bouncy is hours of rain or snow
Cirrus and stratus are formed at the front
After you will find warm weather
Front occurring: steady rain occurs
Temperature increases
Barometric pressure drops

56

Stationary front

Occurs when air masses meet and stop moving the air moves sideways whatever front advances first decides which it will be

Cirrus and stratus occur at the front
Weather you will find after is either a warm front of a cold front