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	Statistics of gravity wave spectra in the troposphere and lower stratosphere over beijing
	Yuan Wei1,2; Xu JiYao1; Wu YongFu1,3; Chen HongBin4; Bian JianChun4
刊名	Science china-earth sciences
	2010
卷号	53期号:1页码:141-149
关键词	Balloon measurements Temperature and temperature spectra Gravity waves and saturation mode Dominant vertical wavelengths
ISSN号	1674-7313
DOI	10.1007/s11430-010-0002-6
通讯作者	Yuan wei(wyuan@spaceweather.ac.cn)
英文摘要	We utilize the temperature profiles with a height resolution of 50-m obtained over the beijing observatory in the period between january of 2002 and december of 2002 to study vertical wavenumber spectra of normalized temperature fluctuations in the 1.67-8.02 km and 13.57-19.92 km altitude ranges and compare them with linear saturation model. results indicate that individual vertical wavenumber spectra reveal a considerable variability in both slope and amplitude. the observed variability is not consistent with the predictions of linear saturation model. however, mean vertical wavenumber spectra in the troposphere measured at different seasons and different local times show great similarities with fairly uniform negative slopes of similar to 3.0 and amplitudes proportional to n(4), suggesting that the seasonal mean spectra observed in the troposphere completely obey the linear saturation model and are unique at present. in contrast, while the spectral slopes of the mean vertical wavenumber spectra in the lower stratosphere tend to support the explanation of the observed temperature fluctuations by linear saturation model, the spectral amplitudes diverge significantly from linear saturation model, suggesting that the seasonal mean spectra in the lower stratosphere do not obey the linear saturation model and are unique at present. the dominant vertical wavelengths derived from the observed mean vertical wavenumber spectra are estimated to be similar to 3.2-similar to 2.1 km in the troposphere and lower stratosphere, which is generally consistent with those reported in the literature.
WOS关键词	SEASONAL VARIABILITY ; UNIVERSAL SPECTRUM ; LOWER ATMOSPHERE ; NUMBER SPECTRA ; TEMPERATURE ; PROFILES ; RADIOSONDE ; SATURATION ; WIND
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000276546600014
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2407670
专题	中国科学院大学
通讯作者	Yuan Wei
作者单位	1.Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Weather, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Wuhan Univ, Sch Elect Informat, Wuhan 430079, Peoples R China 4.Chinese Acad Sci, Inst Atmospher Phys, LAGEO, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Yuan Wei,Xu JiYao,Wu YongFu,et al. Statistics of gravity wave spectra in the troposphere and lower stratosphere over beijing[J]. Science china-earth sciences,2010,53(1):141-149.
APA	Yuan Wei,Xu JiYao,Wu YongFu,Chen HongBin,&Bian JianChun.(2010).Statistics of gravity wave spectra in the troposphere and lower stratosphere over beijing.Science china-earth sciences,53(1),141-149.
MLA	Yuan Wei,et al."Statistics of gravity wave spectra in the troposphere and lower stratosphere over beijing".Science china-earth sciences 53.1(2010):141-149.

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