Satellite Observations and a Numerical Study of Recurring Atmospheric Gravity Waves Along the South China Sea Coast
文献类型：期刊论文
| 作者 | Liu, Aiyue1,2; Shen, Dongliang2; Li, Xiaofeng2 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
 |
| 出版日期 | 2023-08-27 |
| 卷号 | 128期号:16页码:23 |
| 关键词 | the WRF model simulation atmospheric gravity waves satellite observations |
| ISSN号 | 2169-897X |
| DOI | 10.1029/2022JD038467 |
| 通讯作者 | Li, Xiaofeng(lixf@qdio.ac.cn) |
| 英文摘要 | Several groups of diurnal recurring atmospheric gravity waves (AGWs) were observed on an Environmental Satellite advanced synthetic aperture radar image and six Moderate Resolution Imaging Spectroradiometer (MODIS) images acquired along the South China Sea coast for 4 days from 3 to 6 March 2010. The unique observations are that the previously observed AGWs seldom recurred in a region for multiple days. Each cycle of these observed AGWs had undergone three stages: generation, propagation, and dissipation daily. Both SAR-imaged sea surface roughness patterns and MODIS-observed cloud imprints show that the AGWs were a group of transverse waves along the coast. We implemented the Weather Research and Forecasting (WRF) model to understand the physical characteristics and dynamical mechanisms of these AGWs. The WRF simulated results indicated that the AGWs were upstream waves triggered by the interaction of the southerly wind and topography and dissipated by the diurnal warming. We applied the spectral analysis to the model-simulated vertical wind field and explored that the leading wave crest length and crest-to-crest wavelength are 156.25 and 7.14 km, respectively. The wave period and phase speed of the upstream AGWs within the vital observation of SAR are 1.81 hr and 1.26 m/s, respectively. The fifth-generation European Centre for Medium-Range Weather Forecasts reanalysis hourly data was used to explore the rarity of the recurring AGWs and proved that the stable air-sea temperature difference was the main reason for the rarity of this event. And sufficient cloud content (>50%) was necessary for the MODIS to capture the AGWs' imprints. |
| WOS关键词 | BANDED CONVECTIVE ACTIVITY ; RADAR OBSERVATIONS ; WEATHER RESEARCH ; MODEL ; SAR ; PROPAGATION ; SURFACE ; MICROPHYSICS ; CLOUDS |
| 资助项目 | major project of the Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19060101] ; major project of the Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000] ; Major scientific and technological innovation projects in Shandong Province[2019JZZY010102] ; CAS Program[Y9KY04101L] |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001057473800001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/182903]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Li, Xiaofeng |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Aiyue,Shen, Dongliang,Li, Xiaofeng. Satellite Observations and a Numerical Study of Recurring Atmospheric Gravity Waves Along the South China Sea Coast[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2023,128(16):23. |
| APA | Liu, Aiyue,Shen, Dongliang,&Li, Xiaofeng.(2023).Satellite Observations and a Numerical Study of Recurring Atmospheric Gravity Waves Along the South China Sea Coast.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,128(16),23. |
| MLA | Liu, Aiyue,et al."Satellite Observations and a Numerical Study of Recurring Atmospheric Gravity Waves Along the South China Sea Coast".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 128.16(2023):23. |
入库方式： OAI收割
来源：海洋研究所
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