Evaluation of Global Ocean Models on Simulating the Deep Western Boundary Current in the Pacific
文献类型：期刊论文
| 作者 | Jiang, Huichang1,2 ; Yu, Liu2; Xu, Hongzhou2; Vetter, Philip A.2
|
| 刊名 | ATMOSPHERE-OCEAN
 |
| 出版日期 | 2020-07-22 |
| 页码 | 12 |
| 关键词 | deep western boundary current Pacific volume transport seasonal variation global ocean model |
| ISSN号 | 0705-5900 |
| DOI | 10.1080/07055900.2020.1789547 |
| 英文摘要 | Although it is an important branch of the global overturning circulation, the deep western boundary current (DWBC) in the Pacific was poorly understood because of sparse observations. Six state-of-the-art global ocean model outputs were used herein to evaluate their performance in simulating the DWBC in the Melanesian Basin (MB) and the Central Pacific Basin (CPB). These model outputs were compared with historical observations, in terms of water-mass characteristics, spatial structure, and meridional volume transport of the DWBC, as well as seasonal variation. The results showed that most of the models reproduced the DWBC well in the two basins. Except for the Ocean General Circulation Model for the Earth Simulator (OFES) with its obvious cold and salty biases, the models had minor deviations in temperature and salinity in the deep layer. These models can reconstruct the spatial structure of the DWBC in detail and simulate appropriate transports of the eastern branch of the DWBC, ranging from 6.36 Sv to 8.55 Sv (1 Sv = 10(6) m(3)s(-1)). The western branch of the DWBC was underestimated by all the models except the Hybrid Coordinate Ocean Model (HYCOM), which simulated a transport of 4.48 Sv. For the DWBC, HYCOM performed best with a total transport of 12.84 Sv. Analysis of the temperature and salinity from Levitus data demonstrated the existence of annual and semi-annual cycles in the deep water of the MB and CPB, respectively, with a warmer and saltier water mass in summer and autumn. Overall, the six models were able to simulate the seasonal variations of temperature and volume transport of the DWBC in the Pacific. The seasonal signals probably originated from the DWBC upstream and propagated along its pathway. |
| WOS关键词 | MERIDIONAL OVERTURNING CIRCULATION ; BOTTOM WATERS ; TRANSPORT ; VARIABILITY ; FLOW |
| 资助项目 | National Key Research and Development Program of China[2018YFC0309800] ; National Natural Science Foundation of China[41576006] ; Global Change and Air-Sea Interaction Project[GASI-IPOVAI01-03] ; Chinese Academy of Sciences Frontier Basic Research Project[QYJC201910] |
| WOS研究方向 | Meteorology & Atmospheric Sciences ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000556073300001 |
| 出版者 | CMOS-SCMO |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Global Change and Air-Sea Interaction Project ; Chinese Academy of Sciences Frontier Basic Research Project |
| 源URL | [http://ir.idsse.ac.cn/handle/183446/7855]  |
| 专题 | 研究生部 深海科学研究部_海洋环流观测与数值模拟研究室 深海科学研究部_数学与计算科学研究组 |
| 通讯作者 | Xu, Hongzhou |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Hainan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Huichang,Yu, Liu,Xu, Hongzhou,et al. Evaluation of Global Ocean Models on Simulating the Deep Western Boundary Current in the Pacific[J]. ATMOSPHERE-OCEAN,2020:12. |
| APA | Jiang, Huichang,Yu, Liu,Xu, Hongzhou,&Vetter, Philip A..(2020).Evaluation of Global Ocean Models on Simulating the Deep Western Boundary Current in the Pacific.ATMOSPHERE-OCEAN,12. |
| MLA | Jiang, Huichang,et al."Evaluation of Global Ocean Models on Simulating the Deep Western Boundary Current in the Pacific".ATMOSPHERE-OCEAN (2020):12. |
入库方式： OAI收割
来源：深海科学与工程研究所
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