Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-18-0073.1 |
Simulated Kelvin-Helmholtz Waves over Terrain and Their Microphysical Implications | |
Conrick, Robert1; Mass, Clifford F.1; Zhong, Qi2 | |
2018-08-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2018 |
卷号 | 75期号:8页码:2787-2800 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | Two Kelvin-Helmholtz (KH) wave events over western Washington State were simulated and evaluated using observations from the Olympic Mountains Experiment (OLYMPEX) field campaign. The events, 12 and 17 December 2015, were simulated realistically by the WRF-ARW Model, duplicating the mesoscale environment, location, and structure of embedded KH waves, which had observed wavelengths of approximately 5 km. In simulations of both cases, waves developed from instability within an intense shear layer, caused by low-level easterly flow surmounted by westerly winds aloft. The low-level easterlies resulted from blocking by the Olympic Mountains in the 12 December case, while in the 17 December event, the easterly flow was produced by the synoptic environment. Simulated microphysics were evaluated for both cases using OLYMPEX observations. When the KH waves were within the melting level, simulated microphysical fields, such as hydrometeor mixing ratios, evinced considerable oscillatory behavior. In contrast, when waves were located below the melting level, the microphysical response was attenuated. Turning off the model's microphysics scheme and latent heating resulted in weakened KH wave activity, while removing the Olympic Mountains eliminated KH waves in the 12 December event but not the 17 December case. Finally, the impact of several microphysics parameterizations on KH activity was evaluated for both events. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000440281300001 |
WOS关键词 | LARGE-EDDY SIMULATION ; RADAR OBSERVATIONS ; NUMERICAL-SIMULATION ; TURBULENCE ; BILLOWS ; EVOLUTION ; FLOWS ; FRONT |
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/29333 |
专题 | 地球科学 |
作者单位 | 1.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA; 2.China Meteorol Adm Training Ctr, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Conrick, Robert,Mass, Clifford F.,Zhong, Qi. Simulated Kelvin-Helmholtz Waves over Terrain and Their Microphysical Implications[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2018,75(8):2787-2800. |
APA | Conrick, Robert,Mass, Clifford F.,&Zhong, Qi.(2018).Simulated Kelvin-Helmholtz Waves over Terrain and Their Microphysical Implications.JOURNAL OF THE ATMOSPHERIC SCIENCES,75(8),2787-2800. |
MLA | Conrick, Robert,et al."Simulated Kelvin-Helmholtz Waves over Terrain and Their Microphysical Implications".JOURNAL OF THE ATMOSPHERIC SCIENCES 75.8(2018):2787-2800. |
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