Climate variability and predictability associated with the Indo-Pacific Oceanic Channel Dynamics in the CCSM4 Coupled System Model
文献类型：CNKI期刊论文
| 作者 | Yuan DL(袁东亮) ; Xu P(徐鹏); Xu TF(徐腾飞)
|
| 发表日期 | 2017-01-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | Indian Ocean Dipole El Ni?o-Southern Oscillations(ENSO) oceanic channel Community Climate System Model(CCSM4) Indonesian Throughflow ENSO predictability |
| 英文摘要 | An experiment using the Community Climate System Model(CCSM4), a participant of the Coupled Model Intercomparison Project phase-5(CMIP5), is analyzed to assess the skills of this model in simulating and predicting the climate variabilities associated with the oceanic channel dynamics across the Indo-Pacific Oceans. The results of these analyses suggest that the model is able to reproduce the observed lag correlation between the oceanic anomalies in the southeastern tropical Indian Ocean and those in the cold tongue in the eastern equatorial Pacific Ocean at a time lag of 1 year. This success may be largely attributed to the successful simulation of the interannual variations of the Indonesian Throughflow, which carries the anomalies of the Indian Ocean Dipole(IOD) into the western equatorial Pacific Ocean to produce subsurface temperature anomalies, which in turn propagate to the eastern equatorial Pacific to generate ENSO. This connection is termed the "oceanic channel dynamics" and is shown to be consistent with the observational analyses. However, the model simulates a weaker connection between the IOD and the interannual variability of the Indonesian Throughflow transport than found in the observations. In addition, the model overestimates the westerly wind anomalies in the western-central equatorial Pacific in the year following the IOD, which forces unrealistic upwelling Rossby waves in the western equatorial Pacific and downwelling Kelvin waves in the east. This assessment suggests that the CCSM4 coupled climate system has underestimated the oceanic channel dynamics and overestimated the atmospheric bridge processes. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Basic Research Program of China(973 Program)(No.2012CB956000) ; the Strategic Priority Project of Chinese Academy of Sciences(No.XDA11010301) ; the National Natural Science Foundation of China(Nos.41421005,U1406401) ; the Public Welfare Grant of China Meteorological Administration(No.GYHY201306018) ; the Global Change and Air-Sea Interactions of State Oceanic Administration(No.GASI-03-01-01-05) |
| 卷 | v.35期:01页:25-40 |
| 语种 | 英文; |
| 分类号 | P732 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/189423]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofOceanCirculationandWaves(KLOCAW),InstituteofOceanology,ChineseAcademyofSciences 2.QingdaoCollaborativeInnovationCenterofMarineScienceandTechnology 3.UniversityofChineseAcademyofSciences 4.FirstInstituteofOceanography,StateOceanicAdministration |
| 推荐引用方式 GB/T 7714 | Yuan DL,Xu P,Xu TF. Climate variability and predictability associated with the Indo-Pacific Oceanic Channel Dynamics in the CCSM4 Coupled System Model. 2017. |
入库方式： OAI收割
来源：海洋研究所
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