Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Meteorology > Unit 3 Section 1 > Flashcards

Unit 3 Section 1 Flashcards

1
Q

What is the graph called that describes the intensity of different wave lengths of radiation?

A

Emissions Spectra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What type of radiation does the sun emit?

A

Short-wave radiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the peak wave length emission for the sun?

A

.5 microns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the peak wave length emission for the earth?

A

10 microns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What the most important factor to how much radiation a body emits?

A

Temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How do we refer to a perfect emitter of radiation?

A

Blackbody

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How do we refer to an imperfect emitter of radiation?

A

Graybody

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does the Stefan-Boltzman law refer to?

A

The intensity of radiation based upon how the temperature raised to the fourth power

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is emissivity?

A

A way to describe how much radiation something can emit in relation to the maximum or a blackbody

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the Stefan-Boltman equation for graybodies?

A

I = εσT4 [W m-2]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is Wien’s law?

A

The wavelength of peak emission for any given body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Whats the threshold for shortwave and longwave radiation

A

4 microns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Warmer bodies tend to emit what type of radiation?

A

Shortwave radiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the 3 energy transfer mechanisms?

A

Conduction, Convection and Radiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is conduction?

A

The transfer of energy through direct contact of molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is convection?

A

The transfer of energy through the mixing of fluids or gasses?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is radiation?

A

The transfer of energy requiring no physical medium?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is the solar constant?

A

The amount of radiation the gets to earth from the sun calculated by the depletion of radiation in relation to distance squared

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the degree by which the earth’s tilt is offset by?

A

23.5 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the unit for energy flux

A

Watt / Meter ^ 2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What are the 3 atmospheric influences on insolation?

A

Absorption, Scattering, Transmission

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is insolation?

A

The amount of solar energy received by something

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is albedo?

A

The percentage of energy reflected by an object?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is reflection?

A

Energy being redirected and dispersed without being absorbed

22
Q

What is specular reflection?

A

A reflection of energy as an intense beam like a mirror

23
Q

What is scattering?

A

Energy deflected as dispersed energy into less intense beams

24
Q

What is diffuse radiation?

A

When gases in the atmosphere scatter radiation back into space and toward the surface

25
Q

What is direct radiation?

A

Radiation that goes directly to the surface and is different in intensity than scattered radiation

26
Q

What is diffuse reflection?

A

A reflection that redirect’s light in all directions

27
Q

What is Rayleigh Scattering?

A

Scattering of radiation by agents that are 1/10 the size of the wavelength
(Forward and backward scattering)

28
Q

What is Mie Scattering?

A

Scattering of radiation by agents that are the same size of the wavelength
(Forward scattering)

29
Q

What is Non-Selective Scattering?

A

Scattering of radiation equally by agents that are larger than the wavelengths, particularly clouds

30
Q

What is Transmission?

A

The amount of radiation that passes through the atmosphere and directly hits the earths surface. I.E. Energy that isn’t influenced

31
Q

What are the factors of how much solar radiation reaches the surface?

A

Amount of energy coming from the sun at a given point. I.E. Seasons and time of day and location on Earth
Amount of energy influenced such as scattering, reflection and absorption

32
Q

Why doesn’t the Earth permanently heat up from all the energy it intakes?

A

The Earth energy balance means that the Earth also gives off radiation in the form of shortwave radiation

33
Q

Where does the longwave radiation the Earth emits go?

A

It is largely absorbed by the atmosphere

34
Q

What are the primary absorbers of longwave radiation in the atmosphere?

A

Water vapor and CO2

35
Q

What is the atmospheric window?

A

The range of wavelengths not absorbed by the atmosphere

36
Q

What is the exception to the atmospheric window?

A

Clouds, they absorb all longwave radiation including that within the atmospheric window

37
Q

What is the laminar boundary layer?

A

It is the thin temperature gradient above a surface that is warming a gas or liquid

38
Q

What are the 2 different types of convection?

A

Free convection, Forced convection

39
Q

What is free convection?

A

Mixing related to buoyancy

40
Q

What is forced convection?

A

Convection initiated by eddies and other disruptions to smooth, uniform flow

41
Q

What are the two types of energy convection transfers?

A

Sensible heat, Latent Heat

42
Q

What is sensible heat?

A

Energy/heat that we feel and SENSE

43
Q

What is latent heat?

A

Energy/heat required to change phases

44
Q

What is the greenhouse effect?

A

The process by which the atmosphere and the clouds let in shortwave solar radiation but trap in longwave Earth radiation which is then re-radiated back to the clouds and that process repeats.

45
Q

What is inside of a maximum thermometer?

A

Mercury

46
Q

What is inside of a minimum thermometer?

A

Alcohol

47
Q

What is wiens law equation?

A

λ max = b (constant of proportionality) / t (absolute temperature)

48
Q

What is the planetary albedo?

A

30%

48
Q

What is Wind Chill Temperature?

A

It indicates how cold a particular temperature feels given a certain wind speed

49
Q

What is Heat index?

A

it indicates how hot a partcicular temperature feels given a certain atmospheric moisture content

49
Q

What is MRT?

A

Mean Radiant Temperatures indicates the comfort level when radiative considerations are accounted for.

50
Q

What is Wet-bulb Globe Temperature?

A

Combines the heat index and MRT

51
Q

What is the daily mean?

A

Average of maximum and minimum temperatures for the day

52
Q

What is the daily temperature range?

A

It is obtained by subtracting the minimum temperature from the maximum temperature

53
Q

What is the monthly mean?

A

The sum of all daily means/number of days.

54
Q

What is the annual mean?

A

The sum of all monthly means/number of months

Meteorology (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions