Changes in Ocean Ventilation: Deconvolutions of Hydrographies and High-Resolution Modelling

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How the ventilation of the ocean is changing is one of the most important questions in climate science. This project aims to unlock the information that these changes imprint on observed dissolved gases, nutrients, radiocarbon, temperature, and salinity. Maximum-entropy inversions applied to hydrographic data collected under the international GO-SHIP initiative and to historical data will quantify decadal changes in ventilation in terms of the ocean's fundamental surface-to-interior propagator. This allows rigorous connections between changes in ocean ventilation and the carbon and energy balance of the climate system. Numerical experiments with state-of-the-art ocean models will elucidate the dynamics driving ventilation changes.

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Supervisory team
Mark
Holzer

Science
Mathematics and Statistics
Darryn
Waugh

Science
Mathematics and Statistics
Matthew
England

Science
Biological, Earth and Environmental Sciences
mholzer@unsw.edu.au

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