DOI: 10.1007/s00382-013-1901-y
Scopus记录号: 2-s2.0-84881502129
论文题名: Oceanic origin of southeast tropical Atlantic biases
作者: Xu Z. ; Li M. ; Patricola C.M. ; Chang P.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2013
卷: 43, 期: 11 起始页码: 2915
结束页码: 2930
语种: 英语
英文摘要: Most coupled general circulation models suffer from a prominent warm sea surface temperature bias in the southeast tropical Atlantic Ocean off the coast of Africa. The origin of the bias is not understood and remains highly controversial. Previous studies suggest that the origin of the bias stems from systematic errors of atmospheric models in simulating surface heat flux and coastal wind, or poorly simulated coastal upwelling. In this study, we show, using different reanalysis and observational data sets combined with a set of eddy-resolving regional ocean model simulations, that systematic errors in ocean models also make a significant contribution to the bias problem. In particular (1) the strong warm bias at the Angola-Benguela front that is maintained by the local wind and the convergence of Angola and Benguela Currents is caused by an overshooting of the Angola Current in ocean models and (2) the alongshore warm bias to the south of the front is caused by ocean model deficiencies in simulating the sharp thermocline along the Angola coast, which is linked to biases in the equatorial thermocline, and the complex circulation system within the Benguela upwelling zone. © 2013, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54970
Appears in Collections: 过去全球变化的重建
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作者单位: Physical Oceanography Laboratory, Ocean University of China, Qingdao, China; Department of Oceanography, Texas A&M University, 3146, College Station, TX, United States; Department of Atmospheric Science, Texas A&M University, 3146, College Station, TX, United States
Recommended Citation:
Xu Z.,Li M.,Patricola C.M.,et al. Oceanic origin of southeast tropical Atlantic biases[J]. Climate Dynamics,2013-01-01,43(11)