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Geography > Wind Currents/air masses/ ocean currents/ waether > Flashcards

Wind Currents/air masses/ ocean currents/ waether Flashcards

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0
Q

Warm air….

A

Rises

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1
Q

Cold air…….

A

Falls

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2
Q

Global wond pattern
North pole
Equator

A

North pole - falls

Equator - rises

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3
Q

Low / high pressure
Equator
30°s
30°n

A

Equator - low pressure
30°s - high pressure
30°n - high pressure

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4
Q

The coriolis effect
Northern hemisphere
Southern hemisphere

A

North - deflected right ( as of walking down from yhe north

Southern - deflected left

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5
Q

Wind is …

A

Moving air, the faster the air moves the more wind

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6
Q

Winds named …..

A

After the direction they come from

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7
Q

Prevailing winds….

A

Wind that is most common in a certain area

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8
Q

Ocean currents

A

Giant rivers that flow through the oceans

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9
Q

3 causes for ocean belts

A

1) unequal heating : @ equater where there us direact sunlight the water expands about 10mm, the water the flowsa downhill causing a current
2) the earth rotating: because yhe earth spins, currents are deflected to the right
3) prevailing winds : friction between global winds and surface of earth ( some currents follow global wind patterns)

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10
Q

Air masses

A

Large bodies of air with the same temperature, pressure + moisture

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11
Q

Maritime air masses

A 
Brings rain ( comes from oceans)
Summer - cold/mild 
Winter - warm/mild
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12
Q

Continental air masses

A

Dry ( comes from continents)
Summer- warm
Winter- cold

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13
Q

Polar air masses

A

Cold ( comes from north pole)
Summer- cold/wet
Winter- cold/wet

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14
Q

Tropical

A

Warm ( from equator)
Summer- warm/dry
Winter- warm/dry

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15
Q

Element - temperature
Instrument
Expression

A

Instrument - max/min thermometer

Expression - °F or °C

16
Q

Element - percipitation
Instrument
Expression

A

Instrument - rain gauge

Expression - mm

17
Q

Element - humidity
Instrument
Expression

A

Instrument - wet/dry bulb thermometer

Expression - % saturation

18
Q

Element - wind speed / direction
Instrument
Expression

A

Instrument - anemometer * wind speed Wind came* direction

Expression - km/h and N/S/E/W

19
Q

Element - sunshine
Instrument
Expression

A

Instrument - campbell stones sunshine thermometer

Expression - hours

20
Q

Element - pressure
Instrument
Expression

A

Instrument - barometer

Expression - mb ( millibars )

21
Q

Water….

A

The state of the atmosphere at any place or time

22
Q

Places of equal temperature marked with…. On a map

A

Isotherms

23
Q

Places of equal rainfall marked by…. On a map

A

Isoyets

24
Q

Places of equal pressure marked by…. On a map

A

Isobars

Geography (3 decks)

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