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The primary wavelengths of radiation emitted by earths surface are what?
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Are the radiation wavelengths emitted by the sun longer than those emitted by the earth?
The radiation emitted by the Earth peaks around 10 microns, whereas that from the sun peaks under 1 micron. This is why Earth's radiation is referred to as longwave and solar radiation as shortwave, commonly. All objects emit radiation because all objects have a temperature. In fact, using Wien's Law you can very simply calculate the wavelength, lambda, of maximum emission: lamda(max) = c/T where c is a constant (2897) and T is the temperature of the emitting surface in Kelvin.
The amount of ultraviolet radiation hitting the Earth's surface is greatly reduced by which gas in the atmosphere?
Short wavelength radiation such as Ultraviolet fall to absorption spectrum band of Ozone. Ozone absorb UV and re-emitted the radiation in the range of infrared or thermal range radiation.
What heats earths atmosphere?
The sun heats the atmosphere. Solar radiation largely passes through the atmosphere and warms the surface of the earth. The earth then radiates heat up into the lower levels of the atmosphere where greenhouse gases warm. The warmed greenhouse gases then continue to radiate heat in all directions warming the atmosphere and again the earth's surface.
In what form is radiant energy reflected back into space?
Energy is re-radiated by the Earth as infrared (thermal) radiation.
What happens when radiation reaches earth's surface?
90% of radiation reaching the surface of the earth is absorbed! and 10% is reflected into space.
What best describes the primary wavelength of radiation emitted by Earth's surface?
they are longer than those emitted by the sun.
When does the earth emit terrestrial radiation?
Terrestrial radiation refers to heat emitted from the earth's atmosphere and surface.
What form is radiation emitted from the earth's surface back into the atmosphere?
Heat rises from the surface of the earth in the form of infra-red radiation.
When earths surface is heated it radiates most of the energy back into the atmosphere as ultraviolet radiation?
Not as ultraviolet; the radiation is emitted as infrared radiation.
Does the radiation emitted by earth's surface have longer or shorter wavelengths compared to solar radiation?
because they do not go to the same direction e.g the short-wave radiation heats the earth and the long-wave radiation heats the atmosphere.
What two principle absorbers of radiation emitted by Earth's surface are carbon dioxide and?
Water vapor.
If clouds absorb only a small amount of solar radiation how is Earth's atmosphere heated?
From the surface. Solar radiation is absorbed by the surface and emitted at a longer wavelength, which is essentially heat.
Are the radiation wavelengths emitted by the sun longer than those emitted by the earth?
The radiation emitted by the Earth peaks around 10 microns, whereas that from the sun peaks under 1 micron. This is why Earth's radiation is referred to as longwave and solar radiation as shortwave, commonly. All objects emit radiation because all objects have a temperature. In fact, using Wien's Law you can very simply calculate the wavelength, lambda, of maximum emission: lamda(max) = c/T where c is a constant (2897) and T is the temperature of the emitting surface in Kelvin.
Where does fusion occur mostly in stars?
In the core of the star, the heat then spreads out to the surface and is emitted as EM radiation
What is difference between emitted radiation heat and reflected radiation heat?
The magnitude of the incident angle with the normal of the reflection surface and reflection angle with the normal of the surface are the same. The direction of the reflection is away form the surface and the incident is toward the surface.
The two principle absorbers of radiation emitted by earth's surface are carbon doxide and?
water vapor and carbon dioxide.
What is the fraction of solar radiation that is reflected off a particular surface called?
There is no particular term. This is because the reflectivity of a surface varies across the electromagnetic spectrum so a surface which reflects a large proportion of blue wavelengths in sunlight may or may not reflect a similar proportion of red wavelengths.
