Absolute vorticity: Difference between revisions

From Glossary of Meteorology
imported>Perlwikibot
No edit summary
m (Rewrite with Template:Term and clean up)
 
(One intermediate revision by one other user not shown)
Line 1: Line 1:
 
{{Term
 
|Display title=absolute vorticity
{{TermHeader}}
|Definitions={{Definition
{{TermSearch}}
|Num=1
 
|Meaning=
<div class="termentry">
#The [[vorticity]] of a fluid [[particle]] determined with respect to an [[absolute coordinate system|absolute  coordinate system]].<br/> The absolute vorticity [[vector]] is defined by 2&#x003a9; + '''&nabla;''' &times; '''u''', where &#x003a9; is the earth's [[angular velocity]]  vector and '''u''' is the three-dimensional [[relative velocity]] vector.<br/>  
  <div class="term">
#The vertical component &#x003b7; of the absolute vorticity vector (as defined above) given by the  sum of the vertical component of the [[vorticity]] with respect to the earth (the [[relative vorticity]])  &#x003b6; and the vorticity of the earth (equal to the [[Coriolis parameter]]) ''f'':  <blockquote>[[File:ams2001glos-Ae4.gif|link=|center|ams2001glos-Ae4]]</blockquote>
== absolute vorticity ==
}}
  </div>
}}
 
#<div class="definition"><div class="short_definition">The [[vorticity]] of a fluid [[particle]] determined with respect to an [[absolute coordinate system|absolute  coordinate system]].</div><br/> <div class="paragraph">The absolute vorticity [[vector]] is defined by 2&#x003a9; + '''&nabla;''' &times; '''u''', where &#x003a9; is the earth's [[angular velocity]]  vector and '''u''' is the three-dimensional [[relative velocity]] vector.</div><br/> </div>
#<div class="definition"><div class="short_definition">The vertical component &#x003b7; of the absolute vorticity vector (as defined above) given by the  sum of the vertical component of the [[vorticity]] with respect to the earth (the [[relative vorticity]])  &#x003b6; and the vorticity of the earth (equal to the [[Coriolis parameter]]) ''f'':  <div class="display-formula"><blockquote>[[File:ams2001glos-Ae4.gif|link=|center|ams2001glos-Ae4]]</blockquote></div></div><br/></div>
</div>
 
{{TermIndex}}
{{TermFooter}}
 
[[Category:Terms_A]]

Latest revision as of 16:08, 7 November 2023

#The vorticity of a fluid particle determined with respect to an absolute coordinate system.
The absolute vorticity vector is defined by 2Ω + × u, where Ω is the earth's angular velocity vector and u is the three-dimensional relative velocity vector.

  1. The vertical component η of the absolute vorticity vector (as defined above) given by the sum of the vertical component of the vorticity with respect to the earth (the relative vorticity) ζ and the vorticity of the earth (equal to the Coriolis parameter) f:
    ams2001glos-Ae4


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.