Emissivity

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{{DavinciWiki_Glossary|Emissivity is defined as the ratio of energy radiated (see [[radiance]] for more information) in a specific wavelength (or wavenumber) to that radiated by a black body of the same temperature.  Emissivity is a fundamental property of the material and is independent of temperature. Since emissivity is a ratio, it has values from 0.0 to 1.0, where any value outside this range is physically impossible.   
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{{DavinciWiki_Glossary|Emissivity is defined as the wavelength (or wave-number) dependent ratio of energy radiated (see [[radiance]] for more information) by a non-energy-generating material to that radiated by a black body of the same temperature.  Since emissivity is a ratio, it has values from 0.0 to 1.0, where any value outside this range is physically impossible.   
 
   
 
   
 
[[THEMIS]] radiance data can be converted to emissivity by [[thm.themis_emissivity]].  }}
 
[[THEMIS]] radiance data can be converted to emissivity by [[thm.themis_emissivity]].  }}
  
 
[[category:Glossary]]
 
[[category:Glossary]]

Latest revision as of 12:04, 11 February 2011

Description

Emissivity is defined as the wavelength (or wave-number) dependent ratio of energy radiated (see radiance for more information) by a non-energy-generating material to that radiated by a black body of the same temperature. Since emissivity is a ratio, it has values from 0.0 to 1.0, where any value outside this range is physically impossible.

THEMIS radiance data can be converted to emissivity by thm.themis_emissivity.

Last Updated: Feb-2011

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