| DOI: | 10.1002/2015GL067233
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| 论文题名: | Combining AIRS and MLS observations for three-dimensional gravity wave measurement |
| 作者: | Wright C.J.; Hindley N.P.; Mitchell N.J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9465
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| EISSN: | 1944-9196
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| 出版年: | 2016
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| 卷: | 43, 期:2 | | 起始页码: | 884
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| 结束页码: | 893
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| 语种: | 英语
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| 英文关键词: | Andes
; gravity waves
; momentum flux
; remote sensing
; satellite
; stratosphere
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| Scopus关键词: | Acoustic devices
; Gravity waves
; Infrared devices
; Infrared instruments
; Ionosphere
; Remote sensing
; Satellites
; Upper atmosphere
; Andes
; Atmospheric forcing
; Atmospheric infrared sounders
; Microwave limb sounder
; Momentum flux
; Reliable estimates
; Satellite measurements
; Wave momentum flux
; Momentum
; AIRS
; amplitude
; atmospheric forcing
; estimation method
; flux measurement
; gravity wave
; microwave limb sounder
; remote sensing
; stratosphere
; wavelength
; Andes
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| 英文摘要: | Gravity waves play a critical role in transporting energy and momentum between the troposphere, stratosphere, and mesosphere. Satellite measurements provide a powerful tool to investigate these waves across the globe. However, many present methods cannot yield reliable estimates of wave momentum fluxes or the directions of these fluxes. Here we present a new method which addresses this problem by combining observations from Atmospheric Infrared Sounder (AIRS) and Microwave Limb Sounder (MLS) in three dimensions. The method allows direct estimation of horizontal and vertical wavelengths as well as wave amplitude. This in turn allows estimation of both wave momentum flux and the full 3-D direction of propagation, crucially including the horizontal direction. The method thus allows separation of the data into, for example, eastward and westward momentum fluxes, allowing estimation of the net atmospheric forcing due to these waves. We illustrate this method with a proof-of-concept study over the Andes, arguably the largest source of gravity waves in the world. We further critically assess the advantages and disadvantages of our method. Our study highlights the importance of the difference between net and absolute measures of momentum flux. © 2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84958087411&doi=10.1002%2f2015GL067233&partnerID=40&md5=f0e98099018c127cebfbcc636b0c1050
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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/10428
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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: | Centre for Space, Atmospheric and Oceanic Science, University of Bath, Bath, United Kingdom
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| Recommended Citation: | |
Wright C.J.,Hindley N.P.,Mitchell N.J.. Combining AIRS and MLS observations for three-dimensional gravity wave measurement[J]. Geophysical Research Letters,2016-01-01,43(2).
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