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dc.contributor.author
Jeongmin, Yun
dc.contributor.author
Sujong, Jeong
dc.contributor.author
Gruber, Nicolas
dc.contributor.author
Gregor, Luke
dc.contributor.author
Chang-Hoi, Ho
dc.contributor.author
Piao, Shilong
dc.contributor.author
Ciais, Philippe
dc.contributor.author
Schimel, David
dc.contributor.author
Kwon, Eun Young
dc.date.accessioned
2022-10-24T10:24:23Z
dc.date.available
2022-10-22T03:09:45Z
dc.date.available
2022-10-24T10:24:23Z
dc.date.issued
2022-10-14
dc.identifier.issn
2375-2548
dc.identifier.other
10.1126/sciadv.abq0220
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/577296
dc.identifier.doi
10.3929/ethz-b-000577296
dc.description.abstract
The enhanced seasonal amplitude of atmospheric CO2 has been viewed so far primarily as a Northern Hemisphere phenomenon. Yet, analyses of atmospheric CO2 records from 49 stations between 1980 and 2018 reveal substantial trends and variations in this amplitude globally. While no significant trends can be discerned before 2000 in most places, strong positive trends emerge after 2000 in the southern high latitudes. Using factorial simulations with an atmospheric transport model and analyses of surface ocean Pco2 observations, we show that the increase is best explained by the onset of increasing seasonality of air-sea CO2 exchange over the Southern Ocean around 2000. Underlying these changes is the long-term ocean acidification trend that tends to enhance the seasonality of the air-sea fluxes, but this trend is modified by the decadal variability of the Southern Ocean carbon sink. The seasonal variations of atmospheric CO2 thus emerge as a sensitive recorder of the variations of the Southern Ocean carbon sink.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
AAAS
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Enhance seasonal amplitude of atmospheric CO2 by the changing Southern Ocean carbon sink
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2022-10-12
ethz.journal.title
Science Advances
ethz.journal.volume
8
en_US
ethz.journal.issue
41
en_US
ethz.journal.abbreviated
Sci Adv
ethz.pages.start
eabq0220
en_US
ethz.size
12 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Washington, DC
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
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
ethz.date.deposited
2022-10-22T03:09:46Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2022-10-24T10:24:24Z
ethz.rosetta.lastUpdated
2023-02-07T07:18:38Z
ethz.rosetta.versionExported
true
ethz.COinS
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