Intraseasonal variability of the equatorial Pacific Ocean and its relationship with ENSO based on Self-Organizing Maps analysis
文献类型：CNKI期刊论文
| 作者 | FENG Junqiao; WANG Fujun; WANG Qingye; HU Dunxin |
| 发表日期 | 2020-07-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | intraseasonal variability equatorial Pacific E1 Ni?o-Southern Oscillation(ENSO) Self-Organizing Maps(SOM) |
| 英文摘要 | We investigated the intraseasonal variability of equatorial Pacific subsurface temperature and its relationship with El Nino-Southern Oscillation(ENSO) using Self-Organizing Maps(SOM) analysis.Variation in intraseasonal subsurface temperature is mainly found along the thermocline.The SOM patterns concentrate in basin-wide seesaw or sandwich structures along an east-west axis.Both the seesaw and sandwich SOM patterns oscillate with periods of 55 to 90 days,with the sequence of them showing features of equatorial intraseasonal Kelvin wave,and have marked interannual variations in their occurrence frequencies.Further examination shows that the interannual variability of the SOM patterns is closely related to ENSO;and maxima in composite interannual variability of the SOM patterns are located in the central Pacific during CP El Nino and in the eastern Pacific during EP El Nino.The se results imply that some of the ENSO forcing is manife sted through changes in the occurrence frequency of intraseasonal patterns,in which the change of the intraseasonal Kelvin wave plays an important role. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China (NSFC)(Nos.41976027,41976011,41730534,41476017,41576014) ; the Bureau of International Cooperation Chinese Academy of Sciences (No.132B61KYSB20170005) |
| 卷 | v.38期:04页:213-227 |
| 语种 | 英文; |
| 分类号 | P732.6 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/188106]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.FunctionLaboratoryforOceanDynamicsandClimate,QingdaoNationalLaboratoryforMarineScienceandTechnology 2.InstituteofOceanology,ChineseAcademyofSciences 3.CenterforOceanMega-Science,ChineseAcademyofSciences 4.KeyLaboratoryofOceanCirculationandWaves,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | FENG Junqiao,WANG Fujun,WANG Qingye,et al. Intraseasonal variability of the equatorial Pacific Ocean and its relationship with ENSO based on Self-Organizing Maps analysis. 2020. |
入库方式： OAI收割
来源：海洋研究所
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