Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Effects of mixing on the subduction of South Pacific waters identified by a simulated passive tracer and its adjoint | |
Gao, Shan1; Qu, Tangdong2; Fukumori, Ichiro3 | |
2011 | |
发表期刊 | DYNAMICS OF ATMOSPHERES AND OCEANS |
ISSN | 0377-0265 |
卷号 | 51期号:1-2页码:45-54 |
文章类型 | Article |
摘要 | Effects of mixing on water mass subduction are analyzed in the South Pacific Ocean. Model simulations using a passive tracer and its adjoint are employed in conjunction with a particle tracking method to distinguish effects of mixing from those of advection. The results show that mixing processes can contribute to as much as 20% of the overall subduction rate in the South Pacific. Of this mixing contribution, about 30% can be attributed to meso-scale eddies, including their associated bolus transport, while the major part (70%) is due to other diabatic processes. The impact of mixing reaches its maximum near the Sub-Antarctic Front, accounting for nearly 30% of the total subduction rate. Consequently, estimates based on tracing particles or on advection alone may significantly underestimate the subduction rate in the South Pacific Ocean. (C) 2010 Elsevier B.V. All rights reserved.; Effects of mixing on water mass subduction are analyzed in the South Pacific Ocean. Model simulations using a passive tracer and its adjoint are employed in conjunction with a particle tracking method to distinguish effects of mixing from those of advection. The results show that mixing processes can contribute to as much as 20% of the overall subduction rate in the South Pacific. Of this mixing contribution, about 30% can be attributed to meso-scale eddies, including their associated bolus transport, while the major part (70%) is due to other diabatic processes. The impact of mixing reaches its maximum near the Sub-Antarctic Front, accounting for nearly 30% of the total subduction rate. Consequently, estimates based on tracing particles or on advection alone may significantly underestimate the subduction rate in the South Pacific Ocean. (C) 2010 Elsevier B.V. All rights reserved. |
关键词 | Subduction Mixing Tracer South Pacific |
学科领域 | Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences ; Oceanography |
DOI | 10.1016/j.dynatmoce.2010.10.002 |
URL | 查看原文 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000287281100003 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/11567 |
专题 | 海洋环流与波动重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, PR, Peoples R China 2.Univ Hawaii Manoa, SOEST, Int Pacific Res Ctr, Honolulu, HI 96822 USA 3.CALTECH, Jet Prop Lab, Pasadena, CA USA |
第一作者单位 | 中国科学院海洋研究所 |
推荐引用方式 GB/T 7714 | Gao, Shan,Qu, Tangdong,Fukumori, Ichiro. Effects of mixing on the subduction of South Pacific waters identified by a simulated passive tracer and its adjoint[J]. DYNAMICS OF ATMOSPHERES AND OCEANS,2011,51(1-2):45-54. |
APA | Gao, Shan,Qu, Tangdong,&Fukumori, Ichiro.(2011).Effects of mixing on the subduction of South Pacific waters identified by a simulated passive tracer and its adjoint.DYNAMICS OF ATMOSPHERES AND OCEANS,51(1-2),45-54. |
MLA | Gao, Shan,et al."Effects of mixing on the subduction of South Pacific waters identified by a simulated passive tracer and its adjoint".DYNAMICS OF ATMOSPHERES AND OCEANS 51.1-2(2011):45-54. |
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