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The primary wavelenght of radiation emitted by earths surface are?
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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.
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.
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.
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.
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.
Would you sense reflected or emitted electromagnetic radiation when measuring the temperature of the ocean's surface?
If you were to measure reflected radiation then you would be measuring the temperature of the source of light (the sun)! So you need to look at the emmited radiation (measured during the night) to guage the temperature of the ocean's surface.
Why does the earth not get as hot as the Sun?
Because the Sun is the primary source of all energy in the Solar System.The effective surface temperature of the Sun is 5,778 KelvinEnergy received by Earth will be radiated back into space, both during the day and at night. The average temperature on Earth is such, that the amount of radiation received, and the amount of radiation emitted, is in equilibrium (on average).
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.
