Effects on thermal structure Flashcards

1
Q

Nitrogen, Oxygen and Argon represent what % of the atmosphere?

A

99.97%

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2
Q

What is the definition of the upper limit and what height is is located at?

A

Where the composition of the atmosphere ceases to be constant. Located at 85KM

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3
Q

List the 3 properties of the atmosphere

A

Mobile, Occupies space and has weight

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4
Q

Half the weight of the atmosphere is located below:

A

5.5km or 18000ft

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5
Q

List the 4 most important components of the atmosphere

A

Water Vapor
Carbon Dioxide
Ozone
Impurities

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6
Q

Water vapor in the atmosphere is produced by what 2 things, mainly

A

Evaporation

Evapotranspiration

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7
Q

Carbon dioxide absorbs _____ amount of terrestrial radiation and a _____ amount of solar radiation

A

Large

small

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8
Q

Most of the atmospheric radiation is due to:

A

Ultraviolet solar radiation, free electrons and cosmic radiations on oxygen molecules

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9
Q

At what altitude is most of the ozone found?

A

between 15 and 40 km

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10
Q

Why is ozone so important

A

It stops ultraviolet solar radiation from reaching the earth

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11
Q

What do the atmospheric impurities consist of?

A

Mineral debris
Vegetable matter
bacteria
and particles of sea salt

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12
Q

What is water vapor’s main effect on radiation

A

Solar: A little absorption
Terrestrial: absorption

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13
Q

What is carbon dioxide’s effect on radiation:

A

Solar: Transmission
Terrestrial: Absorption

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14
Q

What is Ozone’s effect on radiation:

A

Solar: Absorption
Terrestrial: A little absorption in the PBL

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15
Q

What are atmospheric impurities’ effect on the atmosphere:

A

Solar: scattering
Terrestrial: Absorb and scatter

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16
Q

What is the relationship between the temperature of a substance and the amount of electromagnetic radiation it can emit

A

The higher the temperature the more radiation it will emit

17
Q

What are the 2 lower thermal subdivisions of the atmosphere and what is the transition zone that separates them?

A

Troposphere
Stratosphere
Tropopause

18
Q

The troposphere contains what % of the total weight of the atmosphere?

19
Q

What is the average altitude of the troposphere?

20
Q

What interaction does the stratosphere have with the troposphere?

A

It acts as a giant lid on the overturning of the tropopause

21
Q

what are 4 characteristics of the stratosphere?

A
  1. minute amounts of water vapor
  2. solid particles are rarely found there
  3. there are few clouds and no precipitation
  4. Most of the ozone is located there
22
Q

What 2 rare phenomena take place in the thermosphere?

A

Aurora, and noctilucent clouds

23
Q

Explain how the absorption of solar radiation by ozone affects the thermal structure of the atmosphere

A

Ultra violet radiation is transformed into heat during the destruction and creation of ozone. this is why the stratosphere temperature increase with altitude.

24
Q

state how the troposphere is heated or cooled

A

The combined effect of terrestrial radiation and conduction causes the PBL to be heated or cooled from below.

25
Define Albedo
The ratio of radiation reflected by a substance to the radiation striking this substance
26
List the 7 factors that affect the range of diurnal surface temperature variations
1. Angle of incidence 2. Albedo 3. Length of daylight 4. Heat capacity 5. Water vapor 6. Wind 7. Cloud cover
27
What are the 3 greenhouse gases?
Carbon dioxide water vapor ozone