Variability of Antarctic Intermediate Water south of Australia and its relationship with frontal waves
文献类型：期刊论文
| 作者 | Zhang LinLin1,2,3; Yan XiaoMei1,2,3; Sun Che1,2,3; Hu DunXin1,2,3 |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2016-08-01 |
| 卷号 | 59期号:8页码:1674-1682 |
| 关键词 | Antarctic Intermediate Water (AAIW) Stream-coordinates Frontal wave EOF |
| 英文摘要 | A streamfunction EOF method is applied to a time series of hydrographic sections in the Southern Ocean south of Australia to study water mass variations. Results show that there are large thermohaline variations north of the Subantarctic Front ( SAF) at 300-1500 dbar level, indicating upwelling and downwelling of the Antarctic Intermediate Water ( AAIW) along isopycnal surfaces. Based on the latest altimeter product, Absolute Dynamic Topography, a mechanism due to frontal wave propagation is proposed to explain this phenomenon, and an index for frontal waves is defined. When the frontal wave is in positive ( negative) phase, the SAF flows northeastward ( southeastward) with the fresh AAIW downwelling ( upwelling). Such mesoscale processes greatly enhance cross-frontal exchanges of water masses. Spectral analysis shows that frontal waves in the Southern Ocean south of Australia are dominated by a period of about 130 days with a phase speed of 4 cm/s and a wavelength of 450 km. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000380680400015 |
| 版本 | 出版稿 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/135875]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang LinLin,Yan XiaoMei,Sun Che,et al. Variability of Antarctic Intermediate Water south of Australia and its relationship with frontal waves[J]. SCIENCE CHINA-EARTH SCIENCES,2016,59(8):1674-1682. |
| APA | Zhang LinLin,Yan XiaoMei,Sun Che,&Hu DunXin.(2016).Variability of Antarctic Intermediate Water south of Australia and its relationship with frontal waves.SCIENCE CHINA-EARTH SCIENCES,59(8),1674-1682. |
| MLA | Zhang LinLin,et al."Variability of Antarctic Intermediate Water south of Australia and its relationship with frontal waves".SCIENCE CHINA-EARTH SCIENCES 59.8(2016):1674-1682. |
入库方式： OAI收割
来源：海洋研究所
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