Layered model and insights into the vertical coupling of the South China Sea circulation in the upper and middle layers
文献类型：期刊论文
| 作者 | Quan, Qi2; Xue, Huijie1 |
| 刊名 | OCEAN MODELLING
 |
| 出版日期 | 2018 |
| 卷号 | 129页码:75 |
| 关键词 | Layered model South China Sea circulation Vertical coupling Entrainment/Detrainment |
| ISSN号 | 1463-5003 |
| DOI | 10.1016/j.ocemod.2018.06.006 |
| 英文摘要 | By changing the calculation of the pressure gradient, we convert a 3.5-layer model to a 3-layer model that includes entrainment and detrainment as well as interfacial friction between layers. In comparison with the reanalysis and satellite altimetry data, the model can well reproduce the circulation and reveal the primary dynamics in the South China Sea. We then use the 3-layer model to investigate the vertical coupling of the South China Sea circulation in the upper and middle layers. It is found that the horizontal pressure gradient, which reflects the depth-integrated effect of the thickness variation across all layers, plays a key role in the dynamical link between layers. Perturbations induced by changing the monsoonal wind or the Kuroshio in two comparative experiments are able to excite cyclonically propagating, slope-trapped waves and the westward planetary Rossby waves to modulate the basin wide circulation in all layers, indicating the dynamically similar adjustments throughout the water column in the SCS in both experiments. Even though the interface frictional dissipation and the entrainment/detrainment induced momentum exchange are small, analysis suggests that the exchange velocity between layers, which varies as the waves pass by, contributes considerably to the redistribution of the layer thickness hence the pressure gradient field in each layer to regulate the variability of the SCS circulation. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/17579]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 作者单位 | 1.Univ Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 2.Chinese Acad Sci, State Key Lab Trop Oceanog, South China Sea Inst Oceanol, 164 West Xingang Rd, Guangzhou 510301, Guangdong, Peoples R China 3.Univ Maine, Sch Marine Sci, Orono, ME 04469 USA |
| 推荐引用方式 GB/T 7714 | Quan, Qi,Xue, Huijie. Layered model and insights into the vertical coupling of the South China Sea circulation in the upper and middle layers[J]. OCEAN MODELLING,2018,129:75, 92. |
| APA | Quan, Qi,&Xue, Huijie.(2018).Layered model and insights into the vertical coupling of the South China Sea circulation in the upper and middle layers.OCEAN MODELLING,129,75. |
| MLA | Quan, Qi,et al."Layered model and insights into the vertical coupling of the South China Sea circulation in the upper and middle layers".OCEAN MODELLING 129(2018):75. |
入库方式： OAI收割
来源：南海海洋研究所
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