sera etkisi

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Turkish - English
(Bilim, İlim) greenhouse effect
(Çevre) The trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface
A similar retention of solar radiation, as by another planet or in a solar panel
The phenomenon whereby the earth's atmosphere traps solar radiation, caused by the presence in the atmosphere of gases such as carbon dioxide, water vapor, and methane that allow incoming sunlight to pass through but absorb heat radiated back from the earth's surface
The warming of the lower atmosphere and the surface of the earth resulting from the reflection of infrared radiation by carbon dioxide, water vapor, and other gases in the atmosphere, resulting in higher temperatures than would exist in the absence of the effect
A complex natural process that takes place when gases in the Earth's atmosphere, including water vapor, allow heat energy from the Sun to pass through to the land and oceans Heat energy radiating from the Earth's surface is absorbed by atmospheric gases, known as greenhouse gases, and is re-radiated back to Earth instead of escaping into space This natural process may be affected by human activities, such as emitting large quantities of carbon dioxide into the atmosphere
The increasing mean global surface temperature of the Earth caused by high concentrations of certain gases in the atmosphere (including carbon dioxide, methane, nitrous oxide, ozone, and chlorofluorocarbons) The greenhouse effect allows solar radiation to penetrate, but absorbs the infrared radiation returning to space
the trapping of heat energy close to a planet's surface by certain types of gases in the atmosphere (e g , water, methane, and carbon dioxide) These gases allow visible light from the Sun to reach the surface but prevent the infrared light from the heated surface to radiate back to space
The greenhouse effect causes the atmosphere to trap more heat energy at the Earth's surface and within the atmosphere by absorbing and re-emitting longwave energy Of the longwave energy emitted back to space, 90 % is intercepted and absorbed by greenhouse gases Without the greenhouse effect the Earth's average global temperature would be -18 degrees Celsius, rather than the present 15 degrees Celsius In the last few centuries, the activities of humans have directly or indirectly caused the concentration of the major greenhouse gases to increase Scientists predict that this increase may enhance the greenhouse effect making the planet warmer Some experts estimate that the Earth's average global temperature has already increased by 0 3 to 0 6 degrees Celsius, since the beginning of this century, because of this enhancement
An imbalance of heat into a planet compared to the heat radiated Different albedos and emissivities of gases in the planet's atmosphere cause the radiation entering the atmosphere to be converted to infrared wavelengths to which the atmosphere is opaque, preventing re-radiation The trapped radiation heats the atmosphere and the planet's surface
Phenomenan in which the atmosphere stops the heat radiated from the surface of the earth escaping, resulting in higher than normal temperatures The main cause of this is thought to be carbon dioxide
The overall warming of the earth's lower atmosphere primarily due to carbon dioxide and water vapor which permit the sun's rays to heat the earth, but then restrict some heat-energy from escaping back into space
The presence of trace atmospheric gases make the earth warmer than would direct sunlight alone These gases (such as CARBON DIOXIDE, METHANE, nitrous oxide, tropospheric ozone, and water vapor, allow visible light and ultraviolet light (shortwave radiation) to pass through the atmosphere and heat the earth's surface This heat is re-radiated from the earth in the form of infrared energy (longwave radiation) The greenhouse gases absorb part of that energy before it escapes into space The process of trapping the longwave radiation is known as the greenhouse effect Scientists estimate that without the greenhouse effect, the earth's surface would be roughly 54 degrees Fahrenheit colder than it is today -- too cold to support life as we know it
A popular term used to describe the roles of water vapor, carbon dioxide, and other trace gases in keeping the Earth's surface warmer than it would be otherwise These "radiatively active" gases are relatively transparent to incoming shortwave radiation, but are relatively opaque to outgoing longwave radiation The latter radiation, which would otherwise escape to space, is trapped by these gases within the lower levels of the atmosphere The subsequent reradiation of some of the energy back to the surface maintains surface temperatures higher than they would be if the gases were absent There is concern that increasing concentrations of greenhouse gases, including carbon dioxide, methane, and manmade chlorofluorocarbons, may enhance the greenhouse effect and cause global warming (Source: Carbon Dioxide Information Analysis Center, 1990)
The greenhouse effect is the problem caused by increased quantities of gases such as carbon dioxide in the air. These gases trap the heat from the sun, and cause a gradual rise in the temperature of the Earth's atmosphere. the gradual warming of the air surrounding the Earth as a result of heat being trapped by pollution global warming. Warming of the Earth's surface and lower atmosphere that tends to intensify with an increase in atmospheric carbon dioxide and certain other gases. Visible light from the Sun heats the Earth's surface. Part of this energy is reradiated in the form of long-wave infrared radiation, much of which is absorbed by molecules of carbon dioxide and water vapour in the atmosphere and reradiated back toward the surface as more heat. This process is analogous to the glass panes of a greenhouse that transmit sunlight but hold in heat. The trapping of infrared radiation causes the Earth's surface and lower atmosphere to warm more than they otherwise would, making the surface habitable. The increase in atmospheric carbon dioxide caused by widespread combustion of fossil fuels may intensify the greenhouse effect and cause long-term climatic changes. An increase in atmospheric concentrations of other trace gases such as chlorofluorocarbons, nitrous oxide, and methane may also aggravate greenhouse conditions. It is estimated that since the beginning of the Industrial Revolution the amount of atmospheric carbon dioxide has increased 30%, while the amount of methane has doubled. Today the U.S. is responsible for about one-fifth of all human-produced greenhouse-gas emissions. See also global warming
retention of the sun's radiation resulting in an increase of the earth's temperature
An increase in temperature caused when the atmosphere absorbs incoming solar radiation but blocks outgoing thermal radiation; carbon dioxide is the major factor
Warming that results when solar radiation is trapped by the atmosphere, caused by the presence in the atmosphere of gases such as carbon dioxide, water vapor, and methane that allow incoming sunlight to pass through but absorb heat radiated back from the earth's surface Many human activities cause levels of these gases to rise, resulting in an increase in the Earth's temperature
is the progressive, gradual warming of the earth's atmospheric temperature, caused by the insulating effect of carbon dioxide and other greenhouse gases that have proportionately increased in the atmosphere The greenhouse effect disturbs the way the Earth’s climate maintains the balance between incoming and outgoing energy by allowing short-wave radiation from the sun to penetrate through to warm the earth, but preventing the resulting long-wave radiation from escaping back into the atmosphere
Increase in temperature caused when incoming solar radiation is passed but outgoing thermal radiation is blocked by the atmosphere (carbon dioxide is the major factor)
The heating effect exerted by the atmosphere upon the earth by virtue of the fact that the atmosphere (mainly, its water vapor) absorbs and remits infrared radiation In detail: the shorter wavelengths of insolation are transmitted rather freely through the atmosphere to be absorbed at the earth's surface The earth then reemits this as long-wave (infrared) terrestrial radiation, a portion of which is absorbed by the atmosphere and again emitted (see atmospheric radiation) Some of this is emitted downward back to the earth's surface ( counter-radiation)
sera etkisi