The influence of background winds and attenuation on the propagation of atmospheric gravity waves
文献类型：期刊论文
| 作者 | Ding, F; Wan, W; Yuan, H |
| 刊名 | JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
 |
| 出版日期 | 2003-05-01 |
| 卷号 | 65期号:7页码:857-869 |
| 关键词 | internal gravity wave ducted gravity wave attenuation wind |
| 英文摘要 | The influence of background winds and energy attenuation on the propagation of atmospheric gravity waves is numerically analyzed. The gravity waves, both in the internal and ducted forms, are included through employing ray-tracing method and full-wave solution method. Background winds with different directions may cause ray paths of internal gravity waves to be horizontally prolonged, vertically steepened, reflected or critically coupled, all of which change the accumulation of energy attenuation along ray paths. Only the penetrating waves propagating against winds can easily reach the ionospheric height with less energy attenuation. The propagation status of gravity waves with different periods and phase speeds is classified into the cut-off region, the reflected region and the propagating region. All the three regions are influenced significantly by winds. The area of the reflected region reduces when gravity waves propagate in the same direction of winds and expands when propagating against wind. In propagating region, the horizontal attenuation distances of gravity waves increase and the arrival heights decrease when winds blow in the same direction of gravity waves, while the attenuation distances decrease and the arrival heights increase when gravity waves propagate against winds. The results for ducted gravity waves show that the influence of winds on waves of lower atmospheric modes is not noticeable for they propagate mainly under mesosphere, where the wind field is relatively weak. However, strong winds at thermospheric height lead to considerable changes of dispersion relation and attenuation distance of upper atmospheric modes. Winds against the wave propagating direction support long-distance propagation of G mode, while the attenuation distances decrease when winds blow in the same direction of the wave. The distribution of TIDs observed by HF Doppler array at Wuhan is compared with the simulation of internal gravity waves. The observation of TIDs shows agreement with our numerical calculations. (C) 2003 Elsevier Science Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences |
| 研究领域[WOS] | Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences |
| 关键词[WOS] | IONOSPHERIC DISTURBANCES ; MIDDLE ATMOSPHERE ; THERMOSPHERE ; DISSIPATION ; MODEL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000183780800007 |
| 公开日期 | 2015-12-08 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/8892]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | Chinese Acad Sci, Wuhan Ionospher Observ, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ding, F,Wan, W,Yuan, H. The influence of background winds and attenuation on the propagation of atmospheric gravity waves[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2003,65(7):857-869. |
| APA | Ding, F,Wan, W,&Yuan, H.(2003).The influence of background winds and attenuation on the propagation of atmospheric gravity waves.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,65(7),857-869. |
| MLA | Ding, F,et al."The influence of background winds and attenuation on the propagation of atmospheric gravity waves".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 65.7(2003):857-869. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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