Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-4031-2017 |
Observed versus simulated mountain waves over Scandinavia-improvement of vertical winds, energy and momentum fluxes by enhanced model resolution? | |
Wagner, Johannes1; Doernbrack, Andreas1; Rapp, Markus1; Gisinger, Sonja1; Ehard, Benedikt1; Bramberger, Martina1; Witschas, Benjamin1; Chouza, Fernando1; Rahm, Stephan1; Mallaun, Christian2; Baumgarten, Gerd3; Hoor, Peter4 | |
2017-03-24 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | Two mountain wave events, which occurred over northern Scandinavia in December 2013 are analysed by means of airborne observations and global and mesoscale numerical simulations with horizontal mesh sizes of 16, 7.2, 2.4 and 0.8 km. During both events westerly cross-mountain flow induced upward-propagating mountain waves with different wave characteristics due to differing atmospheric background conditions. While wave breaking occurred at altitudes between 25 and 30 km during the first event due to weak stratospheric winds, waves propagated to altitudes above 30 km and interfacial waves formed in the troposphere at a stratospheric intrusion layer during the second event. Global and mesoscale simulations with 16 and 7.2 km grid sizes were not able to simulate the amplitudes and wavelengths of the mountain waves correctly due to unresolved mountain peaks. In simulations with 2.4 and 0.8 km horizontal resolution, mountain waves with horizontal wavelengths larger than 15 km were resolved, but exhibited too small amplitudes and too high energy and momentum fluxes. Simulated fluxes could be reduced by either increasing the vertical model grid resolution or by enhancing turbulent diffusion in the model, which is comparable to an improved representation of small-scale nonlinear wave effects. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000397935700004 |
WOS关键词 | POLAR STRATOSPHERIC CLOUDS ; LIDAR MEASUREMENTS ; GRAVITY-WAVES ; LAYER ; RELEVANCE ; PYRENEES ; BUDGET ; DRAG |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/30800 |
专题 | 地球科学 |
作者单位 | 1.Deutsch Zentrum Luft & Raumfahrt, Inst Phys Atmosphare, D-82234 Oberpfaffenhofen, Germany; 2.Deutsch Zentrum Luft & Raumfahrt, Flugexperimente, D-82234 Oberpfaffenhofen, Germany; 3.Leibniz Inst Atmospharen Phys, D-18225 Kuhlungsborn, Germany; 4.Johannes Gutenberg Univ Mainz, Inst Phys Atmosphare, D-55099 Mainz, Germany |
推荐引用方式 GB/T 7714 | Wagner, Johannes,Doernbrack, Andreas,Rapp, Markus,et al. Observed versus simulated mountain waves over Scandinavia-improvement of vertical winds, energy and momentum fluxes by enhanced model resolution?[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(6). |
APA | Wagner, Johannes.,Doernbrack, Andreas.,Rapp, Markus.,Gisinger, Sonja.,Ehard, Benedikt.,...&Hoor, Peter.(2017).Observed versus simulated mountain waves over Scandinavia-improvement of vertical winds, energy and momentum fluxes by enhanced model resolution?.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(6). |
MLA | Wagner, Johannes,et al."Observed versus simulated mountain waves over Scandinavia-improvement of vertical winds, energy and momentum fluxes by enhanced model resolution?".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.6(2017). |
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