Cristin-resultat-ID: 1350166
Sist endret: 30. oktober 2017 11:14
NVI-rapporteringsår: 2016
Resultat
Vitenskapelig artikkel
2016

Evaluating CMIP5 ocean biogeochemistry and Southern Ocean carbon uptake using atmospheric potential oxygen: Present-day performance and future projection

Bidragsytere:
  • Cynthia D. Nevison
  • Manfredi Manizza
  • Ralph F. Keeling
  • Britton B. Stephens
  • Jonathan D. Bent
  • John P. Dunne
  • mfl.

Tidsskrift

Geophysical Research Letters
ISSN 0094-8276
e-ISSN 1944-8007
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2016
Volum: 43
Hefte: 5
Sider: 2077 - 2085

Importkilder

Scopus-ID: 2-s2.0-84959455877

Beskrivelse Beskrivelse

Tittel

Evaluating CMIP5 ocean biogeochemistry and Southern Ocean carbon uptake using atmospheric potential oxygen: Present-day performance and future projection

Sammendrag

Observed seasonal cycles in atmospheric potential oxygen (APO ~ O2+1.1CO2) were used to evaluate eight ocean biogeochemistry models from the Coupled Model Intercomparison Project (CMIP5). Model APO seasonal cycles were computed from the CMIP5 air-sea O2 and CO2 fluxes and compared to observations at three Southern Hemisphere monitoring sites. Four of the models captured either the observed APO seasonal amplitude or phasing relatively well, while the other four did not. Many models had an unrealistic seasonal phasing or amplitude of the CO2 flux, which in turn influenced APO. By 2100 under RCP8.5, the models projected little change in the O2 component of APO but large changes in the seasonality of the CO2 component associated with ocean acidification. The models with poorer performance on present-day APO tended to project larger net carbon uptake in the Southern Ocean, both today and in 2100.

Bidragsytere

Cynthia D. Nevison

  • Tilknyttet:
    Forfatter
    ved University of Colorado at Boulder

Manfredi Manizza

  • Tilknyttet:
    Forfatter
    ved Scripps Institution of Oceanography

Ralph F. Keeling

  • Tilknyttet:
    Forfatter
    ved Scripps Institution of Oceanography

Britton B. Stephens

  • Tilknyttet:
    Forfatter
    ved National Center for Atmospheric Research

Jonathan D. Bent

  • Tilknyttet:
    Forfatter
    ved National Center for Atmospheric Research
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