In: Physics
Using complete sentences and the concepts discussed in Chapter 15 and 16 (including the type of heat transfer, frequency, wavelength, and energy) describe the greenhouse effect, and how it determines the temperature of Earth (or enclosed objects)
When the Sun's energy reaches the Earth it is partially absorbed in different parts of the climate system. The absorbed energy is converted back to heat, which causes the Earth to warm up and makes it habitable. But due to increase in population of the world the increase of CO2 level cause the increase of the temperature of the earth which is basically green house effect and the gases which causes such effect is known as the green house gases.
The Sun is the star present at the center of our planetary system. It is composed mainly of hydrogen and helium. In the Sun's interior, a thermonuclear fusion reaction converts the hydrogen into helium releasing large amounts of energy. The energy created by the fusion reaction is converted into thermal energy (heat) and raises the temperature of the Sun to levels that are about twenty times larger that of the Earth's surface. The solar heat energy travels through space in the form of electromagnetic waves enabling the transfer of heat through a process known as radiation.
Solar radiation occurs over a wide range of wavelengths. All bodies emit radiation and the wavelength (or frequency) and energy characteristics (or spectrum) of that radiation are determined solely by the body's temperature.
By absorbing the incoming solar radiation, the Earth warms up, like a black body and its temperature rises.
we can calculate the temperature of earth by calculating the energy flux on earth by simply using stefan Boltzmann law which is written as
is the Stefan constant
E is energy flux and T is temperature.
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