Seasonal variability of the Kuroshio Current at the PN Section in the East China Sea based on in-situ observation from 1987 to 2010
文献类型：CNKI期刊论文
| 作者 | WEI Yanzhou ; PEI Yuhua; ZHANG Rong-Hua
|
| 发表日期 | 2015-05-15 |
| 出处 | Acta Oceanologica Sinica
 |
| 关键词 | Kuroshio Current,seasonal variability,East China Sea,significance test |
| 英文摘要 | As the spatio-temporal variability of the Kuroshio is highly influenced by mesoscale eddies, representing its seasonal variability characteristics requires sufficiently long term observations to reduce the uncertainties.Geostrophic velocity data estimated from hydrographic observation from 1987 to 2010 and the shipboard ADCP velocity data from 1993 to 2008 at the PN Section in the central East China Sea are collected to view the seasonal variability objectively. From both types of observation, it is found that the seasonal climatology mean of the Kuroshio Current exhibits significant difference in three areas, which are located at the Kuroshio Current core and its two flanks in a shallow layer less than 300 m, with the weakest northeast current at the core in autumn, the strongest counter current on the right flank in spring, and the strongest northeast current on the left flank in autumn, respectively. The seasonal variance of the Kuroshio Current also exhibits significant difference on the offshore side of the Kuroshio, with larger variance in spring and summer while smaller variance in autumn and winter. For the current parallel to the PN Section, the ratio of the seasonal variability component to the intraseasonal variability component is relatively smaller than that for the current perpendicular to the PN Section.Further analyses indicate that the seasonal variability at the PN Section is tightly linked to the upstream and downstream current variability. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | The National Basic Research Program(973 Program)of China under contract Nos 2012CB956000 and 2011CB409803 ; the National Natural Science Foundation of China under contract Nos 41475101,41421005,and 41276028 ; the Natural Science Foundation of China-Shandong Joint Fund for Marine Science Research Centers under contract No.U1406401 ; the Strategic Priority Project of Chinese Academy of Sciences under contract Nos XDA11010301 and XDA11020306 |
| 卷 | v.34期:05页:16-25 |
| 语种 | 英文; |
| 分类号 | P731.27 |
| ISSN号 | 0253-505X |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/190027]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofOceanCirculationandWave,InstituteofOceanology,ChineseAcademyofSciences 2.UniversityoftheChineseAcademyofSciences 3.StateKeyLaboratoryofSatelliteOceanEnvironmentDynamics,SecondInstituteofOceanography,StateOceanicAdministration 4.CollegeofPhysicalandEnvironmentalOceanography,OceanUniversityofChina |
| 推荐引用方式 GB/T 7714 | WEI Yanzhou,PEI Yuhua,ZHANG Rong-Hua. Seasonal variability of the Kuroshio Current at the PN Section in the East China Sea based on in-situ observation from 1987 to 2010. 2015. |
入库方式： OAI收割
来源：海洋研究所
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