Quantitative Analysis of the Feedback Induced by the Freshwater Flux in the Tropical Pacific Using CMIP5
文献类型：CNKI期刊论文
| 作者 | ZHI Hai; ZHANG Rong-Hua ; LIN Pengfei; WANG Lanning
|
| 发表日期 | 2015-10-10 |
| 出处 | Advances in Atmospheric Sciences
 |
| 关键词 | feedback,freshwater flux,CMIP5,correlation |
| 英文摘要 | Freshwater flux(FWF) directly affects sea surface salinity(SSS) and hence modulates sea surface temperature(SST) in the tropical Pacific. This paper quantifies a positive correlation between FWF and SST using observations and simulations of the fifth phase of the Coupled Model Intercomparison Project(CMIP5) to analyze the interannual variability in the tropical Pacific. Comparisons among the displacements of FWF,SSS and SST interannual variabilities illustrate that a large FWF variability is located in the west-central equatorial Pacific,covarying with a large SSS variability,whereas a large SST variability is located in the eastern equatorial Pacific. Most CMIP5 models can reproduce the fact that FWF leads to positive feedback to SST through an SSS anomaly as observed. However,the difference in each model's performance results from different simulation capabilities of the CMIP5 models in the magnitudes and positions of the interannual variabilities,including the mixed layer depth and the buoyancy flux in the equatorial Pacific. SSS anomalies simulated from the CMIP5 multi-model are sensitive to FWF interannual anomalies,which can lead to differences in feedback to interannual SST variabilities. The relationships among the FWF,SSS and SST interannual variabilities can be derived using linear quantitative measures from observations and the CMIP5 multi-model simulations. A 1 mm d-1FWF anomaly corresponds to an SSS anomaly of nearly0.12 psu in the western tropical Pacific and a 0.11?C SST anomaly in the eastern tropical Pacific. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by the National Natural Science Foundation of China (NSFC)(Grant Nos.41376039,41376019 and 41475101) ; the NSFC–Shandong Joint Fund for Marine Science Research Centers (Grant No.U1406401) ; the NSFC Innovative Group Grant (Project No.41421005) ; the Institute of Oceanology,Chinese Academy of Sciences (IOCAS) through the Chinese Academy of Sciences Strategic Priority Project [the Western Pacific Ocean System (WPOS)] ; supported by the Joint Center for Global Change Studies (Project No.105019) ; the Priority Academic Program Development (PAPD) of Jiangsu Higher Education Institutions |
| 卷 | v.32期:10页:25-37 |
| 语种 | 英文; |
| 分类号 | P732;P731 |
| ISSN号 | 0256-1530 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/189901]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CollegeofGlobalChangeandEarthSystemScience,BeijingNormalUniversity 2.TheEarthSystemModelingCenterandCollegeofAtmosphericSciences,NanjingUniversityofInformationScienceandTechnology 3.KeyLaboratoryofOceanCirculationandWaves,InstituteofOceanology,ChineseAcademyofSciences 4.StateKeyLaboratoryofNumericalModelingforAtmosphericSciencesandGeophysicalFluidDynamics,InstituteofAtmosphericPhysics,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | ZHI Hai,ZHANG Rong-Hua,LIN Pengfei,et al. Quantitative Analysis of the Feedback Induced by the Freshwater Flux in the Tropical Pacific Using CMIP5. 2015. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。