Interannual-to-Decadal Variations of Particulate Organic Carbon and the Contribution of Phytoplankton in the Tropical Pacific During 1981-2016: A Model Study

doi:10.1029/2020JC016515

IOCAS-IR > 海洋环流与波动重点实验室

	Interannual-to-Decadal Variations of Particulate Organic Carbon and the Contribution of Phytoplankton in the Tropical Pacific During 1981-2016: A Model Study
	Yu, Jun 1; Wang, Xiujun 1,2; Murtugudde, Raghu 2; Tian, Feng 3,4,5; Zhang, Rong-Hua3,4,5,6,7
	2021
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
卷号	126 期号:1 页码:24
通讯作者	Wang, Xiujun([email protected])
摘要	The tropical Pacific plays an important role in the global carbon cycle. However, little is known on the large-scale variability of particulate organic carbon (POC) and the contribution of phytoplankton carbon (PhyC) in this region. Here, we used a basin-scale model to study the spatio-temporal variability of POC and PhyC contribution over 1981-2016 in the tropical Pacific. The model reproduces the spatial and temporal variability of the observed POC in this region. Both satellite and modeled POC show a clear west-to-east increase (from 40 to 60 mg m(-3)) in the equatorial Pacific. The contribution of PhyC to POC is greater in the iron-limited eastern region (similar to 30%) than in the nitrogen-limited western region (similar to 20%). There are strong interannual variabilities in both POC and the contribution of PhyC to POC, which are largely associated with the El Nino-Southern Oscillation (ENSO) events. POC stock and downward flux show significant increases (10%-20%) in the frontal region (near the dateline) but smaller changes in the eastern equatorial Pacific post-1998, due to the Pacific Decadal Oscillation (PDO) regime shift. There were significant increases (similar to 5-10% to the west and similar to 5% to the east) in the transfer efficiency of POC across the basin during 1999-2014 due to the PDO regime shift. This study highlights the impacts of iron and nitrogen co-limitations on phytoplankton dynamics and physical forcing on the carbon cycle of the tropical Pacific, with implications for the global carbon cycle.
关键词	climate impact decadal variability interannal variability tropical Pacific particulate organic carbon phytoplankton contribution
DOI	10.1029/2020JC016515
收录类别	SCI
语种	英语
资助项目	National Key Basic Research and Development Programs[2017YFC1404102]; Chinese Academy of Sciences' Strategic Priority Project[XDA1101010501]; Chinese Academy of Sciences' Strategic Priority Project[XDA1101010504]; National Natural Science Foundation of China[41490640]; National Natural Science Foundation of China[41490644]; Indian Institute of Technology, India
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000623522000023
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/170121
专题	海洋环流与波动重点实验室
通讯作者	Wang, Xiujun
作者单位	1.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing, Peoples R China 2.Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA 3.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao, Shandong, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Shandong, Peoples R China 5.Pilot Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao, Peoples R China 6.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Qingdao, Peoples R China 7.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yu, Jun,Wang, Xiujun,Murtugudde, Raghu,et al. Interannual-to-Decadal Variations of Particulate Organic Carbon and the Contribution of Phytoplankton in the Tropical Pacific During 1981-2016: A Model Study[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2021,126(1):24.
APA	Yu, Jun,Wang, Xiujun,Murtugudde, Raghu,Tian, Feng,&Zhang, Rong-Hua.(2021).Interannual-to-Decadal Variations of Particulate Organic Carbon and the Contribution of Phytoplankton in the Tropical Pacific During 1981-2016: A Model Study.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,126(1),24.
MLA	Yu, Jun,et al."Interannual-to-Decadal Variations of Particulate Organic Carbon and the Contribution of Phytoplankton in the Tropical Pacific During 1981-2016: A Model Study".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 126.1(2021):24.

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