| DOI: | 10.1002/2015GL066054
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| 论文题名: | Zonally uniform tidal oscillations in the tropical stratosphere |
| 作者: | Sakazaki T.; Sasaki T.; Shiotani M.; Tomikawa Y.; Kinnison D.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8448
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| EISSN: | 1944-8179
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| 出版年: | 2015
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| 卷: | 42, 期:21 | | 起始页码: | 9553
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| 结束页码: | 9560
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| 语种: | 英语
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| 英文关键词: | Brewer-Dobson Circulation
; CCM
; Nonmigrating tides
; Tides
; Wavenumber zero
; Zonally-uniform tides
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| Scopus关键词: | Chemical analysis
; Climate models
; Tides
; Brewer-Dobson circulation
; CCM
; Chemistry-climate models
; Nonmigrating tides
; Northern Hemispheres
; Satellite measurements
; Tropical stratosphere
; Wave numbers
; Upper atmosphere
; amplitude
; climate modeling
; climate signal
; data interpretation
; homogeneity
; Northern Hemisphere
; satellite data
; spatial distribution
; stratosphere
; temperature
; tidal cycle
; tropical region
; wavelength
; wind direction
; zonal flow
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| 英文摘要: | By analyzing data from satellite measurements, a reanalysis, and a chemistry-climate model, we found clear zonally uniform tidal signals in the tropical stratosphere, particularly during the Northern Hemisphere summer. Antisymmetric components with respect to the equator are dominant and are characterized by a vertical wavelength of ~15 km and a diurnal frequency. The temperature and vertical wind diurnal amplitudes in the stratosphere are 0.2-1 K and 1-7 mm s-1, respectively. The latter is generally larger than the climatological ascent motion in the stratosphere. The observed latitudinal and vertical structures can be explained by the second, propagating, antisymmetric Hough mode. These tidal oscillations should be carefully considered in analyses of zonal mean fields at a particular universal time. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955208875&doi=10.1002%2f2015GL066054&partnerID=40&md5=74de1aa9a08453d23da90ac23d0b7adf
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8064
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Japan
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| Recommended Citation: | |
Sakazaki T.,Sasaki T.,Shiotani M.,et al. Zonally uniform tidal oscillations in the tropical stratosphere[J]. Geophysical Research Letters,2015-01-01,42(21).
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