气候变化领域集成服务门户(CCPortal): Temperature Tides Across the Mid-Latitude Summer Turbopause Measured by a Sodium Lidar and MIGHTI/ICON

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DOI	10.1029/2021JD035321
	Temperature Tides Across the Mid-Latitude Summer Turbopause Measured by a Sodium Lidar and MIGHTI/ICON
	Yuan T.; Stevens M.H.; Englert C.R.; Immel T.J.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:16
英文摘要	Local full diurnal coverage of temperature variations across the turbopause (∼90–115 km altitude) is achieved by combining the nocturnal observations of a Sodium (Na) Doppler lidar on the Utah State University (USU) campus (41.7°N, 248.2°E) and NASA Michelson interferometer for global high-resolution thermospheric imaging (MIGHTI)/Ionospheric connection explorer (ICON) daytime observations made in the same vicinity. In this study, utilizing this hybrid data set during summer 2020 between June 12th and July 15th, we retrieve the temperature signatures of diurnal and semidiurnal tides in this region. The tidal amplitudes of both components have similar vertical variation with increasing altitude: less than 5 K below ∼98 km but increase considerably above, up to 19 K near 104 km. Both experience significant dissipation near turbopause altitudes, down to ∼12 K up to 113 km for the diurnal tide and ∼13 K for the semidiurnal tide near 110 km. In addition, while the semidiurnal tidal behavior is consistent with the theoretical predictions, the diurnal amplitude is considerably larger than what is expected in the turbopause region. The tidal phase profile shows a dominance of tidal components with a long vertical wavelength (longer than 40 km) for the semidiurnal tide. On the other hand, the diurnal tide demonstrates close to an evanescent wave behavior in the turbopause region, which is absent in the model results and Thermosphere ionosphere mesosphere energetics and dynamics (TIMED)/Sounding of the atmosphere using broadband radiometry (SABER) observations. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	Na lidar and MIGHTI/ICON; tides; turbopause
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/237117
作者单位	Center for Atmospheric and Space Sciences, Utah State University, Logan, UT, United States; Space Science Division, Naval Research Laboratory, Washington, DC, United States; Space Sciences Laboratory, University of California, Berkeley, CA, United States
推荐引用方式 GB/T 7714	Yuan T.,Stevens M.H.,Englert C.R.,et al. Temperature Tides Across the Mid-Latitude Summer Turbopause Measured by a Sodium Lidar and MIGHTI/ICON[J],2021,126(16).
APA	Yuan T.,Stevens M.H.,Englert C.R.,&Immel T.J..(2021).Temperature Tides Across the Mid-Latitude Summer Turbopause Measured by a Sodium Lidar and MIGHTI/ICON.Journal of Geophysical Research: Atmospheres,126(16).
MLA	Yuan T.,et al."Temperature Tides Across the Mid-Latitude Summer Turbopause Measured by a Sodium Lidar and MIGHTI/ICON".Journal of Geophysical Research: Atmospheres 126.16(2021).