globalchange  > 气候减缓与适应
DOI: 10.1029/2017JC013719
Scopus记录号: 2-s2.0-85051750356
论文题名:
Ventilation of a Monsoon-Dominated Ocean: Subduction and Obduction in the North Indian Ocean
作者: Liu L.; Huang R.X.; Wang F.
刊名: Journal of Geophysical Research: Oceans
ISSN: 21699275
出版年: 2018
卷: 123, 期:7
起始页码: 4449
结束页码: 4463
语种: 英语
英文关键词: monsoon ; obduction ; subduction ; variability
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. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113581
Appears in Collections:气候减缓与适应

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作者单位: CAS Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; State Key Laboratory of Tropical Oceanography, Chinese Academy of Sciences, Guangzhou, China; Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, MA, United States

Recommended Citation:
Liu L.,Huang R.X.,Wang F.. Ventilation of a Monsoon-Dominated Ocean: Subduction and Obduction in the North Indian Ocean[J]. Journal of Geophysical Research: Oceans,2018-01-01,123(7)
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