Difference between revisions of "Sigma-theta"

From Glossary of Meteorology
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<div class="definition"><div class="short_definition">(Symbol &#x003c3;<sub>&#x003b8;</sub>.) The [[density]] &#x003c1; (less 1000 kg m<sup>&minus;3</sup>) that a [[parcel]] of water of [[salinity]] ''S''  and [[temperature]] ''T'' would have if it were raised [[adiabatically]] to the sea surface, where its [[temperature]]  would change from ''T'' to [[potential temperature]] &#x003b8; due to [[adiabatic]] decompression.</div><br/> <div class="paragraph">In symbols,  <div class="display-formula"><blockquote>[[File:ams2001glos-Se25.gif|link=|center|ams2001glos-Se25]]</blockquote></div></div><br/></div>
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<div class="definition"><div class="short_definition">(Symbol &#x003c3;<sub>&#x003b8;</sub>.) The [[density]] &#x003c1; (less 1000 kg m<sup>-3</sup>) that a [[parcel]] of water of [[salinity]] ''S''  and [[temperature]] ''T'' would have if it were raised [[adiabatically]] to the sea surface, where its [[temperature]]  would change from ''T'' to [[potential temperature]] &#x003b8; due to [[adiabatic]] decompression.</div><br/> <div class="paragraph">In symbols,  <div class="display-formula"><blockquote>[[File:ams2001glos-Se25.gif|link=|center|ams2001glos-Se25]]</blockquote></div></div><br/></div>
 
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Revision as of 15:06, 20 February 2012



sigma-theta

(Symbol σθ.) The density ρ (less 1000 kg m-3) that a parcel of water of salinity S and temperature T would have if it were raised adiabatically to the sea surface, where its temperature would change from T to potential temperature θ due to adiabatic decompression.

In symbols,
ams2001glos-Se25