DOI: 10.1002/2015GL065194
论文题名: Recent evidence for a strengthening CO2 sink in the Southern Ocean from carbonate system measurements in the Drake Passage (2002-2015)
作者: Munro D.R. ; Lovenduski N.S. ; Takahashi T. ; Stephens B.B. ; Newberger T. ; Sweeney C.
刊名: Geophysical Research Letters
ISSN: 0094-9481
EISSN: 1944-9212
出版年: 2015
卷: 42, 期: 18 起始页码: 7623
结束页码: 7630
语种: 英语
英文关键词: carbon cycling
; Southern Ocean
Scopus关键词: Atmospheric temperature
; Carbon
; Carbonation
; Oceanography
; Antarctic polar fronts
; Carbon cycling
; High-frequency surfaces
; Large-scale analysis
; Partial pressure of co
; Rate of increase
; Southern ocean
; Summer sea-surface temperatures
; Surface waters
; aragonite
; carbon cycle
; carbon dioxide
; carbonate
; polar front
; sea surface temperature
; spatiotemporal analysis
; Drake Passage
; Southern Ocean
英文摘要: We present a 13-year (2002-2015) semimonthly time series of the partial pressure of CO2 in surface water (pCO2surf) and other carbonate system parameters from the Drake Passage. This record shows a clear increase in the magnitude of the sea-air pCO2 gradient, indicating strengthening of the CO2 sink in agreement with recent large-scale analyses of the world oceans. The rate of increase in pCO2surf north of the Antarctic Polar Front (APF) is similar to the atmospheric pCO2 (pCO2atm) trend, whereas the pCO2surf increase south of the APF is slower than the pCO2atm trend. The high-frequency surface observations indicate that an absence of a winter increase in total CO2 (TCO2) and cooling summer sea surface temperatures are largely responsible for increasing CO2 uptake south of the APF. Muted winter trends in surface TCO2 also provide temporary stability to the carbonate system that is already close to undersaturation with respect to aragonite. © 2015 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945468768&doi=10.1002%2f2015GL065194&partnerID=40&md5=cee3fcbceeceb5c191510596aa5f2435
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9096
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Atmospheric and Oceanic Sciences, Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, CO, United States
Recommended Citation:
Munro D.R.,Lovenduski N.S.,Takahashi T.,et al. Recent evidence for a strengthening CO2 sink in the Southern Ocean from carbonate system measurements in the Drake Passage (2002-2015)[J]. Geophysical Research Letters,2015-01-01,42(18).