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
What are jet streams?
Narrow belts of high speed winds that blow in the higher parts of the troposphere and lower stratosphere.
25
What are local winds dependent on?
They depend on the geographical features in that area.
26
What can geography depend on?
Geography can be caused by temperature differences.
27
What are the four types of local winds?
Land, sea, mountain, and valley.
28
What is the main substance in our air?
Nitrogen
29
What percent of the earths atmosphere is oxygen and nitrogen?
Oxygen- 21% Nitrogen- 78% Other- 1%
30
What is air pressure?
A force of air pressing against a given area
31
Is cool air more dense or less dense?
Cool air is more dense and has higher pressure
32
How are winds and breezes named?
By the direction and material they come from
33
What is the Coriolis effect?
The Coriolis effect happens as objects moving above a spinning earth curve to the northeast in the northern hemisphere.
34
Which direction do westerlies move from?
West-east
35
How are fronts named?
By the fastest moving air front. If cold air is moving faster, than its a cold front.
36
Give two signs of an approaching warm front
Cold air before it, light precipitation (maybe)
37
Two signs of an approaching cold front
Warm air before it, heavy precipitation (maybe)
38
Weather in the U.S. Moves from ____ to _____
West to east
39
What are the four factors that interact to make all types of weather?
Temperature, pressure, humidity, wind
40
Why does unequal heating of the earth cause winds?
There are different temperatures in certain areas, so they have different densities. Those different densities cause winds.
41
What layer of the atmosphere do we live in?
The troposphere
42
What does the ozone layer do for us?
Protects us from the UV Rays