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

doi:10.1029/2017JC013719

	Ventilation of a Monsoon-Dominated Ocean: Subduction and Obduction in the North Indian Ocean
	Liu, Lingling 1,2; Huang, Rui Xin 3,4; Wang, Fan 1,2
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
	2018-07-01
卷号	123 期号:7 页码:4449-4463
关键词	subduction obduction variability monsoon
ISSN号	2169-9275
DOI	10.1029/2017JC013719
英文摘要	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.
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]
WOS关键词	SUBTROPICAL MODE WATER ; KUROSHIO EXTENSION SYSTEM ; MESOSCALE EDDIES ; PACIFIC ; LAYER ; VARIABILITY ; ATLANTIC ; SEA
WOS研究方向	Oceanography
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000441888200001
资助机构	National Key Research and Development Program of China ; national program on Global Change and Air-Sea Interaction ; AoShan Talents Program - Qingdao National Laboratory for Marine Science and Technology
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/12142]
专题	中国科学院青岛生物能源与过程研究所
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
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.