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Journal Article

The ocean carbon sinks and climate change


Sunny,  Eros
External Organizations;

Ashok,  Balakrishnan
External Organizations;

Balakrishnan,  Janaki
External Organizations;


Kurths,  Jürgen
Potsdam Institute for Climate Impact Research;

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Sunny, E., Ashok, B., Balakrishnan, J., Kurths, J. (2023): The ocean carbon sinks and climate change. - Chaos, 33, 10, 103134.

Cite as: https://publications.pik-potsdam.de/pubman/item/item_29329
The oceans act as major carbon dioxide sinks, greatly influencing global climate. Knowing how these sinks evolve would advance our understanding of climate dynamics. We construct a conceptual box model for the oceans to predict the temporal and spatial evolution of of each ocean, and the time-evolution of their salinities. Surface currents, deep water flows, freshwater influx, and major fluvial contributions are considered, as also the effect of changing temperature with time. We uncover the strongest carbon uptake to be from the Southern Ocean, followed by the Atlantic. The North Atlantic evolves into the most saline ocean with time and increasing temperatures. The Amazon River is found to have significant effects on sequestration trends. An alternative flow scenario of the Amazon is investigated, giving interesting insights into the global climate in the Miocene epoch.