SCSIO OpenIR  > 热带海洋环境国家重点实验室(LTO)
Trajectory patterns of the annual cycle of the heat centre of the Indo-Pacific warm pool
Shan, HX; Guan, YP; Huang, JP; Dong, CM; guan@scsio.ac.cn; cmdong@gmail.com
2017
Source PublicationINTERNATIONAL JOURNAL OF CLIMATOLOGY
Volume37Issue:2Pages:637-647
AbstractThe 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.
Department[Shan, Haixia; Dong, Changming] Nanjing Univ Informat Sci & Technol, Coll Marine Sci, Ocean Modeling & Observat Lab, Nanjing 210044, Jiangsu, Peoples R China; [Shan, Haixia; Guan, Yuping] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China; [Shan, Haixia] Nanjing Univ Informat Sci & Technol, Jiangsu Engn Technol Res Ctr Marine Environm Dete, Nanjing, Jiangsu, Peoples R China; [Shan, Haixia] Nanjing Univ Informat Sci & Technol, Minist Educ, Key Lab Meteorol Disaster, Nanjing, Jiangsu, Peoples R China; [Shan, Haixia] Nanjing Univ Informat Sci & Technol, Joint Int Res Lab Climate & Environm Change, Nanjing, Jiangsu, Peoples R China; [Shan, Haixia] Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China; [Huang, Jianping] Lanzhou Univ, Coll Atmospher Sci, Minist Educ, Key Lab Semiarid Climate Change, Lanzhou, Peoples R China; [Dong, Changming] Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA
KeywordHeat Centre Indo-pacific Warm Pool Self-organizing Map Ensemble Empirical Mode Decomposition
Funding ProjectLTO
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/16425
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authorguan@scsio.ac.cn; cmdong@gmail.com
Recommended Citation
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,guan@scsio.ac.cn,&cmdong@gmail.com.(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.
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