Ventilation of a Monsoon-Dominated Ocean: Subduction and Obduction in the North Indian Ocean

doi:10.1029/2017JC013719

IOCAS-IR > 海洋环流与波动重点实验室

	Ventilation of a Monsoon-Dominated Ocean: Subduction and Obduction in the North Indian Ocean
	Liu, Lingling 1,2; Huang, Rui Xin 3,4; Wang, Fan1,2
	2018-07-01
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
卷号	123 期号:7 页码:4449-4463
通讯作者	Liu, Lingling(liull@qdio.ac.cn)
摘要	Based on the characteristics of oceanic circulation in a monsoon-dominated ocean, a new framework of annual ventilation, including subduction and obduction, is postulated and applied to the North Indian Ocean based on both SODA and GODAS. It is revealed that besides the winter season, ventilation can also occur in summer. Considering the horizontal resolution, SODA results are mainly discussed, with GODAS results given for validity of key conclusions. The annual subduction/obduction rate in the North Indian Ocean based on SODA is estimated at 10.2 Sv/11 Sv averaged from 1960 to 2009, with 4.2 Sv/6.2 Sv occurring during winter monsoon period and 6 Sv/4.8 Sv during summer monsoon period, respectively. Both subduction and obduction feature great interannual variability, with the vertical pumping term of decisive importance. Furthermore, the concepts of the penetration depth through subduction and the origin depth through obduction are postulated. The penetration depth in the Arabian Sea is on the order of 50 to 200 m; the origin depth through obduction in the Arabian Sea is deeper than that in the Bay of Bengal, with the deepest on the order of 200 to 250 m along the western boundary.
关键词	subduction obduction variability monsoon
DOI	10.1029/2017JC013719
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2017YFC1404002] ; National Program on Global Change and Air-Sea Interaction[GASI-IPOVAI-04] ; AoShan Talents Program - Qingdao National Laboratory for Marine Science and Technology[2015ASTP] ; National Key Research and Development Program of China[2017YFC1404002] ; national program on Global Change and Air-Sea Interaction[GASI-IPOVAI-04] ; AoShan Talents Program - Qingdao National Laboratory for Marine Science and Technology[2015ASTP]
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000441888200001
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/159907
专题	海洋环流与波动重点实验室
通讯作者	Liu, Lingling
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 3.Chinese Acad Sci, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China 4.Woods Hole Oceanog Inst, Dept Phys Oceanog, Woods Hole, MA 02543 USA
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Liu, Lingling,Huang, Rui Xin,Wang, Fan. Ventilation of a Monsoon-Dominated Ocean: Subduction and Obduction in the North Indian Ocean[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2018,123(7):4449-4463.
APA	Liu, Lingling,Huang, Rui Xin,&Wang, Fan.(2018).Ventilation of a Monsoon-Dominated Ocean: Subduction and Obduction in the North Indian Ocean.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,123(7),4449-4463.
MLA	Liu, Lingling,et al."Ventilation of a Monsoon-Dominated Ocean: Subduction and Obduction in the North Indian Ocean".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 123.7(2018):4449-4463.

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