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学科主题: Meteorology & Atmospheric Sciences
题名: The Global Subduction/Obduction Rates: Their Interannual and Decadal Variability
作者: Liu, LL ; Huang, RX
通讯作者: liull@qdio.ac.cn
刊名: JOURNAL OF CLIMATE
发表日期: 2012
卷: 25, 期:4, 页:1096-1115
部门归属: [Liu, Ling Ling] Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China; [Liu, Ling Ling] Chinese Acad Sci, S China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China; [Huang, Rui Xin] Woods Hole Oceanog Inst, Dept Phys Oceanog, Woods Hole, MA 02543 USA
项目归属: LTO
摘要: Ventilation, including subduction and obduction, for the global oceans was examined using Simple Ocean Data Assimilation (SODA) outputs. The global subduction rate averaged over the period from 1959 to 2006 is estimated at 505.8 Sv (1 Sv = 10(6) m(3) s(-1)), while the corresponding global obduction rate is estimated at 482.1 Sv. The annual subduction/obduction rates vary greatly on the interannual and decadal time scales. The global subduction rate is estimated to have increased 7.6% over the past 50 years, while the obduction rate is estimated to have increased 9.8%. Such trends may be insignificant because errors associated with the data generated by ocean data assimilation could be as large as 10%. However, a major physical mechanism that induced these trends is primarily linked to changes in the Southern Ocean. While the Southern Ocean plays a key role in global subduction and obduction rates and their variability, both the Southern Ocean and equatorial regions are critically important sites of water mass formation/erosion.
语种: 英语
WOS记录号: WOS:000300418500003
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10217
Appears in Collections:热带海洋环境国家重点实验室(LTO)_期刊论文

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Liu, LL; Huang, RX.The Global Subduction/Obduction Rates: Their Interannual and Decadal Variability,JOURNAL OF CLIMATE,2012,25(4):1096-1115
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