Nobody downloaded yet

The Earth energy-balance - Term Paper Example

Comments (0) Cite this document
Earth Energy Balance Introduction: Sun is an essential source of energy for all the organisms on this planet and they benefit from it either directly or indirectly. There is little doubt that sun generate enormous amount of heat and radiation that travels a long distance to reach the earth…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER92.5% of users find it useful
The Earth energy-balance
Read TextPreview

Extract of sample
"The Earth energy-balance"

Download file to see previous pages This phenomenon is known as earth energy budget or earth energy balance. There are many factors that can deteriorate this balance and can contribute to significant changes in the climate of the earth. Earth Atmosphere: To understand how energy is received and returned to maintain energy balance it is important to understand what constitutes the atmosphere. There are five layers that surrounds the earth; exosphere, thermosphere, mesosphere, stratosphere and troposphere. Exosphere is the most outer space with particles so far apart that they do not affect the pathway of radiations from sun. Troposphere is the innermost layer that span from the earth surface to about 10 kilometers above. This layer is important as it provides the maximum reflection of radiation as discussed below. The following diagram (fig 1) demonstrates the inner three layers of earth atmosphere. Fig 1. Inner three layers of earth’s atmosphere Incoming radiation: Radiations from sun experience no interference as they travel undisturbed in space to reach the earth’s atmosphere. In the atmosphere, there are different layers with variable densities of gases and other molecules. When these radiations collide with these molecules they are deflected in many directions, a phenomenon known as scattering. An important concept to remember here is that these radiations that reach the earth have very small wavelength and not all but a small selective proportion of electromagnetic radiations can be scattered by molecular collision. (Ahrens, 2012). The rest of energy is absorbed by the earth system in various forms. Most of the energy is absorbed by the solid earth that increases the core and surface temperature. Part of the energy is absorbed by clouds, water vapors and other molecules present in the earth atmosphere. The following diagram (fig 2) represents the overall exchange budget of earth’s energy. Figure 2. Earth’s energy balance It is evident from the diagram that the total incoming energy absorbed by the earth system almost equals to the energy returned back to space thus maintaining energy balance. Outgoing radiations: The radiations received from sun can be returned back to space by two basic mechanisms as explained below. Reflection: Some of the energy that enters the atmosphere is reflected back as same short wavelength radiations identical to what was received from sun. Different component of earth’s atmosphere have variable ability to reflect these radiations and this property is known as ‘albedo’. Therefore, various surfaces have variable albedo. For example, deserts have high albedo because they are able to reflect about 40% of the radiations that reach them back into the space. On the other hand, ocean surfaces and rainforests have low albedo as they are able to reflect only a small proportion of radiations. (Ahrens, 2012). It is important to understand that those surfaces that have lower albedo tend to retain heat more than those with higher reflection abilities. By looking at fig 2, it can be observed that only a part of the radiations, about 30%, are reflected back into the space by earth surface, clouds and scattering process. There should be another way of returning the remaining 70% of the radiations which were absorbed by the atmosphere and the earth. Emission: Thermic emission is the most ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“The Earth energy-balance Term Paper Example | Topics and Well Written Essays - 2000 words”, n.d.)
Retrieved de
(The Earth Energy-Balance Term Paper Example | Topics and Well Written Essays - 2000 Words)
“The Earth Energy-Balance Term Paper Example | Topics and Well Written Essays - 2000 Words”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
The Impact of Social Awareness in Reducing Energy Consumption
This term paper has a topic of “minimizing energy consumption by developing social awareness in Kingdom of Saudi Arabia”and it is very important to present this idea. Kingdom of Saudi Arabia is known as the largest oil producer in the world and domestically its primary energy demand has been high as well.
11 Pages(2750 words)Term Paper
U.S. Policy on Energy
U.S policy on energy Executive summary There is high likelihood of the pipeline spillage which can lead to damage to the ecosystem. The pipeline will increase the pollution levels in the refineries. The pipeline will also increase the tar sands oils toxic to the rivers hence there will be high instances of diseases like cancer.
4 Pages(1000 words)Term Paper
Earth and space sciences
At the edges of these plates are what is known as volcanoes, openings in the surface of the earth that can at times spew hot ash, steam, lava, and molten magma that will obliterate anything and everything in their paths. They are aptly and appropriately named, given their designation long ago by the ancient Romans, who witnessed many eruptions on the island of Vulcano, and thus gave the name to the spitting mountains of molten lava in tribute to Vulcan, their god of fire and maker of weapons (Decker and Decker 7).
4 Pages(1000 words)Term Paper
For close to twenty years, the government of Finland has aimed at producing as much electricity as it can through the combined power plants and heat popularly known as CHP. In this regard, Finland ranks among the
6 Pages(1500 words)Term Paper
Is There Life Off Earth
The question -whether life, as it is defined on earth, is possible elsewhere in the universe- is crucially related to the condition whether this universe is able to ensure the same
5 Pages(1250 words)Term Paper
The Earth Energy-Balance
The temperature of the planet stays stable when there is an energy balance between how much shortwave radiation emitted by the sun is absorbed by the earth and then how much long wave is reflected back in the space.
4 Pages(1000 words)Term Paper
People who care about the Earth
Individuals like Dr. Anand Karve, who is the president of ARTI Biogas plant, have made major contributions. Dr. Anand developed a compact digester machine that produces biogas energy from food waste. The plant uses starchy
3 Pages(750 words)Term Paper
Energy and Balance
r the determination of the amount of oxygen, then the values gotten are computed and consequently the realization of the amount of energy in the substance. This is based on a number of factors of calorific value (Hervera, et al, 2008). The determination of the amount of energy
2 Pages(500 words)Essay
And the Earth Did Not Devour Him
…y no se lo tragó la tierra or And the Earth did not Devour him is one the most famous novels all over the world. This book was written
2 Pages(500 words)Term Paper
Energy conservation
It is indeed true that the usage of fossil fuels offers many advantages (Borowitz, 2004). First and foremost the fossil fuels happen to be easily accessible. Fossil fuels are found in abundance on the planet earth and can readily be extracted and used to meet the human energy needs (Borowitz, 2004).
6 Pages(1500 words)Term Paper
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Term Paper on topic The Earth energy-balance for FREE!
logo footer
Contact us:
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us