气候变化领域集成服务门户(CCPortal): Pacific Anthropogenic Carbon Between 1991 and 2017

CCPortal

DOI	10.1029/2018GB006154
	Pacific Anthropogenic Carbon Between 1991 and 2017
	Carter B.R.; Feely R.A.; Wanninkhof R.; Kouketsu S.; Sonnerup R.E.; Pardo P.C.; Sabine C.L.; Johnson G.C.; Sloyan B.M.; Murata A.; Mecking S.; Tilbrook B.; Speer K.; Talley L.D.; Millero F.J.; Wijffels S.E.; Macdonald A.M.; Gruber N.; Bullister J.L.
发表日期	2019
ISSN	0886-6236
EISSN	1944-9224
英文摘要	We estimate anthropogenic carbon (Canth) accumulation rates in the Pacific Ocean between 1991 and 2017 from 14 hydrographic sections that have been occupied two to four times over the past few decades, with most sections having been recently measured as part of the Global Ocean Ship-based Hydrographic Investigations Program. The rate of change of Canth is estimated using a new method that combines the extended multiple linear regression method with improvements to address the challenges of analyzing multiple occupations of sections spaced irregularly in time. The Canth accumulation rate over the top 1,500 m of the Pacific increased from 8.8 (±1.1, 1σ) Pg of carbon per decade between 1995 and 2005 to 11.7 (±1.1) PgC per decade between 2005 and 2015. For the entire Pacific, about half of this decadal increase in the accumulation rate is attributable to the increase in atmospheric CO2, while in the South Pacific subtropical gyre this fraction is closer to one fifth. This suggests a substantial enhancement of the accumulation of Canth in the South Pacific by circulation variability and implies that a meaningful portion of the reinvigoration of the global CO2 sink that occurred between ~2000 and ~2010 could be driven by enhanced ocean Canth uptake and advection into this gyre. Our assessment suggests that the accuracy of Canth accumulation rate reconstructions along survey lines is limited by the accuracy of the full suite of hydrographic data and that a continuation of repeated surveys is a critical component of future carbon cycle monitoring. ©2019. The Authors.
英文关键词	anthropogenic carbon; decadal variability; eMLR; ocean acidification; Pacific; repeat hydrography
语种	英语
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129760
作者单位	Joint Institute for the Study of the Atmosphere and Ocean, University of Washington, Seattle, WA, United States; Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration, Seattle, WA, United States; Atlantic Oceanographic and Meteorological Laboratory, National Oceanic and Atmospheric Administration, Miami, FL, United States; Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan; Antarctic Climate and Ecosystem Cooperative Research Center, University of Tasmania, Hobart, TAS, Australia; SOEST, University of Hawai‘i at Mānoa, Honolulu, HI, United States; CSIRO Oceans and Atmosphere, Hobart, TAS, Australia; Applied Physics Laboratory, University of Washington, Seattle, WA, United States; Commonwealth Scientific and Industrial Research Organisation (CSIRO) Marine Research and Antarctic Climate and Ecosystem Cooperative Research Center, Hobart, TAS, Australia; Department of Oceanography, The Florida State University, Tallahassee, FL, United States; Scr...
推荐引用方式 GB/T 7714	Carter B.R.,Feely R.A.,Wanninkhof R.,et al. Pacific Anthropogenic Carbon Between 1991 and 2017[J],2019.
APA	Carter B.R..,Feely R.A..,Wanninkhof R..,Kouketsu S..,Sonnerup R.E..,...&Bullister J.L..(2019).Pacific Anthropogenic Carbon Between 1991 and 2017.Global Biogeochemical Cycles.
MLA	Carter B.R.,et al."Pacific Anthropogenic Carbon Between 1991 and 2017".Global Biogeochemical Cycles (2019).