Liquid water static energy: Difference between revisions
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<div class="definition"><div class="short_definition">A [[thermodynamic variable]] (analogous to [[liquid water potential temperature]]) calculated by first evaporating any liquid water present in the air, and then lowering it [[adiabatically]] to a reference [[altitude]] ''z'' often taken either as the local surface (''z'' = 0), or as the altitude where the [[ambient pressure]] is 100 kPa: <div class="display-formula"><blockquote>[[File:ams2001glos-Le25.gif|link=|center|ams2001glos-Le25]]</blockquote></div> where ''g'' is gravitational [[acceleration]], ''L''<sub>''v''</sub> is the [[latent heat]] of [[vaporization]], ''C''<sub>''p''</sub> is the [[specific heat]] at constant [[pressure]] for air, ''T'' is [[absolute]] temperature, and ''r''<sub>''L''</sub> is the [[liquid water mixing ratio]] in the air.</div><br/> <div class="paragraph">This [[variable]] is conserved for [[moist-adiabatic processes]]. <br/>''Compare'' [[dry static energy]], [[moist static energy]], [[static energy]].</div><br/> </div> | <div class="definition"><div class="short_definition">A [[thermodynamic variable]] (analogous to [[liquid water potential temperature]]) calculated by first evaporating any liquid water present in the air, and then lowering it [[adiabatic process|adiabatically]] to a reference [[altitude]] ''z'' often taken either as the local surface (''z'' = 0), or as the altitude where the [[ambient pressure]] is 100 kPa: <div class="display-formula"><blockquote>[[File:ams2001glos-Le25.gif|link=|center|ams2001glos-Le25]]</blockquote></div> where ''g'' is gravitational [[acceleration]], ''L''<sub>''v''</sub> is the [[latent heat]] of [[vaporization]], ''C''<sub>''p''</sub> is the [[specific heat|specific heat]] at constant [[pressure]] for air, ''T'' is [[absolute]] temperature, and ''r''<sub>''L''</sub> is the [[liquid water mixing ratio|liquid water mixing ratio]] in the air.</div><br/> <div class="paragraph">This [[variable]] is conserved for [[moist-adiabatic processes]]. <br/>''Compare'' [[dry static energy]], [[moist static energy|moist static energy]], [[static energy]].</div><br/> </div> | ||
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Latest revision as of 16:20, 25 April 2012
liquid water static energy[edit | edit source]
A thermodynamic variable (analogous to liquid water potential temperature) calculated by first evaporating any liquid water present in the air, and then lowering it adiabatically to a reference altitude z often taken either as the local surface (z = 0), or as the altitude where the ambient pressure is 100 kPa: where g is gravitational acceleration, Lv is the latent heat of vaporization, Cp is the specific heat at constant pressure for air, T is absolute temperature, and rL is the liquid water mixing ratio in the air.
This variable is conserved for moist-adiabatic processes.
Compare dry static energy, moist static energy, static energy.
Compare dry static energy, moist static energy, static energy.
