Parameterizing Wave‐Driven Vertical Constituent Transport in the Upper Atmosphere

Abstract Dissipating waves contribute to vertical mixing of the atmosphere, alter molecular and eddy diffusion, and induce chemical transport of reactive species. These processes induce strong vertical transport of atmospheric constituents in regions where wave dissipation is significant. The effect...

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Autores principales:	Chester S. Gardner, Yafang Guo, Alan Z. Liu
Formato:	article
Lenguaje:	EN
Publicado:	American Geophysical Union (AGU) 2019
Materias:	wave transport upper atmosphere global modeling Astronomy QB1-991 Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/edbb2746c41a40cdbf4bdf8ee458d673
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spelling	oai:doaj.org-article:edbb2746c41a40cdbf4bdf8ee458d6732021-11-30T22:55:32ZParameterizing Wave‐Driven Vertical Constituent Transport in the Upper Atmosphere2333-508410.1029/2019EA000625https://doaj.org/article/edbb2746c41a40cdbf4bdf8ee458d6732019-06-01T00:00:00Zhttps://doi.org/10.1029/2019EA000625https://doaj.org/toc/2333-5084Abstract Dissipating waves contribute to vertical mixing of the atmosphere, alter molecular and eddy diffusion, and induce chemical transport of reactive species. These processes induce strong vertical transport of atmospheric constituents in regions where wave dissipation is significant. The effective wave diffusivity is proportional to the Stokes drift velocity imparted by the spectrum of vertically propagating waves, which is related to the vertical heat and wave energy fluxes. Because the heat flux cannot be derived from wave parameterization schemes employed in most atmospheric models, wave‐driven constituent transport has not been fully incorporated. However, we show in this paper that wave diffusivity can also be expressed in terms of the eddy diffusivity and variances of the temperature and lapse rate fluctuations, quantities that are readily derived from many wave parameterizations. The theory is in good agreement with lidar measurements of heat fluxes in the mesopause region. Total dynamical diffusivity associated with dissipating waves and turbulence can exceed 300 m2/s near the mesopause.Chester S. GardnerYafang GuoAlan Z. LiuAmerican Geophysical Union (AGU)articlewave transportupper atmosphereglobal modelingAstronomyQB1-991GeologyQE1-996.5ENEarth and Space Science, Vol 6, Iss 6, Pp 904-913 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	wave transport upper atmosphere global modeling Astronomy QB1-991 Geology QE1-996.5
spellingShingle	wave transport upper atmosphere global modeling Astronomy QB1-991 Geology QE1-996.5 Chester S. Gardner Yafang Guo Alan Z. Liu Parameterizing Wave‐Driven Vertical Constituent Transport in the Upper Atmosphere
description	Abstract Dissipating waves contribute to vertical mixing of the atmosphere, alter molecular and eddy diffusion, and induce chemical transport of reactive species. These processes induce strong vertical transport of atmospheric constituents in regions where wave dissipation is significant. The effective wave diffusivity is proportional to the Stokes drift velocity imparted by the spectrum of vertically propagating waves, which is related to the vertical heat and wave energy fluxes. Because the heat flux cannot be derived from wave parameterization schemes employed in most atmospheric models, wave‐driven constituent transport has not been fully incorporated. However, we show in this paper that wave diffusivity can also be expressed in terms of the eddy diffusivity and variances of the temperature and lapse rate fluctuations, quantities that are readily derived from many wave parameterizations. The theory is in good agreement with lidar measurements of heat fluxes in the mesopause region. Total dynamical diffusivity associated with dissipating waves and turbulence can exceed 300 m2/s near the mesopause.
format	article
author	Chester S. Gardner Yafang Guo Alan Z. Liu
author_facet	Chester S. Gardner Yafang Guo Alan Z. Liu
author_sort	Chester S. Gardner
title	Parameterizing Wave‐Driven Vertical Constituent Transport in the Upper Atmosphere
title_short	Parameterizing Wave‐Driven Vertical Constituent Transport in the Upper Atmosphere
title_full	Parameterizing Wave‐Driven Vertical Constituent Transport in the Upper Atmosphere
title_fullStr	Parameterizing Wave‐Driven Vertical Constituent Transport in the Upper Atmosphere
title_full_unstemmed	Parameterizing Wave‐Driven Vertical Constituent Transport in the Upper Atmosphere
title_sort	parameterizing wave‐driven vertical constituent transport in the upper atmosphere
publisher	American Geophysical Union (AGU)
publishDate	2019
url	https://doaj.org/article/edbb2746c41a40cdbf4bdf8ee458d673
work_keys_str_mv	AT chestersgardner parameterizingwavedrivenverticalconstituenttransportintheupperatmosphere AT yafangguo parameterizingwavedrivenverticalconstituenttransportintheupperatmosphere AT alanzliu parameterizingwavedrivenverticalconstituenttransportintheupperatmosphere
_version_	1718406235592589312

Parameterizing Wave‐Driven Vertical Constituent Transport in the Upper Atmosphere

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