The intensity, duration, and severity of low aragonite saturation state events on the California continental shelf

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Author(s) Hauri, C., Gruber, N., McDonnell, A.M.P., Vogt, M.
Publication Type Journal Items, Publication Status: Published
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Title The intensity, duration, and severity of low aragonite saturation state events on the California continental shelf
Author(s) Hauri, C.
Gruber, N.
McDonnell, A.M.P.
Vogt, M.
Journal or Series Title Geophysical research letters
Volume Number 40
Issue Number 13
Start Page 3424
End Page 3428
ISSN 0094-8276
Publisher Wiley
Publication Place Washington, D.C., USA
Publication Date 2013-07-16
Abstract Ocean acidification will progress in an episodic manner, yet this has rarely been considered. Here, we investigate how the intensity, duration, and severity of episodic low aragonite saturation state events along the California continental shelf have changed since ~1750, and how they might change up to 2050 under the A2 scenario from the Special Report on Emissions Scenarios by the Intergovernmental Panel on Climate Change. Our model-based results suggest that between 1750 and 2010, aragonite undersaturation events along the shelf have quadrupled in their number and lengthened in duration, but that even larger changes are bound to occur within the next 20 to 40 years. Undersaturation will become very likely the norm near the seafloor by 2030, and if atmospheric CO2 increases beyond ~500 ppm, this layer will become permanently undersaturated. Combined with a fourfold increase in intensity, the resulting increase in severity of low aragonite saturation state events will substantially affect the viability of calcifying organisms and will alter ecosystem structure. Key Points Globally applicable metrics to characterize low saturation state events Metrics are applied to regional U.S. West Coast model simulations Intensity, duration and severity increase rapidly from 2010 to 2050
DOI 10.1002/grl.50618
Document Type Article
Publication Status Published
Language English
Assigned Organisational Unit(s) 03731
Organisational Unit(s)
NEBIS System Number 000047284
Source Database ID SCOPUS-84880766360
WOS-000326396600031
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@article{Hr2013,
  author = "Hauri, C. and Gruber, N. and McDonnell, A.M.P. and Vogt, M.",
  title = "{T}he intensity, duration, and severity of low aragonite saturation state events on the {C}alifornia continental shelf",
  journal = "Geophysical research letters",
  year = 2013,
  volume = "40",
  number = "13",
  pages = "3424--3428",
  month = jul,
}


E-Citations record created: Tue, 10 Sep 2013, 12:27:59 CET