Carbon cycling dynamics in the seasonal sea-ice zone of East Antarctica ...

• Main Author: Roden, NP
• Format: Thesis
• Language: unknown
• Published: University Of Tasmania 2023
• Subjects: East Antarctica; Southern Ocean; Antarc*; Antarctica; Ocean acidification; Sea ice
• Online Access: https://dx.doi.org/10.25959/23240285.v1; https://figshare.utas.edu.au/articles/thesis/Carbon_cycling_dynamics_in_the_seasonal_sea-ice_zone_of_East_Antarctica/23240285/1

The Southern Ocean plays a critical role in the global carbon cycle, accounting for over 40% of the global ocean uptake of anthropogenic carbon dioxide (CO\\(_2\\)). Observations are often localized and widely separated in both space and time, resulting in a heavy dependence on models to characterize carbon fluxes at regional scales in this area. Subsequently, notable discrepancies exist between model and observational results within the seasonal sea-ice zone (SIZ) around Antarctica. Given the important role of atmospheric CO\\(_2\\) in the climate system and its influence on changing ocean chemistry (ocean acidification), there is a need to accurately attribute the causes of change and develop a regional understanding of the CO\\(_2\\) sink/source nature of the Southern Ocean. In this thesis, the carbon cycle in the seasonal sea-ice zone of East Antarctica was investigated across a variety of spatial and temporal scales. In this region a large variability in the drivers and timing of carbon cycling dynamics ...