Nobody downloaded yet

The Earth energy-balance - Term Paper Example

Comments (0) Cite this document
Summary
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 PAPER98.1% 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
  • CHICAGO
(“The Earth energy-balance Term Paper Example | Topics and Well Written Essays - 2000 words”, n.d.)
Retrieved de https://studentshare.org/physics/1463705-the-earth-energy-balance
(The Earth Energy-Balance Term Paper Example | Topics and Well Written Essays - 2000 Words)
https://studentshare.org/physics/1463705-the-earth-energy-balance.
“The Earth Energy-Balance Term Paper Example | Topics and Well Written Essays - 2000 Words”, n.d. https://studentshare.org/physics/1463705-the-earth-energy-balance.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF The Earth energy-balance

Evaporator Mass and Energy Balance, and Mechanical Design

...is to be undertaken in the evaporation plant to assess hazard and operability standards (HAZOP study of the evaporation plant). This report details the results of the HAZOP study. It covers mass and energy balance, safety consideration, environmental assessment report, economic appraisal in accordance with the requirements. Engineering line diagram, control system and equipment design is to be updated to reflect the outcome of the HAZOP exercise. The participants had a significant amount of experience in the design and operation of evaporation plants. Therefore, the hazards were generally well-known as well as the required control measures to reduce risk to within limits or acceptable levels as stated by...
26 Pages(7500 words)Essay

Balance

...Due Environmental Studies: Balance Question Explain why a keystone species is important in maintainingthe balance in an ecosystem and how their removal can affect a whole ecosystem In the construction of buildings a keystone is a foundational stone that holds all of the other stones in place, a keystone species is quite similar. A keystone species in nature do exactly that for their ecosystems; their presence helps maintain the balance in that system. Their presence or absence within their environments has a significant impact with, sometimes, negative consequences. For example, Beavers are a keystone species, because their damn-building changes the water ways within the environment they...
4 Pages(1000 words)Essay

Book Report on Earth in the Balance by Al Gore

...The industrialized world is on a collision with nature, says former Vice President Al Gore. It is time for those concerned to take action to save the environment. In his book, Earth in the Balance, Gore presented a wealth of leading-edge research with startling images of environmental destruction now occurring all over: global warming, ozone depletion, the loss of living species, deforestation. First published in 1992, and written with an authoritative tone, the book helped place the environment on the national agenda. The gist was that as environmental issues move front-and-center in the public consciousness, it is time to focus deeply on the fate of planet earth and commit ourselves to...
5 Pages(1250 words)Essay

Earth

... Task: Earth The diagram is a representation of part of the solar system showing two planets and the stars. In front of the picture is part of the planet Earth. The Earth assumes a spherical shape with a large center radius that reduces to the north and south. The picture of part of the Earth shows two continents, North and South America, to the top and bottom respectively. Green and brown colors used to represent the planets depict vegetation and land. The parts of the picture represented in blue consist of ocean and seawater. Between the two continents, lies the Caribbean Sea dominated by several islands that form a string represented in green color. The left part of the picture of part of Earth represents the Pacific Ocean... Task: Earth...
1 Pages(250 words)Essay

The Earth Energy-Balance

...The Earth Energy-Balance It is said that earth is a system with an energy budget that includes the equal gains of energy from the equal losses of energy on daily basis. The planet is almost in equilibrium so the amount of incoming energy is almost equal to the amount of outgoing energy. The energy that comes in and is used results in waste heat but in order to use more energy without increasing the earth’s temperature then other ways and sources are used to compensate for the energy that would have been wasted. The...
4 Pages(1000 words)Term Paper

Energy and Balance

...Energy Balance and Nutrients Determination of Energy The determination of the energy in the food involves the use of calorimetric bomb, which involves the determination of the number of calories in the foods. The calorimeter uses the principle of determining the volume of oxygen required to combust a substance of known weight. After 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 required in breaking the particles of the given food are to be pure. Contamination of the food potions interferes with the energy... in the...
2 Pages(500 words)Essay

Measuring energy balance

...A scientific report on the measurement of energy balance A scientific report on the measurement of energy balance Introduction Energy balance refers to the relationship between the amount of energy obtained in the food calories consumed in the body and the amount of energy used out. As a result of this, it is possible to ascertain the gained and lost weight in the body. Two main factors affect energy intake in the body; the amount of calorie intake as well as the digested and absorbed energy. On the other hand, exercise from different activities as well as efficiency in storage of food metabolism and storage in adipose tissue affects energy consumed by an individual (Miles, 2007; Westerterp, 2013). According to Elia & Ritz, (2000... ),...
6 Pages(1500 words)Coursework

Balance scorecard of energy industry

...Balance Scorecard of Energy Industry Insert Insert Depending on data, company and the energy industry, the format of a balanced scorecard vary. Assessing the mission and the culture of the energy sector comprises reflection of the organizations’ challenges, visions, and partners pursuing the energy agenda. Other stakeholders and the organization have to identify components of the management plan that need to be communicated (Varia, 2005). Due to this assessment, there will be an increase in the trustworthiness of energy consumers and community engagement. Focusing on customer needs in an endeavor to meet maximum...
1 Pages(250 words)Essay

Balance

...Balance Over the years, have been making efforts to ensure the information contained in a given book or essay addressvarious issues that satisfy the reader. This shows that the authors have been addressing the positive and negative aspects that can meet the eye of the reader. That is why balance is an essential aspect in any essay given that it shows diverse issues in a given essay. In this case, the notes given by Charles and Ray Eames and Powers of Ten are a perfect example of how balance can be expressed in a given story. Thus, this paper outlines the aspect of balance in different stories. The works of Charles and Ray Eames are a perfect example of...
3 Pages(750 words)Admission/Application Essay

Balance

... s: Noora Al-Zaini & Maha AlNaimi Lelland Hill & Diane History of Visual Communication 23/4 Balance in History Introduction The history of graphic design can be traced from the origin of the word graphics that has its roots in the Greek word, Graphikos that means “able to paint or draw”. However, William Addison Dwiggins, an American designer, was the first coil the term “graphic design.” He came up with the term in the year 1922 (Landa 22). Notably, the term is universally used in contemporary society to describe artistic occupation that involves communication and/or advertisements through artwork or design. Despite originating from Greece, art has had global recognition. For instance, it received wide recognition and application... ...
3 Pages(750 words)Essay
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!

Contact Us