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  5. 海洋环流观测与数值模拟研究室
Revisiting the Seasonal Evolution of the Indian Ocean Dipole from the Perspective of Process-Based Decomposition

文献类型：期刊论文

作者Zhang, Guangli3,4; Fan, Hanjie2; Huang, Ke2; Long, Tong3; Song, Wei3; Xie, Qiang1,3
刊名JOURNAL OF OCEAN UNIVERSITY OF CHINA
出版日期2023-12-01
卷号22期号:6页码:1453-1463
ISSN号1672-5182
关键词Indian Ocean Dipole climate feedback-response analysis method growth rate of the sea surface temperature anomaly seasonally dependent sea surface temperature anomaly water vapor feedback
DOI10.1007/s11802-023-5361-7
英文摘要The seasonal phase-locking feature of the Indian Ocean Dipole (IOD) is well documented. However, the seasonality tendency of sea surface temperature anomalies (SSTAs) during the development of the IOD has not been widely investigated. The SSTA tendencies over the two centers of the IOD peak in September-October-November are of different monthly amplitudes. The SSTA tendency over the west pole is small before June-July-August but dramatically increases in July-August-September. Meanwhile, the SSTA tendency over the east pole gradually increases before June-July-August and decreases since then. The growth rate attribution of the SSTAs is achieved by examining the roles of radiative and non-radiative air-sea coupled thermodynamic processes through the climate feedback-response analysis method (CFRAM). The CFRAM results indicate that oceanic dynamic processes largely contribute to the total SSTA tendency for initiating and fueling the IOD SSTAs, similar to previous studies. However, these results cannot explain the monthly amplitudes of SSTA tendency. Four negative feedback processes (cloud radiative feedback, atmospheric dynamic processes, surface sensible, and latent heat flux) together play a damping role opposite to the SSTA tendency. Nevertheless, the sea surface temperature-water vapor feedback shows positive feedback. Specifically, variations in SSTAs can change water vapor concentrations through evaporation, resulting in anomalous longwave radiation that amplifies the initial SSTAs through positive feedback. The effect of water vapor feedback is well in-phase with the monthly amplitudes of SSTA tendency, suggesting that the water vapor feedback might modulate the seasonally dependent SSTA tendency during the development of the IOD.
WOS关键词INDIVIDUAL FEEDBACK PROCESSES ; MODE EVENTS ; VARIABILITY ; FRAMEWORK
资助项目Second Tibetan Plateau Scientific Expedition and Research (STEP) Program[2019QZKK0102] ; National Natural Science Foundation of China[42176026] ; National Postdoctoral Program of Innovative Talents[BX2021324]
WOS研究方向Oceanography
语种英语
出版者OCEAN UNIV CHINA
WOS记录号WOS:001110507300008
资助机构Second Tibetan Plateau Scientific Expedition and Research (STEP) Program ; National Natural Science Foundation of China ; National Postdoctoral Program of Innovative Talents
源URL[http://ir.idsse.ac.cn/handle/183446/10807]  
专题深海科学研究部_海洋环流观测与数值模拟研究室
通讯作者Zhang, Guangli
作者单位1.Pilot Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao 266237, Peoples R China
2.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Peoples R China
3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
4.Sun Yat Sen Univ, Sch Marine Sci, Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Guangli,Fan, Hanjie,Huang, Ke,et al. Revisiting the Seasonal Evolution of the Indian Ocean Dipole from the Perspective of Process-Based Decomposition[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2023,22(6):1453-1463.
APA Zhang, Guangli,Fan, Hanjie,Huang, Ke,Long, Tong,Song, Wei,&Xie, Qiang.(2023).Revisiting the Seasonal Evolution of the Indian Ocean Dipole from the Perspective of Process-Based Decomposition.JOURNAL OF OCEAN UNIVERSITY OF CHINA,22(6),1453-1463.
MLA Zhang, Guangli,et al."Revisiting the Seasonal Evolution of the Indian Ocean Dipole from the Perspective of Process-Based Decomposition".JOURNAL OF OCEAN UNIVERSITY OF CHINA 22.6(2023):1453-1463.

入库方式： OAI收割

来源：深海科学与工程研究所

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