Trajectory patterns of the annual cycle of the heat centre of the Indo-Pacific warm pool
文献类型:期刊论文
作者 | Shan, HX; Guan, YP; Huang, JP; Dong, CM |
刊名 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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出版日期 | 2017 |
卷号 | 37期号:2页码:637-647 |
关键词 | heat centre Indo-Pacific warm pool self-organizing map ensemble empirical mode decomposition |
通讯作者 | guan@scsio.ac.cn ; cmdong@gmail.com |
中文摘要 | The modulated annual cycle (MAC) of the Indo-Pacific warm pool (IPWP) heat centre location is investigated using the empirical mode decomposition-ensemble empirical mode decomposition method. The MAC and its interannual variability mainly affect the zonal and vertical locations of the heat centre; in fall and winter of El Nino years, the heat centre moves eastward from its normal location, with very little change in its meridional position. Four patterns of the heat centre trajectory in the IPWP are identified using the self-organizing map algorithm. Patterns 1 and 3 are both similar to a saddle, but pattern 1 is more winding. The shapes of patterns 2 and 4 are similar, but tilt in different directions: pattern 2 tilts southwest whereas pattern 4 tilts west. Of all the four patterns, the persistence of pattern 2 is generally relatively high. The trajectory of the heat centre develops in the sequence of patterns: 1-2-4-3-1. Pattern 1 (pattern 4) is related to the cold (warm) phase of the El Nino-Southern Oscillation (ENSO), while pattern 2 (pattern 3) corresponds to the negative (positive) phase of Indian Ocean dipole (IOD). The sequence of patterns in the trajectory of the heat centre in the IPWP is related to the IOD-ENSO interactions on a biennial timescale. |
源URL | [http://ir.scsio.ac.cn/handle/344004/16425] ![]() |
专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
推荐引用方式 GB/T 7714 | Shan, HX,Guan, YP,Huang, JP,et al. Trajectory patterns of the annual cycle of the heat centre of the Indo-Pacific warm pool[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2017,37(2):637-647. |
APA | Shan, HX,Guan, YP,Huang, JP,&Dong, CM.(2017).Trajectory patterns of the annual cycle of the heat centre of the Indo-Pacific warm pool.INTERNATIONAL JOURNAL OF CLIMATOLOGY,37(2),637-647. |
MLA | Shan, HX,et al."Trajectory patterns of the annual cycle of the heat centre of the Indo-Pacific warm pool".INTERNATIONAL JOURNAL OF CLIMATOLOGY 37.2(2017):637-647. |
入库方式: OAI收割
来源:南海海洋研究所
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