imported>Perlwikibot |
|
| (One intermediate revision by the same user not shown) |
| Line 1: |
Line 1: |
| | | #REDIRECT [[Potential temperature]] |
| #REDIRECT [[potential temperature]] | |
| | |
| {{TermHeader}}
| |
| {{TermSearch}}
| |
| | |
| <div class="termentry">
| |
| <div class="term">
| |
| == potential temperature ==
| |
| </div>
| |
| | |
| #<div class="definition"><div class="short_definition">The [[temperature]] that an unsaturated [[parcel]] of [[dry air]] would have if brought [[adiabatically]] and reversibly from its initial state to a [[standard pressure]], ''p''<sub>0</sub>, typically 100 kPa.</div><br/> <div class="paragraph">Its mathematical expression is <div class="display-formula"><blockquote>[[File:ams2001glos-Pe37.gif|link=|center|ams2001glos-Pe37]]</blockquote></div> where θ is the potential temperature, ''T'' is temperature, and κ is the [[Poisson constant]]. This exponent is often assumed to be 2/7, the ratio of the [[gas constant]] to the [[specific heat capacity]] at constant pressure for an ideal diatomic gas. <br/>''See'' [[virtual potential temperature]], [[liquid water potential temperature]], [[equivalent potential temperature]], [[wet-bulb potential temperature]].</div><br/> </div>
| |
| #<div class="definition"><div class="short_definition">In [[oceanography]], the [[temperature]] that a water sample would attain if raised [[adiabatically]] to the sea surface.</div><br/> <div class="paragraph">For the deepest points of the ocean, which are just over 10 000 m, the [[adiabatic cooling]] would be less than 1.5°C.</div><br/> </div>
| |
| </div>
| |
| | |
| {{TermIndex}}
| |
| {{TermFooter}}
| |
| | |
| [[Category:Terms_P]]
| |
