Effects of upwelling increase on ocean acidification in the California and Canary Current systems

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Author(s) Lachkar, Zouhair
Publication Type Journal Items, Publication Status: Published
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Title Effects of upwelling increase on ocean acidification in the California and Canary Current systems
Author(s) Lachkar, Zouhair
Journal or Series Title Geophysical research letters
Volume Number 41
Issue Number 1
Start Page 90
End Page 95
ISSN 0094-8276
1944-8007
Publisher American Geophysical Union
Publication Place Washington
Publication Date 2014
Keyword(s) Ocean acidification
California Current system
Canary Current system
Abstract Upwelling-favorable winds have increased in several coastal upwelling systems and may further increase in the future. The present study investigates the effects of upwelling intensification on ocean acidification in the California and Canary Current systems (CSs). Model simulations show that the volume of water undersaturated with respect to aragonite almost triples in the California CS under a doubling of wind stress. In contrast, the same wind perturbation results in the disappearance of undersaturation in the Canary CS. These contrasting responses arise from the differences in the relative contributions of circulation and biological processes to aragonite undersaturation in the two systems and the sensitivity of these processes to upwelling intensification. When combined with rising atmospheric CO2 and increased stratification, upwelling intensification accentuates acidification in the California CS and dampens it in the Canary CS. These findings highlight the challenge to predict the future evolution of ocean acidification in regions subject to concurrent disturbances.
DOI 10.1002/2013GL058726
Additional Notes Article first published online 7 January 2014
Document Type Article
Publication Status Published
Language English
Assigned Organisational Unit(s) 03731
Organisational Unit(s)
NEBIS System Number 000047284
Source Database ID FORM-1390595031
SCOPUS-84891709142
WOS-000332990200016
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@article{Lchkr2014,
  author = "Lachkar, Zouhair",
  title = "{E}ffects of upwelling increase on ocean acidification in the {C}alifornia and {C}anary {C}urrent systems",
  journal = "Geophysical research letters",
  year = 2014,
  volume = "41",
  number = "1",
  pages = "90--95",
}


E-Citations record created: Fri, 24 Jan 2014, 20:23:56 CET