Effects of mixing on the subduction of South Pacific waters identified by a simulated passive tracer and its adjoint

doi:10.1016/j.dynatmoce.2010.10.002

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋环流与波动重点实验室

	Effects of mixing on the subduction of South Pacific waters identified by a simulated passive tracer and its adjoint
	Gao, Shan 1; Qu, Tangdong 2; Fukumori, Ichiro 3
刊名	DYNAMICS OF ATMOSPHERES AND OCEANS
	2011
卷号	51 期号:1-2 页码:45-54
关键词	Subduction Mixing Tracer South Pacific
ISSN号	0377-0265
DOI	10.1016/j.dynatmoce.2010.10.002
文献子类	Article
英文摘要	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.
学科主题	Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences ; Oceanography
URL标识	查看原文
语种	英语
WOS记录号	WOS:000287281100003
公开日期	2012-07-03
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/11568]
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, 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
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.