Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027440 |
Gravity Wave Dynamics in a Mesospheric Inversion Layer: 1. Reflection, Trapping, and Instability Dynamics | |
Fritts, David C.1; Laughman, Brian1; Wang, Ling1; Lund, Thomas S.2; Collins, Richard L.3 | |
2018-01-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
![]() |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:2页码:626-648 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | An anelastic numerical model is employed to explore the dynamics of gravity waves (GWs) encountering a mesosphere inversion layer (MIL) having a moderate static stability enhancement and a layer of weaker static stability above. Instabilities occur within the MIL when the GW amplitude approaches that required for GW breaking due to compression of the vertical wavelength accompanying the increasing static stability. Thus, MILs can cause large-amplitude GWs to yield instabilities and turbulence below the altitude where they would otherwise arise. Smaller-amplitude GWs encountering a MIL do not lead to instability and turbulence but do exhibit partial reflection and transmission, and the transmission is a smaller fraction of the incident GW when instabilities and turbulence arise within the MIL. Additionally, greater GW transmission occurs for weaker MILs and for GWs having larger vertical wavelengths relative to the MIL depth and for lower GW intrinsic frequencies. These results imply similar dynamics for inversions due to other sources, including the tropopause inversion layer, the high stability capping the polar summer mesopause, and lower frequency GWs or tides having sufficient amplitudes to yield significant variations in stability at large and small vertical scales. MILs also imply much stronger reflections and less coherent GW propagation in environments having significant fine structure in the stability and velocity fields than in environments that are smoothly varying. |
英文关键词 | gravity wave dynamics mesospheric inversion layers gravity wave reflection and transmission gravity wave instabilities |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000425520200001 |
WOS关键词 | RAYLEIGH LIDAR OBSERVATIONS ; TEMPERATURE INVERSIONS ; ENERGY-DISSIPATION ; LOWER ATMOSPHERE ; FINE-STRUCTURE ; PART II ; CONVECTIVE ADJUSTMENT ; LOWER THERMOSPHERE ; LOWER STRATOSPHERE ; MIDDLE ATMOSPHERE |
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/32709 |
专题 | 气候变化 |
作者单位 | 1.GATS Inc, Boulder, CO 80301 USA; 2.NorthWest Res Associates, Boulder, CO USA; 3.Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA |
推荐引用方式 GB/T 7714 | Fritts, David C.,Laughman, Brian,Wang, Ling,et al. Gravity Wave Dynamics in a Mesospheric Inversion Layer: 1. Reflection, Trapping, and Instability Dynamics[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(2):626-648. |
APA | Fritts, David C.,Laughman, Brian,Wang, Ling,Lund, Thomas S.,&Collins, Richard L..(2018).Gravity Wave Dynamics in a Mesospheric Inversion Layer: 1. Reflection, Trapping, and Instability Dynamics.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(2),626-648. |
MLA | Fritts, David C.,et al."Gravity Wave Dynamics in a Mesospheric Inversion Layer: 1. Reflection, Trapping, and Instability Dynamics".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.2(2018):626-648. |
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