Impacts of Physical and Biological Processes on Spatial and Temporal Variability of Particulate Organic Carbon in the North Pacific Ocean during 2003-2017

doi:10.1038/s41598-019-53025-4

CORC > 海洋研究所 > 中国科学院海洋研究所

	Impacts of Physical and Biological Processes on Spatial and Temporal Variability of Particulate Organic Carbon in the North Pacific Ocean during 2003-2017
	Yu, Jun 4; Wang, Xiujun 4; Fan, Hang 4; Zhang, Rong-Hua 1,2,3
刊名	SCIENTIFIC REPORTS
	2019-11-11
卷号	9 页码:15
ISSN号	2045-2322
DOI	10.1038/s41598-019-53025-4
通讯作者	Wang, Xiujun(xwang@bnu.edu.cn)
英文摘要	The North Pacific Ocean is a significant carbon sink region, but little is known about the dynamics of particulate organic carbon (POC) and the influences of physical and biological processes in this region at the basin scale. Here, we analysed high-resolution surface POC data derived from MODIS-Aqua during 2003-2017, together with satellite-derived sea surface chlorophyll and temperature (SST). There are large spatial and temporal variations in surface POC in the North Pacific. Surface POC is much lower in the subtropical region (<50 mg m(-3)) than in the subarctic region (>100 mg m(-3)), primarily resulting from the south-to-north variability in biological production. Our analyses show significant seasonal and interannual variability in surface POC. In particular, there is one peak in winter-spring in the western subtropical region and two peaks in late spring and fall in the western subarctic region. Surface POC is positively correlated with chlorophyll (r = similar to 1) and negatively correlated with SST (r = similar to-0.45, P < 0.001) south of 45 degrees N, indicating the strong influence of physically driven biological activity on the temporal variability of POC in the subtropical region. There is a significantly positive but relatively lower correlation coefficient (0.6-0.8) between POC and chlorophyll and an overall non-significantly positive correlation between POC and SST north of 45 degrees N, reflecting the reduction in the POC standing stock due to the fast sinking of large particles. The climate modes of the Pacific Decadal Oscillation, El Nino-Southern Oscillation and North Pacific Gyre Oscillation have large impacts on POC in various seasons in the subtropical region and weak influences in the subarctic region. Surface POC was anomalously high after 2013 (increased by similar to 15%) across the basin, which might be the result of complex interactions of physical and biological processes associated with an anomalous warming event (the Blob).
资助项目	Chinese Academy of Sciences' Strategic Priority Project[XDA1101010504]
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000495611100085
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/165073]
专题	中国科学院海洋研究所
通讯作者	Wang, Xiujun
作者单位	1.Univ Chinese Acad Sci, Beijing 10029, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266237, Shandong, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China 4.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yu, Jun,Wang, Xiujun,Fan, Hang,et al. Impacts of Physical and Biological Processes on Spatial and Temporal Variability of Particulate Organic Carbon in the North Pacific Ocean during 2003-2017[J]. SCIENTIFIC REPORTS,2019,9:15.
APA	Yu, Jun,Wang, Xiujun,Fan, Hang,&Zhang, Rong-Hua.(2019).Impacts of Physical and Biological Processes on Spatial and Temporal Variability of Particulate Organic Carbon in the North Pacific Ocean during 2003-2017.SCIENTIFIC REPORTS,9,15.
MLA	Yu, Jun,et al."Impacts of Physical and Biological Processes on Spatial and Temporal Variability of Particulate Organic Carbon in the North Pacific Ocean during 2003-2017".SCIENTIFIC REPORTS 9(2019):15.