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Meteorology
Earth Science
65
Meteorology
9th Grade
05/09/2010

Additional Meteorology Flashcards

 


 

Cards

Term
What causes the coriolis effect?
Definition
Earth’s rotation from east to west
Term
Which way does it cause particles to move in each hemisphere?
Definition
Northern Hemisphere- Right
Southern Hemisphere- Left
Term
What is weather?
Definition
Current state of the atmosphere
Term
Imbalances in earth’s____ ____ help create the weather?
Definition
Heat energy
Term
What is the difference between weather radar and weather satellite?
Definition
Radar-Tracks precipitation; Emits electromagnetic waves
Satellite-Takes photos;Tracks clouds;Infrared imagery
Term
A ____ forecast relies on numerical data.
Definition
Digital
Term
Low-pressure systems are usually associated with what type of weather?
Clouds and rainy weather
Sometimes wave cyclones
Definition
Clouds and rainy weather;Sometimes wave cyclones
Term
What is the Doppler Effect?
Definition
Change in wave frequency that occurs in energy as that energy moves towards or away from an observer
Example
Police siren
Term
What is a station model?
Definition
A record of weather data for an individual site at a particular time
Term
Thermometer
Definition
Temperature
Term
Ceilometer
Definition
Height of a cloud
Term
Barometer
Definition
Air pressure
Term
Anemometer
Definition
Wind speed
Term
Rain Gauge
Definition
Rainfall
Term
Hygrometer
Definition
Relative humidity
Term
What are isopleths?
Definition
Lines that connect points of equal or constant value
Term
What is air mass modification?
Definition
The exchange of heat or moisture with the surface over which an air mass travels
Term
What are isotherms?
Definition
Lines of equal temperature
Term
The air generally ____ above areas of surface low pressure.
Definition
Rises
Term
The air generally ____ above areas of surface high pressure.
Definition
Sinks
Term
Air masses are best characterized by similar properties of ____ and ____ in any horizontal direction.
Definition
Temperature
Moisture content
Term
What is stability?
Definition
Ability of an air mass to resist rising
Term
An approaching front brings ____ weather.
Definition
Rainy
Term
Which way do air masses move across the United States?
Definition
West to east
Term
What type of air masses would arrive form the Gulf of Mexico?
Definition
Maritime topical
Term
Where do maritime air masses originate?
Definition
Over water
Term
If an air mass stayed over the Sahara Desert, what type of characteristics would it have?
Definition
Hot and dry
Term
What is the wind system that lies between the poles and about 60 degrees latitude in both hemispheres?
Definition
polar easterlies
Term
What are the characteristics of maritime polar?
Definition
cold humid
Term
What are the characteristics of maritime tropical?
Definition
humid, warm
Term
What are the characteristics of continental tropical?
Definition
cold and dry
Term
What are the characteristics of continental polar?
Definition
dry cold
Term
What are jet streams?
Definition
narrow bands of fast, high altitude, westerly winds
Term
Winds occurring between 30 degrees north and south latitudes and the equator?
Definition
trade winds
Term
Winds that flow between 30 and 60 degrees north and south latitudes?
Definition
prevailing westerlies
Term
What type of front is associated with an advancing warm air mass displacing a cold air mass?
Definition
warm front
Term
What is the type of front where cold air mass displaces a warm air mass and forces the warm air to rise steeply?
Definition
Cold Front
Term
What is the type of front where two air masses with similar temperatures and pressures meet, and neither advances into the other's territory?
Definition
stationary front
Term
What is the type of front where a warm air mass is squeezed upward between two cold air masses?
Definition
occluded fronts
Term
large parcel of air
Definition
air mass
Term
air mass that originates over oceans
Definition
maritime
Term
front that
Definition
Term
front that brings in steady rain
Definition
warm
Term
measures air pressure
Definition
barometer
Term
0-30 degree winds
Definition
trade winds
Term
pressure belt at the equator
Definition
doldrums
Term
effect that is used in radar
Definition
doppler effect
Term
front that brings in thunderstorms
Definition
cold front
Term
deflection of winds
Definition
coriolis effect
Term
relies of numerical data
Definition
digital forecast
Term
cold region
Definition
polar
Term
study of atmospheric phenomena
Definition
meteorology
Term
connect points of equal pressure
Definition
isobars
Term
lines of equal temperature
Definition
isotherms
Term
the tropics get more ____ sunlight
Definition
direct
Term
strong low pressure system
Definition
wave cyclones
Term
current state of the atmosphere
Definition
weather
Term
imagery that detects thermal energy
Definition
infrared
Term
air mass changes
Definition
modification
Term
air moves inward and upward
Definition
low pressure
Term
fair weather
Definition
high pressure
Term
long-term variations in weather
Definition
climate
Term
isobars are far apart
Definition
light wind
Term
balloon-borne package of sensors
Definition
radiosode
Term
measures height of clouds
Definition
ceilometer
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