Observations of Freshening in the Northwest Pacific Subtropical Gyre near Luzon Strait
文献类型：期刊论文
| 作者 | Yan, YF ; Xu, DZ ; Qi, YQ ; Gan, ZJ |
| 刊名 | ATMOSPHERE-OCEAN
 |
| 出版日期 | 2012 |
| 卷号 | 50页码:92-102 |
| 关键词 | Argo upper ocean freshening Northwest Pacific |
| ISSN号 | 0705-5900 |
| 通讯作者 | xudazhi@scsio.ac.cn |
| 中文摘要 | Argo observations reveal that the salinity in the North Pacific subtropical gyre near Luzon Strait gradually declined by 0.2 (practical salinity scale used) from 2003 to 2007 over a depth range of 100 m to 200 m. Such freshening is also found in the outputs of the Estimating the Circulation and Climate of the Ocean (ECCO) model. The possible mechanisms for the freshening are investigated using the surface freshwater flux (E-P) data, the ECCO outputs and a salt budget equation for the upper ocean. Our analysis indicates that the magnitude of the salinity change caused by the surface freshwater flux anomaly is far smaller than observed, suggesting that the surface freshwater flux anomaly is not sufficient to account for the observed freshening. In fact, the salinity anomaly is closely linked to a pronounced freshening at the northeast corner of the study area from 2003 to 2007. The advection of salinity anomalies in the western North Pacific Ocean between 25 degrees N and 35 degrees N via a southwestward flow in the "C-shaped" region associated with the Kuroshio system is the main mechanism responsible for the observed freshening in the study area. |
| 学科主题 | Meteorology & Atmospheric Sciences; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000311779300008 |
| 公开日期 | 2013-08-28 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/10225]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 推荐引用方式 GB/T 7714 | Yan, YF,Xu, DZ,Qi, YQ,et al. Observations of Freshening in the Northwest Pacific Subtropical Gyre near Luzon Strait[J]. ATMOSPHERE-OCEAN,2012,50:92-102. |
| APA | Yan, YF,Xu, DZ,Qi, YQ,&Gan, ZJ.(2012).Observations of Freshening in the Northwest Pacific Subtropical Gyre near Luzon Strait.ATMOSPHERE-OCEAN,50,92-102. |
| MLA | Yan, YF,et al."Observations of Freshening in the Northwest Pacific Subtropical Gyre near Luzon Strait".ATMOSPHERE-OCEAN 50(2012):92-102. |
入库方式： OAI收割
来源：南海海洋研究所
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