Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029190 |
A Numerical Study of Gravity Wave Propagation Characteristics in the Stratospheric Thermal Duct | |
Dong, Wenjun1; Zhang, Shaodong1,2,3; Huang, Chunming1,2; Huang, Kaiming1,2; Gong, Yun1,2; Gan, Quan4 | |
2018-11-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:21页码:11918-11937 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | We developed a fully nonlinear, two-dimensional, numerical model to simulate the long horizontal distance propagations of atmospheric gravity waves in a stratospheric thermal duct. The numerical results show that after the wind disturbance excited by the initial wave forcing enters the duct completely, symmetric and antisymmetric modes can be identified in the horizontal direction. The frequency-wave number spectrum indicates that various modes with different spatial structures can exist simultaneously in the duct. The primary parameters (horizontal wavelength, vertical wavelength and wave frequency) of the ducted wave packets in a given thermal duct are mainly determined by the horizontal wavelength of the initial wave forcing. The mean ratio of the upward propagating energy to the downward propagating energy in the thermal duct was regarded as an approximation of the power standing wave ratio (PSWR). The time variation of PSWR indicates that the standing wave was formed with the propagation of the ducted waves. During the gravity waves ducted propagation, most wave energy is restricted to the ducting region and dissipates slowly with time. The higher the wave frequency (or the shorter the horizontal wavelength) of the initial wave forcing, the slower the wave energy dissipates. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000452001400009 |
WOS关键词 | LOWER THERMOSPHERE ; UPPER MESOSPHERE ; AIRGLOW ; EVENT ; INSTABILITIES ; ATMOSPHERE ; TURBULENCE ; AMPLITUDE ; BREAKING ; PACKETS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32381 |
专题 | 气候变化 |
作者单位 | 1.Wuhan Univ, Sch Elect Informat, Wuhan, Hubei, Peoples R China; 2.Minist Educ, Key Lab Geospace Environm & Geodesy, Wuhan, Hubei, Peoples R China; 3.Wuhan Univ, State Key Lab Informat Engn Surveying Mapping & R, Wuhan, Hubei, Peoples R China; 4.Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA |
推荐引用方式 GB/T 7714 | Dong, Wenjun,Zhang, Shaodong,Huang, Chunming,et al. A Numerical Study of Gravity Wave Propagation Characteristics in the Stratospheric Thermal Duct[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(21):11918-11937. |
APA | Dong, Wenjun,Zhang, Shaodong,Huang, Chunming,Huang, Kaiming,Gong, Yun,&Gan, Quan.(2018).A Numerical Study of Gravity Wave Propagation Characteristics in the Stratospheric Thermal Duct.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(21),11918-11937. |
MLA | Dong, Wenjun,et al."A Numerical Study of Gravity Wave Propagation Characteristics in the Stratospheric Thermal Duct".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.21(2018):11918-11937. |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论