Observation of physical oceanography at the Y3 seamount(Yap Arc) in winter 2014
文献类型：CNKI期刊论文
| 作者 | Zhenyan WANG; Xingyu SHI; Haijun HUANG |
| 发表日期 | 2022-07-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | Yap seamount tropical Western Pacific Ocean current water mass tides turbulent diffusivity |
| 英文摘要 | Seamounts affect the surrounding physical oceanography and form unique dynamic processes. The influences of these processes on biological and sedimentary distributions are quite different in seamount areas at different depths. The Y3 seamount is located in the Yap Arc of the tropical Western Pacific Ocean. The water depth of its summit is ～280 m. Based on field data obtained in December 2014 and other openaccess data, the physical oceanography around the Y3 seamount was preliminarily analyzed. The results show that the upper layer(0–150 m) was under the influence of the westward-flowing North Equatorial Current(NEC), while the eastward-flowing North Equatorial Undercurrent(NEUC) controlled the water between 200–800 m. The NEC was strong and steady, but the NEUC was disturbed by the Y3 seamount. The cold dome above the Y3 seamount was not caused by a Taylor cap or tidal rectification but probably by upwelling during the survey time. Tidal currents were squeezed against topography and greatly amplified in the Y3 seamount. The thicknesses of the surface turbulent layers were greatly influenced by the springneap tidal cycle. The turbulent diffusivities in the sea surface layer above the Y3 seamount were much larger than those in the open ocean. Calculations showed that the surface wind stress greatly affected the turbulent mixing in the surface layer of the Y3 seamount. The reciprocal action between the amplified tidal currents and topography was the most likely cause of the turbulent mixing near the bottom of the Y3 seamount. This study can provide a scientific basis for further study of biological and depositional characteristics at the Y3 seamount. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Nos. XDB42010203, XDA19060401, XDA23050503) ; the National Natural Science Foundation of China (No. 42176090) |
| 卷 | v.40期:04页:28-46 |
| 语种 | 英文; |
| 分类号 | P714 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/187378]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.UniversityofChineseAcademyofSciences 2.CASKeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences 3.LaboratoryforMarineMineralResources,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) 4.CenterforOceanMega-Science,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | Zhenyan WANG,Xingyu SHI,Haijun HUANG. Observation of physical oceanography at the Y3 seamount(Yap Arc) in winter 2014. 2022. |
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。