The Global Subduction/Obduction Rates: Their Interannual and Decadal Variability
Liu, LL; Huang, RX; liull@qdio.ac.cn
2012
发表期刊JOURNAL OF CLIMATE
ISSN0894-8755
卷号25期号:4页码:1096-1115
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.
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
学科领域Meteorology & Atmospheric Sciences
语种英语
资助项目LTO
WOS记录号WOS:000300418500003
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文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10217
专题热带海洋环境国家重点实验室(LTO)
通讯作者liull@qdio.ac.cn
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Liu, LL,Huang, RX,liull@qdio.ac.cn. The Global Subduction/Obduction Rates: Their Interannual and Decadal Variability[J]. JOURNAL OF CLIMATE,2012,25(4):1096-1115.
APA Liu, LL,Huang, RX,&liull@qdio.ac.cn.(2012).The Global Subduction/Obduction Rates: Their Interannual and Decadal Variability.JOURNAL OF CLIMATE,25(4),1096-1115.
MLA Liu, LL,et al."The Global Subduction/Obduction Rates: Their Interannual and Decadal Variability".JOURNAL OF CLIMATE 25.4(2012):1096-1115.
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