Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Meteorology > Unit 3 Section 1 > Flashcards

Unit 3 Section 1 Flashcards

(59 cards)

Start Studying
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?

Study These Flashcards
A

Energy being redirected and dispersed without being absorbed

22
What is specular reflection?
A reflection of energy as an intense beam like a mirror
23
What is scattering?
Energy deflected as dispersed energy into less intense beams
24
What is diffuse radiation?
When gases in the atmosphere scatter radiation back into space and toward the surface
25
What is direct radiation?
Radiation that goes directly to the surface and is different in intensity than scattered radiation
26
What is diffuse reflection?
A reflection that redirect's light in all directions
27
What is Rayleigh Scattering?
Scattering of radiation by agents that are 1/10 the size of the wavelength (Forward and backward scattering)
28
What is Mie Scattering?
Scattering of radiation by agents that are the same size of the wavelength (Forward scattering)
29
What is Non-Selective Scattering?
Scattering of radiation equally by agents that are larger than the wavelengths, particularly clouds
30
What is Transmission?
The amount of radiation that passes through the atmosphere and directly hits the earths surface. I.E. Energy that isn't influenced
31
What are the factors of how much solar radiation reaches the surface?
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
Why doesn't the Earth permanently heat up from all the energy it intakes?
The Earth energy balance means that the Earth also gives off radiation in the form of shortwave radiation
33
Where does the longwave radiation the Earth emits go?
It is largely absorbed by the atmosphere
34
What are the primary absorbers of longwave radiation in the atmosphere?
Water vapor and CO2
35
What is the atmospheric window?
The range of wavelengths not absorbed by the atmosphere
36
What is the exception to the atmospheric window?
Clouds, they absorb all longwave radiation including that within the atmospheric window
37
What is the laminar boundary layer?
It is the thin temperature gradient above a surface that is warming a gas or liquid
38
What are the 2 different types of convection?
Free convection, Forced convection
39
What is free convection?
Mixing related to buoyancy
40
What is forced convection?
Convection initiated by eddies and other disruptions to smooth, uniform flow
41
What are the two types of energy convection transfers?
Sensible heat, Latent Heat
42
What is sensible heat?
Energy/heat that we feel and SENSE
43
What is latent heat?
Energy/heat required to change phases
44
What is the greenhouse effect?
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
What is inside of a maximum thermometer?
Mercury
46
What is inside of a minimum thermometer?
Alcohol
47
What is wiens law equation?
λ max = b (constant of proportionality) / t (absolute temperature)
48
What is the planetary albedo?
30%
48
What is Wind Chill Temperature?
It indicates how cold a particular temperature feels given a certain wind speed
49
What is Heat index?
it indicates how hot a partcicular temperature feels given a certain atmospheric moisture content
49
What is MRT?
Mean Radiant Temperatures indicates the comfort level when radiative considerations are accounted for.
50
What is Wet-bulb Globe Temperature?
Combines the heat index and MRT
51
What is the daily mean?
Average of maximum and minimum temperatures for the day
52
What is the daily temperature range?
It is obtained by subtracting the minimum temperature from the maximum temperature
53
What is the monthly mean?
The sum of all daily means/number of days.
54
What is the annual mean?
The sum of all monthly means/number of months

Meteorology (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions