Extra Flashcards

(50 cards)

1
Q

What is temperature in the context of geography?

A

Temperature is the measure of the kinetic energy of air molecules.

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2
Q

How is temperature typically measured?

A

Temperature is measured in degrees Celsius or Fahrenheit using thermometers.

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3
Q

What factors influence temperature?

A

Latitude, altitude, proximity to water, and ocean currents.

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4
Q

What is the greenhouse effect?

A

The trapping of heat by gases in the Earth’s atmosphere, which warms the planet.

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5
Q

Why does temperature vary with altitude?

A

Temperature decreases with altitude due to lower air pressure and density.

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6
Q

What is latitude?

A

Latitude is the distance north or south of the equator, measured in degrees.

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7
Q

What is longitude?

A

Longitude is the distance east or west of the Prime Meridian, measured in degrees.

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8
Q

What is the significance of the equator?

A

It divides the Earth into the Northern and Southern Hemispheres.

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9
Q

What are the Tropics of Cancer and Capricorn?

A

They are located at 23.5°N and 23.5°S, respectively.

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10
Q

What is the International Date Line?

A

A line located at 180° longitude where the date changes by one day.

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11
Q

What is air pressure?

A

Air pressure is the force exerted by the weight of air above a surface.

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12
Q

How is air pressure measured?

A

Air pressure is measured in millibars (mb) or inches of mercury (Hg) using a barometer.

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13
Q

What causes variations in air pressure?

A

Temperature changes, altitude, and weather patterns.

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14
Q

What is a high-pressure system?

A

An area where air is descending, often associated with clear skies.

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15
Q

What is a low-pressure system?

A

An area where air is rising, often associated with cloudy and rainy weather.

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16
Q

What are radiation waves?

A

Energy that travels through space as electromagnetic waves.

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17
Q

What is shortwave radiation?

A

Radiation from the Sun, including visible and ultraviolet light.

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18
Q

What is longwave radiation?

A

Infrared radiation emitted by the Earth.

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19
Q

What is the role of radio waves in the atmosphere?

A

Used in communication, they are low-energy longwave radiation.

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20
Q

Why is understanding radiation important?

A

It helps explain energy transfer and climate patterns.

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21
Q

What is the surface energy budget?

A

The balance between incoming and outgoing energy at Earth’s surface.

22
Q

What is insolation?

A

Incoming solar radiation received by Earth’s surface.

23
Q

What are the main components of the energy budget?

A

Solar radiation, terrestrial radiation, latent heat, and sensible heat.

24
Q

What is albedo?

A

The reflectivity of a surface; lighter surfaces reflect more solar energy.

25
How does the surface energy budget influence climate?
It determines temperature and weather patterns.
26
What is the lapse rate?
The rate at which air temperature decreases with altitude.
27
What is the environmental lapse rate?
The average decrease in temperature with height, about 6.5°C per kilometer.
28
What is the dry adiabatic lapse rate?
The rate of cooling for unsaturated air, about 10°C per kilometer.
29
What is the moist adiabatic lapse rate?
The rate of cooling for saturated air, about 6°C per kilometer.
30
Why are lapse rates important?
They influence weather, cloud formation, and atmospheric stability.
31
What are the layers of the atmosphere?
Troposphere, stratosphere, mesosphere, thermosphere, and exosphere.
32
What occurs in the troposphere?
Weather and most atmospheric phenomena occur here.
33
What is the ozone layer and where is it located?
A layer in the stratosphere that absorbs UV radiation.
34
What are the main gases in the atmosphere?
Nitrogen (78%), oxygen (21%), and trace gases like CO2 and argon.
35
Why is the atmosphere essential for life?
It provides oxygen, regulates temperature, and blocks harmful radiation.
36
What are clouds?
Visible masses of water droplets or ice crystals in the atmosphere.
37
What are the main types of clouds?
Cumulus, stratus, cirrus, and nimbus.
38
What is the role of clouds in weather?
They influence temperature, precipitation, and energy balance.
39
What is cloud condensation nuclei?
Particles like dust that provide surfaces for water vapor to condense.
40
How do clouds form?
When air cools and water vapor condenses at the dew point.
41
What is an mT air mass?
Maritime tropical air mass, warm and moist.
42
What is a cT air mass?
Continental tropical air mass, hot and dry.
43
How do mT and cT air masses influence weather?
mT brings humidity and storms; cT causes dry, hot conditions.
44
Where do mT air masses originate?
Over warm oceans, such as the Gulf of Mexico.
45
Where do cT air masses originate?
Over hot, dry land areas, such as deserts.
46
What is the subsolar point?
The point on Earth's surface where the Sun is directly overhead.
47
What is the declination of the Sun?
The latitude where the Sun is directly overhead at noon.
48
What causes Earth's seasons?
The tilt of Earth's axis and its orbit around the Sun.
49
What is the significance of the solstices?
The longest and shortest days of the year.
50
What is the significance of the equinoxes?
Days when day and night are approximately equal in length.