Mesoscale perturbations control inter‐ocean exchange south of Africa
Mesoscale perturbations control inter‐ocean exchange south of Africa
复制标题
中尺度扰动控制非洲南部的海洋间交换
DOI:
10.1029/2008gl035132
复制
发表时间:
2008
影响因子:
5.2
通讯作者:
M. Scheinert
中科院分区:
文献类型:
--
作者:
Biastoch;J. R. E. Lutjeharms;C. W. Böning;M. Scheinert
The quantification of inter‐ocean leakage from the South Indian to the South Atlantic Ocean is an important measure for the role of the Agulhas system in the global thermohaline circulation. To explore the specific role of mesoscale variability (such as Agulhas rings and Mozambique eddies) in this process a high‐resolution model (based on NEMO‐ORCA) for the Agulhas region has been set up. It is nested into a global coarse‐resolution model. The high‐resolution nest captures all salient features of the greater Agulhas region, including the upstream perturbations of the Agulhas Current and Natal Pulses along the African coast. A comparison of the inter‐ocean exchange in the high‐resolution nest with its coarse resolution counterpart reveals that the latter significantly over‐estimates the amount of water flowing into the Atlantic Ocean, demonstrating the need to explicitly simulate the mesoscale features. A sensitivity experiment that excludes the upstream perturbations revealed no difference in the amount of inter‐ocean exchange. However, the realistic representation of Agulhas rings and their drift path into the South Atlantic depends on the simulation of those upstream perturbations.
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DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
H. Banks;S. Stark;A. Keen
通讯作者:
A. Keen
DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
M. L. Gründlingh
通讯作者:
M. L. Gründlingh
影响因子:
4.4
作者:
Debreu, Laurent;Vouland, Christophe;Blayo, Eric
通讯作者:
Blayo, Eric
影响因子:
--
作者:
J. Lutjeharms;H. R. Roberts
通讯作者:
H. R. Roberts
影响因子:
56.9
作者:
J. Lutjeharms;R. V. Ballegooyen
通讯作者:
R. V. Ballegooyen