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| Long-term trend of Pacific South Equatorial Current bifurcation over 1950-2010 | |
| Zhai, Fangguo1,2; Hu, Dunxin2; Wang, Qingye2; Wang, Fujun2; Hu, DX (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China. | |
| 2014-05-16 | |
| 发表期刊 | GEOPHYSICAL RESEARCH LETTERS
 |
| 卷号 | 41期号:9页码:3172-3180 |
| 文章类型 | Article |
| 摘要 | This study investigates the long-term change of the Pacific South Equatorial Current (SEC) bifurcation latitude (SBL) over 1950-2010 with Simple Ocean Data Assimilation version 2.2.4. Results indicate that the SBL averaged within upper 200 m has migrated southward at 0.020 degrees S yr(-1), comparable in magnitude with -0.024 degrees N yr(-1) for the North Equatorial Current bifurcation latitude (NBL). The SEC transport into the Coral Sea has increased. Due to the southward SBL migration, most of the increased SEC water was transported equatorward, contributing to the Equatorial Undercurrent intensification. Experiments with a nonlinear 1.5 layer reduced gravity model indicate that the southward migration of SBL is mainly caused by positive Ekman flux divergence trend in the eastern tropical South Pacific, while that of NBL is caused by negative Ekman flux divergence trend in the western tropical North Pacific. |
| 学科领域 | Geology |
| DOI | 10.1002/2014GL059934 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000338196700022 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/23942 |
| 专题 | 海洋环流与波动重点实验室 |
| 通讯作者 | Hu, DX (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China. |
| 作者单位 | 1.State Ocean Adm, Inst Oceanog 3, Xiamen, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China |
| 第一作者单位 | 海洋环流与波动重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhai, Fangguo,Hu, Dunxin,Wang, Qingye,et al. Long-term trend of Pacific South Equatorial Current bifurcation over 1950-2010[J]. GEOPHYSICAL RESEARCH LETTERS,2014,41(9):3172-3180. |
| APA | Zhai, Fangguo,Hu, Dunxin,Wang, Qingye,Wang, Fujun,&Hu, DX .(2014).Long-term trend of Pacific South Equatorial Current bifurcation over 1950-2010.GEOPHYSICAL RESEARCH LETTERS,41(9),3172-3180. |
| MLA | Zhai, Fangguo,et al."Long-term trend of Pacific South Equatorial Current bifurcation over 1950-2010".GEOPHYSICAL RESEARCH LETTERS 41.9(2014):3172-3180. |
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