Nonlinear interactions between gravity waves and background winds
文献类型：期刊论文
| 作者 | Liu, Xiao; Xu, Jiyao |
| 刊名 | Progress in natural science-materials international
 |
| 出版日期 | 2007-06-01 |
| 卷号 | 17期号:6页码:639-644 |
| 关键词 | Gravity waves Background winds Vertical group velocity Vertical wavelength Nonlinear interactions |
| ISSN号 | 1002-0071 |
| 通讯作者 | Liu, xiao(xliu@spaceweather.ac.en) |
| 英文摘要 | Using the nonlinear propagating gravity waves (gw) model in the two-dimensional compressible atmosphere and the linear gw theory, the process of gw propagation in different background winds, e. g. the direction of the background wind is opposite to (dead wind) or the same as (tail wind) the direction of the horizontal phase velocity of gw, is studied. the results show that the dead wind prolongs the vertical wavelength and accelerates gw propagation. therefore, gw propagates up to a higher height becomes instable in a short time and eventually induces an inverse jet flow. then, the vertical wavelength is becoming short due to the nonlinear interactions between gw and the inverse jet flow. the vertical wavelength and group velocity decrease after gw propagates into the tail wind. the initial instable time is delayed. although most of gw is trapped in the instable region, some of gw propagates above the instable region. compared with gw propagation in the tail wind, the nonlinear interactions between gw and the dead wind are also strong. in contrast, the linear gw theory predicts that gw can propagate freely in the dead wind. the vertical wavelength simulated by the nonlinear numerical model is different from that predicted by the linear theory greatly after gw propagates into the dead wind. |
| WOS关键词 | MIDDLE ATMOSPHERE ; PROPAGATION ; SATURATION ; MODELS |
| WOS研究方向 | Materials Science ; Science & Technology - Other Topics |
| WOS类目 | Materials Science, Multidisciplinary ; Multidisciplinary Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000248557300003 |
| 出版者 | ELSEVIER SCIENCE INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2381818 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Liu, Xiao |
| 作者单位 | 1.Chinese Acad Sci, Ctr Space Sci & Appl Res, State Key Lab Space Water, Beijing 100080, Peoples R China 2.Grad Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiao,Xu, Jiyao. Nonlinear interactions between gravity waves and background winds[J]. Progress in natural science-materials international,2007,17(6):639-644. |
| APA | Liu, Xiao,&Xu, Jiyao.(2007).Nonlinear interactions between gravity waves and background winds.Progress in natural science-materials international,17(6),639-644. |
| MLA | Liu, Xiao,et al."Nonlinear interactions between gravity waves and background winds".Progress in natural science-materials international 17.6(2007):639-644. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。