0
Of all the incident solar radiation what percentage is absorbed by the earth and the atmosphere?
Wiki User
∙ 8y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the percentage of solar radiation reflected from a surface?
This is called the "albedo." It is the ratio of reflected light compared to incident light, and depends on the surface material and its condition (e.g. snow, grassland).
What is an absorption nebula?
An absorption nebula is a dark nebula, which absorbs all incident radiation without reemission.
What is a measure of reflected light?
You could simply say 'the percentage of incident light which is not absorbed by the surface'. The technical term, used mainly in astronomy, is albedo.
The solar constant is an expression of?
The quantity of solar radiation incident normally per minute on 1 cm2 surface of a perfectly black body on the Earth.
How does a nebula work?
i do know that its a diffuse mass of interstellar dust or gas or both, visible as luminous patches or areas of darkness depending on the way the mass absorbs or reflects incident radiation. Hope that helps. :)
What is an absorptance?
An absorptance is a ratio measuring absorbed radiation and incident radiation - to show how well a particular surface absorbs radiation.
How much solar energy is reflected by clouds and other particles?
About 19% of incoming solar radiation is absorbed by clouds and the atmosphere.Incoming solar radiation: 100%Reflected by the atmosphere: 6% : Absorbed by the atmosphere: 16%Continuing incoming solar radiation: 78%Reflected by clouds: 20% : Absorbed by clouds: 3%Continuing incoming solar radiation: 55%Reflected by the earth's surface: 4% : Absorbed by the earth's surface (lands and oceans): 51%Source: (NASA)
What does A higher albedo mean?
A higher albedo means that more of the incident radiation is reflected, and less of it is absorbed.
What influences the amount of solar energy absorbed at the earths surface?
There are many factors associated with the absorption of solar energy based primarily on the wavelength or nature of the solar energy under consideration. For example, neutrinos are mostly not absorbed at all. "Albedo" is used to express how much incident radiation from the Sun is reflected or absorbed, and the albedo changes for different wavelengths of light (electromagnetic radiation); it is a specific term of "reflectivity." In turn, albedo is determined by the cloud cover, terrestrial terrain, composition of the atmosphere etc. Longwave (red-shift) radiation absorption may be very different than UV (shortwave), and some wavelenghts may "bounce" completely, and very little of the incident radiation may be absorbed on the Earth's surface.
What most influences the amount of solar energy absorbed at earth's surface?
There are many factors associated with the absorption of solar energy based primarily on the wavelength or nature of the solar energy under consideration. For example, neutrinos are mostly not absorbed at all. "Albedo" is used to express how much incident radiation from the Sun is reflected or absorbed, and the albedo changes for different wavelengths of light (electromagnetic radiation); it is a specific term of "reflectivity." In turn, albedo is determined by the cloud cover, terrestrial terrain, composition of the atmosphere etc. Longwave (red-shift) radiation absorption may be very different than UV (shortwave), and some wavelenghts may "bounce" completely, and very little of the incident radiation may be absorbed on the Earth's surface.
What is the definition of radiation use efficiency and light use efficiency?
radiation use efficiency is the percentage part of incident solar radiation spectrum being utilized by plants.
What is an absorption coefficient?
An absorption coefficient is a measure of the absorption of electromagnetic radiation as it passes through a specific substance - calculated as the fraction of incident radiation absorbed by unit mass or unit thickness.
What is the percentage of solar radiation reflected from a surface?
This is called the "albedo." It is the ratio of reflected light compared to incident light, and depends on the surface material and its condition (e.g. snow, grassland).
Why is it cold at the poles?
The answer to this question involves the angle at which solar radiation is intercepted by the earth's atmosphere. The rule is that if solar radiation is incident perpendicular to the atmosphere the solar radiation that is incident on the earth's surface will be greatest. Incoming solar radiation at the poles comes in at a sharper angle and is spread over a greater surface area of atmosphere than at the equator. In this way, the poles have more of an atmospheric filter and experience less radiation per area time and hence have lower average temperatures.
How much of the ultraviolet radiation is absorbed by oxygen and ozone?
It is likely that ozone only absorbs a tiny percentage of the UV-C incident on Earth's atmosphere. Likely the majority of UV-C is absorbed by nitrogen and oxygen in the atmosphere, and that in the lower stratosphere (where ozone is produced).
How does opaqueness affect radiation?
If you are referring to visible light, which lies in the wavelength range from 380 to 740 nm of the electromagnetic radiation spectrum, an opaque body won't allow light to travel trough it. When light hits the surface of the body the light can be, reflected, absorbed, or part of it reflected and the rest absorbed. In the case you are referring to thermal radiation which lies in the wavelength range from about 1 x 102 to 1 x 105 nm, an opaque body to thermal radiation will behave the same. In this later case the way the body's surface will behave is given by the surface properties reflectivity and absorptivity, which are the fraction of the incident radiation that is reflected and absorbed by the surface respectively.
What is incident radiation?
Radiation is a general term for the energy transmitted through space.Incident radiation is a term used when referring to the radiation hitting a specific surface. For instance, the incident radiation for a solar panel is the total amount of radiation hitting the surface of the solar panel. This is in contrast to direct beam radiation which refers to only that radiation which arrives in a strait line from the sun. (It differs in that total incident radiation includes additionally the component of diffuse radiation.)
