globalchange  > 气候变化事实与影响
DOI: 10.1002/2016GB005485
Scopus记录号: 2-s2.0-85012076928
论文题名:
Two decades of Pacific anthropogenic carbon storage and ocean acidification along Global Ocean Ship-based Hydrographic Investigations Program sections P16 and P02
作者: Carter B; R; , Feely R; A; , Mecking S; , Cross J; N; , Macdonald A; M; , Siedlecki S; A; , Talley L; D; , Sabine C; L; , Millero F; J; , Swift J; H; , Dickson A; G; , Rodgers K; B
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2017
卷: 31, 期:2
起始页码: 306
结束页码: 327
语种: 英语
英文关键词: anthropogenic carbon ; decadal variability ; eMLR ; ocean acidification ; P02 and P16 ; repeat hydrography
Scopus关键词: anthropogenic source ; aragonite ; carbon sequestration ; concentration (composition) ; cross section ; decadal variation ; global ocean ; hydrographic survey ; ocean acidification ; regression analysis ; seawater ; water column ; water mass ; Pacific Ocean
英文摘要: A modified version of the extended multiple linear regression (eMLR) method is used to estimate anthropogenic carbon concentration (Canth) changes along the Pacific P02 and P16 hydrographic sections over the past two decades. P02 is a zonal section crossing the North Pacific at 30°N, and P16 is a meridional section crossing the North and South Pacific at ~150°W. The eMLR modifications allow the uncertainties associated with choices of regression parameters to be both resolved and reduced. Canth is found to have increased throughout the water column from the surface to ~1000 m depth along both lines in both decades. Mean column Canth inventory increased consistently during the earlier (1990s–2000s) and recent (2000s–2010s) decades along P02, at rates of 0.53 ± 0.11 and 0.46 ± 0.11 mol C m−2 a−1, respectively. By contrast, Canth storage accelerated from 0.29 ± 0.10 to 0.45 ± 0.11 mol C m−2 a−1 along P16. Shifts in water mass distributions are ruled out as a potential cause of this increase, which is instead attributed to recent increases in the ventilation of the South Pacific Subtropical Cell. Decadal changes along P16 are extrapolated across the gyre to estimate a Pacific Basin average storage between 60°S and 60°N of 6.1 ± 1.5 PgC decade−1 in the earlier decade and 8.8 ± 2.2 PgC decade−1 in the recent decade. This storage estimate is large despite the shallow Pacific Canth penetration due to the large volume of the Pacific Ocean. By 2014, Canth storage had changed Pacific surface seawater pH by −0.08 to −0.14 and aragonite saturation state by −0.57 to −0.82. ©2017. The Authors.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/77774
Appears in Collections:气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: Joint Institute for the Study of the Atmosphere and Ocean, University of Washington, Seattle, WA, United States; NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States; Applied Physics Laboratory, University of Washington, Seattle, WA, United States; Woods Hole Oceanographic Institution, Woods Hole, MA, United States; Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States; Rosenstiel School of Marine and Atmospheric Science, University of Miami, Coral Gables, FL, United States; Atmospheric and Oceanic Sciences Program, Princeton University, Princeton, NJ, United States

Recommended Citation:
Carter B,R,, Feely R,et al. Two decades of Pacific anthropogenic carbon storage and ocean acidification along Global Ocean Ship-based Hydrographic Investigations Program sections P16 and P02[J]. Global Biogeochemical Cycles,2017-01-01,31(2)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Carter B]'s Articles
[R]'s Articles
[, Feely R]'s Articles
百度学术
Similar articles in Baidu Scholar
[Carter B]'s Articles
[R]'s Articles
[, Feely R]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Carter B]‘s Articles
[R]‘s Articles
[, Feely R]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.