The Global Subduction/Obduction Rates: Their Interannual and Decadal Variability
The Global Subduction/Obduction Rates: Their Interannual and Decadal Variability
复制标题
全球俯冲/仰冲速率:其年际和年代际变化
DOI:
10.1175/2011jcli4228.1
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发表时间:
2012-02
影响因子:
4.9
通讯作者:
Huang, Rui Xin
中科院分区:
文献类型:
--
作者:
Liu, Ling Ling;Huang, Rui Xin
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.
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影响因子:
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DOI:
10.1016/s0422-9894(08)70730-x
发表时间:
1985
期刊:
Elsevier oceanography series
影响因子:
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J. Woods
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DOI:
10.1029/2009eo490003
发表时间:
2009-12
期刊:
Eos, Transactions American Geophysical Union
影响因子:
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R. Showstack