Anthropogenically forced increase in acidification extreme conditions in the Northeast Pacific ocean modulated by climate modes
dc.contributor.author
Desmet, Flora
dc.contributor.author
Gruber, Nicolas
dc.contributor.author
Münnich, Matthias
dc.date.accessioned
2023-05-12T12:31:35Z
dc.date.available
2023-01-25T14:38:53Z
dc.date.available
2023-05-12T08:16:42Z
dc.date.available
2023-05-12T12:31:35Z
dc.date.issued
2022-04
dc.identifier.uri
http://hdl.handle.net/20.500.11850/594866
dc.identifier.doi
10.3929/ethz-b-000594866
dc.description.abstract
The ocean acidifies as it takes up anthropogenic carbon from the atmosphere. While mean changes in ocean carbonate chemistry have been widely studied, little is known about the trends and interannual to decadal variability of episodic high acidity extreme events. Understanding the temporal variability of such extreme events is crucial to investigate their potential predictability. Using a regional ocean model coupled to a biogeochemical-ecosystem model (ROMSBEC) we found that acidification extreme events increase from 1984 through 2019 in the upper 250 m of the Northeast Pacific, mostly due to rising atmospheric CO2 concentration. The increase is enhanced in the highly productive California Current System (CCS) by changes in upwelling strength. Our study further reveals that El Niño-Southern Oscillation (ENSO) and the North Pacific Gyre Oscillation (NPGO) modulate the long-term trends in acidification extreme events, especially in the southern and central parts of the CCS. La Niña (El Niño) increases (decreases) the amount of extreme conditions experienced by the region. Similarly, the positive (negative) phase of NPGO is associated with more (less) extreme conditions. These results offer potential for predicting unusual acidity stress ahead of time in some regions of the Northeast Pacific ocean, such as the CCS.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
ETH Zurich
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.title
Anthropogenically forced increase in acidification extreme conditions in the Northeast Pacific ocean modulated by climate modes
en_US
dc.type
Other Conference Item
dc.rights.license
In Copyright - Non-Commercial Use Permitted
ethz.size
1 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.event
14th IBP PhD Congress 2022
en_US
ethz.event.location
Zurich, Switzerland
en_US
ethz.event.date
April 22, 2022
en_US
ethz.notes
Poster Session A
en_US
ethz.grant
X-EBUS: Extreme Ocean Weather Events and their Role for Ocean Biogeochemistry and Ecosystems in Eastern Boundary Upwelling Systems
en_US
ethz.publication.place
Zurich
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02721 - Inst. f. Biogeochemie u. Schadstoffdyn. / Inst. Biogeochem. and Pollutant Dynamics::03731 - Gruber, Nicolas / Gruber, Nicolas
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02721 - Inst. f. Biogeochemie u. Schadstoffdyn. / Inst. Biogeochem. and Pollutant Dynamics::03731 - Gruber, Nicolas / Gruber, Nicolas
en_US
ethz.grant.agreementno
175787
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
Projekte MINT
ethz.date.deposited
2023-01-25T14:38:53Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2024-02-02T23:07:10Z
ethz.rosetta.lastUpdated
2024-02-02T23:07:10Z
ethz.rosetta.versionExported
true
ethz.COinS
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