Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027528 |
Impacts of Horizontal Propagation of Orographic Gravity Waves on the Wave Drag in the Stratosphere and Lower Mesosphere | |
Xu, Xin1; Wang, Yuan1; Xue, Ming1,2; Zhu, Kefeng1 | |
2017-11-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:21 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The impact of horizontal propagation of mountain waves on the orographic gravity wave drag (OGWD) in the stratosphere and lower mesosphere of the Northern Hemisphere is evaluated for the first time. Using a fine-resolution (1 arc min) terrain and 2.5 degrees x2.5 degrees European Centre for Medium-Range Weather Forecasts ERA-Interim reanalysis data during 2011-2016, two sets of OGWD are calculated offline according to a traditional parameterization scheme (without horizontal propagation) and a newly proposed scheme (with horizontal propagation). In both cases, the zonal mean OGWDs show similar spatial patterns and undergo a notable seasonal variation. In winter, the OGWD is mainly distributed in the upper stratosphere and lower mesosphere of middle to high latitudes, whereas the summertime OGWD is confined in the lower stratosphere. Comparison between the two sets of OGWD reveal that the horizontal propagation of mountain waves tends to decrease (increase) the OGWD in the lower stratosphere (middle to upper stratosphere and lower mesosphere). Consequently, including the horizontal propagation of mountain waves in the parameterization of OGWD can reduce the excessive OGWD in the lower stratosphere and strengthen the insufficient gravity wave forcing in the mesosphere, which are the known problems of traditional OGWD schemes. The impact of horizontal propagation is more prominent in winter than in summer, with the OGWD in western Tibetan Plateau, Rocky Mountains, and Greenland notably affected. |
英文关键词 | mountain waves gravity wave drag parameterization middle atmosphere climate models |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000417195500014 |
WOS关键词 | GAUSSIAN-BEAM APPROXIMATION ; DIRECTIONAL WIND SHEAR ; MOUNTAIN WAVES ; MOMENTUM FLUX ; GENERAL-CIRCULATION ; FLOW ; PARAMETRIZATION ; PARAMETERIZATION ; ATMOSPHERE ; BREAKING |
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/33396 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ, Key Lab Mesoscale Severe Weather, Minist Educ, Sch Atmospher Sci, Nanjing, Jiangsu, Peoples R China; 2.Univ Oklahoma, Ctr Anal & Predict Storms, Norman, OK 73019 USA |
推荐引用方式 GB/T 7714 | Xu, Xin,Wang, Yuan,Xue, Ming,et al. Impacts of Horizontal Propagation of Orographic Gravity Waves on the Wave Drag in the Stratosphere and Lower Mesosphere[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(21). |
APA | Xu, Xin,Wang, Yuan,Xue, Ming,&Zhu, Kefeng.(2017).Impacts of Horizontal Propagation of Orographic Gravity Waves on the Wave Drag in the Stratosphere and Lower Mesosphere.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(21). |
MLA | Xu, Xin,et al."Impacts of Horizontal Propagation of Orographic Gravity Waves on the Wave Drag in the Stratosphere and Lower Mesosphere".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.21(2017). |
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