DOI: 10.1175/2011JCLI4228.1
Scopus记录号: 2-s2.0-84863031222
论文题名: The global subduction/obduction rates: Their interannual and decadal variability
作者: Liu L.L. ; Huang R.X.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 4 起始页码: 1096
结束页码: 1115
语种: 英语
Scopus关键词: Convergence
; Decadal variability
; Southern Ocean
; Trends
; Water masses
; Data processing
; Mixing
; Oceanography
; annual variation
; convergence
; data assimilation
; decadal variation
; formation mechanism
; timescale
; trend analysis
; water mass
; Southern Ocean
英文摘要: 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. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52552
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Recommended Citation:
Liu L.L.,Huang R.X.. The global subduction/obduction rates: Their interannual and decadal variability[J]. Journal of Climate,2012-01-01,25(4)