Project Information
The Role of Cyclonic Upwelling Eddies in Southern Ocean CO2 Flux
Short Title:
The Role of Cyclonic Upwelling Eddies in Southern Ocean CO2 Flux
Start Date:
End Date:
We propose to better characterize the role of eddies in wintertime air-sea carbon dioxide (CO2) fluxes in the Indian sector of the Southern Ocean using two autonomous sailing vehicles called Saildrones during austral winter 2021. The Saildrones will carry sensors to directly measure atmospheric and oceanic concentrations of CO2 (pCO2), atmospheric pressure, and wind speed to allow calculation of air-sea CO2 flux at 5-km resolution and similar accuracy to an underway ship-based measurement. The Saildrone data from this mission, a 2019 mission, and BGC Argo float data from 2014–2020 will be co-located with eddies derived from satellite altimetry to quantify the relationships between eddies and ocean carbon content. The overall objectives of this project are to determine the relationship between wintertime pCO2 variability and the presence and structure of eddies and to use these relationships to create a better representation of mesoscale variability in Southern Ocean CO2 flux.
Person Role
Williams, Nancy Investigator and contact
Chambers, Don Co-Investigator
Lindstrom, Eric Co-Investigator
Carter, Brendan Co-Investigator
Tamsitt, Veronica Researcher
Bonin, Jennifer Researcher
Antarctic Ocean and Atmospheric Sciences Award # 2048840
AMD - DIF Record(s)
Data Management Plan
Product Level:
1 (processed data)
  1. Tamsitt, V. (2023). New insights into air-sea fluxes and their role in Subantarctic Mode Water formation. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 381(2249). (doi:10.1098/rsta.2022.0066)
Platforms and Instruments

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