Reappraising the appropriate calculation of a commonmeteorological quantity: Potential Temperature

doi:10.5194/acp-2020-361

GSTDTAP > 地球科学

DOI	10.5194/acp-2020-361
	Reappraising the appropriate calculation of a commonmeteorological quantity: Potential Temperature
	Manuel Baumgartner, Ralf Weigel, Ulrich Achatz, Allan H. Harvey, and Peter Spichtinger
	2020-05-04
发表期刊	Atmospheric Chemistry and Physics
出版年	2020
英文摘要	The potential temperature is a widely used quantity in atmospheric science since it is conserved for air's adiabatic changes of state. Its definition involves the specific heat capacity of dry air, which is traditionally assumed as constant. However, the literature provides different values of this allegedly constant parameter, which are reviewed and discussed in this study. Furthermore, we derive the potential temperature for a temperature-dependent parameterization of the specific heat capacity of dry air, thus providing a new reference potential temperature with a more rigorous basis. This new reference shows different values and vertical gradients in the upper troposphere and the stratosphere compared to the potential temperature that assumes constant heat capacity. The application of the new reference potential temperature to the prediction of gravity wave breaking altitudes reveals that the predicted wave breaking height may depend on the definition of the potential temperature used.
领域	地球科学
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/248847
专题	地球科学
推荐引用方式 GB/T 7714	Manuel Baumgartner, Ralf Weigel, Ulrich Achatz, Allan H. Harvey, and Peter Spichtinger. Reappraising the appropriate calculation of a commonmeteorological quantity: Potential Temperature[J]. Atmospheric Chemistry and Physics,2020.
APA	Manuel Baumgartner, Ralf Weigel, Ulrich Achatz, Allan H. Harvey, and Peter Spichtinger.(2020).Reappraising the appropriate calculation of a commonmeteorological quantity: Potential Temperature.Atmospheric Chemistry and Physics.
MLA	Manuel Baumgartner, Ralf Weigel, Ulrich Achatz, Allan H. Harvey, and Peter Spichtinger."Reappraising the appropriate calculation of a commonmeteorological quantity: Potential Temperature".Atmospheric Chemistry and Physics (2020).