Subthermocline anticyclonic gyre east of Mindanao and its relationship with the Mindanao Undercurrent
文献类型：CNKI期刊论文
| 作者 | Song LN(宋丽娜) ; Li YL(李元龙); Liu CY(刘传玉); Wang F(王凡)
|
| 发表日期 | 2017-11-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | subthermocline circulation anticyclonic gyre Mindanao Undercurrent seasonal and interannual variability Halmahera Eddy |
| 英文摘要 | The quasi-permanent anticyclonic gyre(ACG) east of Mindanao is a dominant feature of the subthermocline circulation in the southern Philippine Sea, and it is believed closely associated with the continuous northward alongshore flow of the Mindanao Undercurrent(MUC). In this study, the structure and variability of this ACG were investigated using the 1950–2012 output of the Oceanic General Circulation Model for the Earth Simulator(OFES), which can reproduce well the structure of the climatological intermediate-layer circulation and satellite-observed sea level variations in the southern Philippine Sea. Between 26.8–27.3 σθ, the ACG covers a large area from the Mindanao coast to 131°E and from 3°N to 10°N. Its anticyclonic flow structure is unrelated to the surface Halmahera Eddy. The eddy-resolving simulation of the OFES revealed that the ACG consists of two components. The southern ACG(SACG) is centered at ~6°N, while the northern ACG(NACG) is centered at ~10°N. Seasonal and interannual variations of the ACG are linked to the variations of the northward MUC transport along the Mindanao coast, and the role of the SACG is more important than the NACG. Stronger(weaker) ACGs lead to greater(smaller) MUC transport. On the interannual timescale, the SACG shows a spectrum peak at 4–8 years, while the NACG has enhanced power within the 3–5-year band. A lead–lag correlation analysis indicates that interannual variations of the ACGs and the MUC transport are partly associated with the El Ni?o-Southern Oscillation. Possible causes for the ACG variability are discussed. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Basic Research Program of China(973 Program)(No.2012CB417401) ; the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDA11010204) ; the Pioneer Hundred Talent Program of Chinese Academy of Sciences(No.Y62114101Q) ; the National Natural Science Foundation of China(NSFC)(Nos.40890152,41330963) ; the NSFC-Shandong Joint Fund for Marine Science Research Centers(No.U1406401) ; the Global Change and Air-Sea Interaction(No.GASI-03-01-01-05) ; the NSFC Innovative Group Grant(No.41421005) |
| 卷 | v.35期:06页:45-60 |
| 语种 | 英文; |
| 分类号 | P73 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/189101]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofOceanCirculationandWaves(KLOCAW),InstituteofOceanology,ChineseAcademyofSciences 2.UniversityofChineseAcademyofSciences 3.DepartmentofAtmosphericandOceanicSciences,UniversityofColorado,Boulder 4.FunctionLaboratoryforOceanDynamicsandClimate,QingdaoNationalLaboratoryforMarineScienceandTechnology |
| 推荐引用方式 GB/T 7714 | Song LN,Li YL,Liu CY,et al. Subthermocline anticyclonic gyre east of Mindanao and its relationship with the Mindanao Undercurrent. 2017. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。