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Takano, Yohei; Ito, Takamitsu; Deutsch, Curtis. |
We explore centennial changes in tropical Pacific oxygen (O-2) using numerical models to illustrate the dominant patterns and mechanisms under centennial climate change. Future projections from state-of-the-art Earth System Models exhibit significant model to model differences, but decreased solubility and weakened ventilation together deplete thermocline O-2 in middle to high latitudes. In contrast, the tropical thermocline O-2 undergoes much smaller changes or even a slight increase. A suite of sensitivity experiments using a coarse resolution ocean circulation and biogeochemistry model show that ocean warming is the leading cause of global deoxygenation in the thermocline across all latitudes with secondary contributions from changes in hydrological... |
Tipo: Text |
Palavras-chave: Oxygen trends; Climate change; Centennial timescale. |
Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00675/78682/80883.pdf |