Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029746 |
Numerical Simulations of High-Frequency Gravity Wave Propagation Through Fine Structures in the Mesosphere | |
Mixa, Tyler1,2; Fritts, David1; Lund, Thomas1; Laughman, Brian; Wang, Ling1; Kantha, Lakshmi2 | |
2019-08-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:16页码:9372-9390 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | An anelastic numerical model is used to study the influences of fine structure (FS) in the wind and stability profiles on gravity wave (GW) propagation in the Mesosphere and Lower Thermosphere (MLT). Large amplitude GWs interacting with FS, that is, thin regions of enhanced wind and stability, evolve very differently depending on the precise vorticity source and sink terms for small-scale motions induced by the FS gradients. The resulting small-scale dynamics are deterministic, promoting local instabilities, dissipation, and momentum deposition at locations and orientations determined by the initial FS. The resulting momentum depositions yield significant changes to the background wind structure, having scales and amplitudes comparable to the effects of large-scale features in the ambient atmosphere. The deterministic nature of the large-scale impacts further suggests that they can be estimated without fully resolving the underlying instability dynamics. Given the significant amplitudes and ubiquitous occurrence of FS throughout the atmosphere, the influences of these important and diverse flow evolutions merit inclusion in broader modeling efforts. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000490762800027 |
WOS关键词 | HIGH-RESOLUTION OBSERVATIONS ; INSTABILITY DYNAMICS ; MIDDLE-ATMOSPHERE ; PART II ; ANELASTIC APPROXIMATION ; VORTICITY DYNAMICS ; RADAR OBSERVATIONS ; 3 DIMENSIONS ; NEW-ZEALAND ; MOUNT COOK |
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/186163 |
专题 | 气候变化 |
作者单位 | 1.Global Atmospher Technol & Sci, Boulder, CO USA; 2.Univ Colorado, Dept Aerosp Engn Sci, Boulder, CO 80309 USA |
推荐引用方式 GB/T 7714 | Mixa, Tyler,Fritts, David,Lund, Thomas,et al. Numerical Simulations of High-Frequency Gravity Wave Propagation Through Fine Structures in the Mesosphere[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(16):9372-9390. |
APA | Mixa, Tyler,Fritts, David,Lund, Thomas,Laughman, Brian,Wang, Ling,&Kantha, Lakshmi.(2019).Numerical Simulations of High-Frequency Gravity Wave Propagation Through Fine Structures in the Mesosphere.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(16),9372-9390. |
MLA | Mixa, Tyler,et al."Numerical Simulations of High-Frequency Gravity Wave Propagation Through Fine Structures in the Mesosphere".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.16(2019):9372-9390. |
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