Diffusive convection: Difference between revisions

From Glossary of Meteorology
No edit summary
m (Rewrite with Template:Term and clean up)
 
Line 1: Line 1:
 
{{Term
 
|Display title=diffusive convection
{{TermHeader}}
|Definitions={{Definition
{{TermSearch}}
|Num=1
 
|Meaning=A form of double-diffusive [[convection]] that occurs when cold [[freshwater]]  overlies warm salty water.
<div class="termentry">
|Explanation=If a [[parcel]] of warm and salty water is moved upward in the water column, it loses [[heat]] more  quickly than it loses salt, becoming colder and saltier, and thus denser, than its environs, or than  the water at its initial position. It then sinks beyond its initial position into water that is saltier  but warmer. It then gains heat from this water and begins to rise past its initial position. Diffusive  convection transports heat more efficiently than salt and is believed to be responsible for staircase-  like structures observed in the arctic [[thermocline]]. <br/>''See also'' [[double diffusive convection]], [[Turner angle|Turner  angle]].
  <div class="term">
}}
== diffusive convection ==
}}
  </div>
 
<div class="definition"><div class="short_definition">A form of double-diffusive [[convection]] that occurs when cold [[freshwater]]  overlies warm salty water.</div><br/> <div class="paragraph">If a [[parcel]] of warm and salty water is moved upward in the water column, it loses [[heat]] more  quickly than it loses salt, becoming colder and saltier, and thus denser, than its environs, or than  the water at its initial position. It then sinks beyond its initial position into water that is saltier  but warmer. It then gains heat from this water and begins to rise past its initial position. Diffusive  convection transports heat more efficiently than salt and is believed to be responsible for staircase-  like structures observed in the arctic [[thermocline]]. <br/>''See also'' [[double diffusive convection]], [[Turner angle|Turner  angle]].</div><br/> </div>
</div>
 
{{TermIndex}}
{{TermFooter}}
 
[[Category:Terms_D]]

Latest revision as of 12:20, 27 March 2024

A form of double-diffusive convection that occurs when cold freshwater overlies warm salty water.

If a parcel of warm and salty water is moved upward in the water column, it loses heat more quickly than it loses salt, becoming colder and saltier, and thus denser, than its environs, or than the water at its initial position. It then sinks beyond its initial position into water that is saltier but warmer. It then gains heat from this water and begins to rise past its initial position. Diffusive convection transports heat more efficiently than salt and is believed to be responsible for staircase- like structures observed in the arctic thermocline.
See also double diffusive convection, Turner angle.

Retrieved from "https://glossary.ametsoc.org/w/index.php?title=Diffusive_convection&oldid=30230"
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.