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Winds > Meteorology Study Guide > Flashcards

Meteorology Study Guide Flashcards

0
Q

Do land breezes happen in Day Time or Night Time?

A

Night time

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1
Q

What is wind speed calculated by?

A

An anemometer

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2
Q

What phases of matter are involved in the water cycle?

A

Gasses, liquids, and solids

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3
Q

Evaporation needs___ to happen.

A

Heat

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4
Q

Condensation needs to _____ energy to turn gasses into liquids.

A

Lose

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5
Q

What is dew point?

A

Dew Point the is the temperature air must cool to for the air to be saturated.

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6
Q

Warm air holds ____ water vapor than cold air.

A

More

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7
Q

How do I know how humid it will be?

A

The farther apart air temperature and dew point temperature, the less humidity.

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8
Q

Ingredients to a cloud?

A

Water vapor, condensation nuclei, and temperature decrease

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9
Q

What kind of clouds are there?

A

Cumulus( puffy), cirrus(wispy), stratus(layered)

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10
Q

What do you use to measure humidity?

A

A sling psychrometer

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11
Q

What is relative humidity?

A

Relative humidity compares the amount of water vapor in the air to how much it can hold in that temperature

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12
Q

What is infiltration?

A

When water soaks into the ground

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13
Q

What is percolation?

A

The moving water that is under ground

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14
Q

How do air masses get its temperature and humidity?

A

Air masses get its temperature and humidity from the land or water it came from.

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15
Q

Where does most of our weather come from?

A

Most weather comes from air masses.

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16
Q

How is wind created?

A

It is created from air pressure differences, and those differences are created by the unequal heating of the earth.

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17
Q

Why is the earth unevenly heated?

A

It is spherical, has seasons, differences in materials on earth, and different climate zones.

18
Q

Does wind move in a circle?

A

Wind isn’t moving in one big circle. The hot air rises at the equator and starts to cool. The cool air sinks at 30 degrees North and South. That causes a high pressure area near 30 degrees north and south. The sinking air at the pools gets warmer before getting to the equator and drops

19
Q

Why is the movement of wind curved?

A

Because of the earth’s rotation.

20
Q

What are global and local winds caused by?

A

They are caused by unequal heating and pressure differences.

21
Q

Where and how do local winds move?

A

Local winds move short distances and can blow from any direction.

22
Q

What are global winds apart of?

A

Global winds are part of a circular air pattern that moves across the earth.

23
Q

Why do trade winds curve?

A

They curve because of the Coriolis effect

24
Q

What are jet streams?

A

Narrow belts of high speed winds that blow in the higher parts of the troposphere and lower stratosphere.

25
Q

What are local winds dependent on?

A

They depend on the geographical features in that area.

26
Q

What can geography depend on?

A

Geography can be caused by temperature differences.

27
Q

What are the four types of local winds?

A

Land, sea, mountain, and valley.

28
Q

What is the main substance in our air?

A

Nitrogen

29
Q

What percent of the earths atmosphere is oxygen and nitrogen?

A

Oxygen- 21%
Nitrogen- 78%
Other- 1%

30
Q

What is air pressure?

A

A force of air pressing against a given area

31
Q

Is cool air more dense or less dense?

A

Cool air is more dense and has higher pressure

32
Q

How are winds and breezes named?

A

By the direction and material they come from

33
Q

What is the Coriolis effect?

A

The Coriolis effect happens as objects moving above a spinning earth curve to the northeast in the northern hemisphere.

34
Q

Which direction do westerlies move from?

A

West-east

35
Q

How are fronts named?

A

By the fastest moving air front. If cold air is moving faster, than its a cold front.

36
Q

Give two signs of an approaching warm front

A

Cold air before it, light precipitation (maybe)

37
Q

Two signs of an approaching cold front

A

Warm air before it, heavy precipitation (maybe)

38
Q

Weather in the U.S. Moves from ____ to _____

A

West to east

39
Q

What are the four factors that interact to make all types of weather?

A

Temperature, pressure, humidity, wind

40
Q

Why does unequal heating of the earth cause winds?

A

There are different temperatures in certain areas, so they have different densities. Those different densities cause winds.

41
Q

What layer of the atmosphere do we live in?

A

The troposphere

42
Q

What does the ozone layer do for us?

A

Protects us from the UV Rays

Winds (1 decks)

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