Rapid progression of ocean acidification in the California Current System

Nicolas Gruber, Claudine Hauri, Zouhair Lachkhar, Damian Loher, Thomas L. Frölicher, Gian Kasper Plattner

    Research output: Contribution to journalArticle

    Abstract

    Nearshore waters of the California Current System (California CS) already have a low carbonate saturation state, making them particularly susceptible to ocean acidification. We used eddy-resolving model simulations to study the potential development of ocean acidification in this system up to the year 2050 under the Special Report on Emissions Scenarios A2 and B1 scenarios. In both scenarios, the saturation state of aragonite Ωarag is projected to drop rapidly, with much of the nearshore region developing summer-long undersaturation in the top 60 meters within the next 30 years. By 2050, waters with Ωarag above 1.5 will have largely disappeared, and more than half of the waters will be undersaturated year-round. Habitats along the sea floor will become exposed to year-round undersaturation within the next 20 to 30 years. These projected events have potentially major implications for the rich and diverse ecosystem that characterizes the California CS.

    Original languageEnglish (US)
    Pages (from-to)220-223
    Number of pages4
    JournalScience
    Volume337
    Issue number6091
    DOIs
    StatePublished - Jul 13 2012

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    Oceans and Seas
    Ecosystem
    Water
    Calcium Carbonate
    Carbonates
    varespladib methyl

    ASJC Scopus subject areas

    • General

    Cite this

    Gruber, N., Hauri, C., Lachkhar, Z., Loher, D., Frölicher, T. L., & Plattner, G. K. (2012). Rapid progression of ocean acidification in the California Current System. Science, 337(6091), 220-223. https://doi.org/10.1126/science.1216773

    Rapid progression of ocean acidification in the California Current System. / Gruber, Nicolas; Hauri, Claudine; Lachkhar, Zouhair; Loher, Damian; Frölicher, Thomas L.; Plattner, Gian Kasper.

    In: Science, Vol. 337, No. 6091, 13.07.2012, p. 220-223.

    Research output: Contribution to journalArticle

    Gruber, N, Hauri, C, Lachkhar, Z, Loher, D, Frölicher, TL & Plattner, GK 2012, 'Rapid progression of ocean acidification in the California Current System', Science, vol. 337, no. 6091, pp. 220-223. https://doi.org/10.1126/science.1216773
    Gruber N, Hauri C, Lachkhar Z, Loher D, Frölicher TL, Plattner GK. Rapid progression of ocean acidification in the California Current System. Science. 2012 Jul 13;337(6091):220-223. https://doi.org/10.1126/science.1216773
    Gruber, Nicolas ; Hauri, Claudine ; Lachkhar, Zouhair ; Loher, Damian ; Frölicher, Thomas L. ; Plattner, Gian Kasper. / Rapid progression of ocean acidification in the California Current System. In: Science. 2012 ; Vol. 337, No. 6091. pp. 220-223.
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