Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The ratio of the radiation emitted by a surface to the radiation emitted by a blackbody at the same temperature.
from The Century Dictionary.
- noun Emissive or radiating power.
- noun Specifically A physical constant by means of which the power of radiation of a body is quantitatively expressed.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Physics) Tendency to emission; comparative facility of emission, or rate at which emission takes place
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun physics The energy-emitting
propensity of a surface, usually measured at a specificwavelength .
Etymologies
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Examples
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The amount of blackbody energy emitted is strictly and solely a function of the thermal temperature of the substance, mitigated by the characteristic of the substance called emissivity (which can, as you say, by frequency dependent).
RealClimate 2009
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The amount of blackbody energy emitted is strictly and solely a function of the thermal temperature of the substance, mitigated by the characteristic of the substance called emissivity (which can, as you say, by frequency dependent).
RealClimate 2009
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The amount of blackbody energy emitted is strictly and solely a function of the thermal temperature of the substance, mitigated by the characteristic of the substance called emissivity (which can, as you say, by frequency dependent).
RealClimate 2009
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The amount of blackbody energy emitted is strictly and solely a function of the thermal temperature of the substance, mitigated by the characteristic of the substance called emissivity (which can, as you say, by frequency dependent).
RealClimate 2009
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The amount of blackbody energy emitted is strictly and solely a function of the thermal temperature of the substance, mitigated by the characteristic of the substance called emissivity (which can, as you say, by frequency dependent).
RealClimate 2009
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Buy double-or triple-pane models, designated Energy Star with a "low E" (for "emissivity") coating.
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Perhaps the most interesting realization is that the concept of reciprocity applies to the ‘kludge’ factor called emissivity – the correction value that permits a greybody to be modeled with planck’s law and stefan’s law – applies to the atmosphere.
Gerry North's Suggested Reading on Climate Models « Climate Audit 2007
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Materials commonly used in urban areas for pavement and roofs, such as emissivity than the surrounding rural areas.
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I used a black body approximation to the earth’s emissivity, that is, an emissivity of 1.
USCCSP: Temperature Trends in the Lower Atmosphere « Climate Audit 2006
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The roof is made of "low emissivity" or "cool" roof materials, so it reflects sunlight rather than absorbing its heat.
In Bethesda, a home built to have a net-zero carbon footprint Elizabeth Festa 2010
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