Flux density: Difference between revisions

From Glossary of Meteorology
imported>Perlwikibot
No edit summary
imported>Perlwikibot
No edit summary
 
Line 9: Line 9:
   </div>
   </div>


<div class="definition"><div class="short_definition">(Sometimes, [[flux]].) The rate at which any physical quantity is transported (usually in  a hemisphere of directions) across a unit area.</div><br/> <div class="paragraph">The term "flux" indicates flow (rate of [[transport]]), and "density" here is an areal (as opposed  to volumetric) density. Flux densities often may be written in the form ''pnv'', where ''n'' is the number  density (volumetric) of carriers of a property ''p'' (e.g., mass, charge, [[momentum]], [[energy]]) and ''v'' is  their speed.</div><br/> </div>
<div class="definition"><div class="short_definition">In [[radiation]], the [[radiant energy]] per unit time crossing a plane surface of unit area.</div><br/> <div class="paragraph">Units are W m<sup>-2</sup>. <br/>''See also'' [[irradiance]], [[emittance]].</div><br/> </div>
</div>
</div>


Latest revision as of 15:59, 25 April 2012



flux density

In radiation, the radiant energy per unit time crossing a plane surface of unit area.

Units are W m-2.
See also irradiance, emittance.


Retrieved from "https://glossarystaging.ametsoc.net/w/index.php?title=Flux_density&oldid=18337"
Powered by MediaWiki
Powered by WikiTeq
Powered by Semantic MediaWiki
Copyright 2024 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact permissions@ametsoc.org. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.