Earth System Science Data
Earth System Science Data
Earth System Science Data
Articles | Volume 17, issue 10
Articles | Volume 17, issue 10
https://doi.org/10.5194/essd-17-5641-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-17-5641-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 10
Data description paper
 | 
27 Oct 2025
Data description paper |  | 27 Oct 2025

Atmospheric and ocean CO2 measurements in the South Indian Ocean made by two uncrewed surface vehicles in 2022 and 2023

Don P. Chambers, Jennifer Bonin, Adrienne Sutton, Roman Battisti, Stacy Maenner, Veronica Tamsitt, and Nancy Williams

Data sets

Surface underway measurements of partial pressure of carbon dioxide (pCO2), sea surface temperature, sea surface salinity and other parameters from Autonomous Surface Vehicle (ASV) Saildrone 1039 (EXPOCODE 316420220901) in the Indian Ocean, Southern Ocean from 2022-09-01 to 2023-04-27 (NCEI Accession 0300658). Don P. Chambers et al. https://doi.org/10.25921/6b0k-r665

Surface underway measurements of partial pressure of carbon dioxide (pCO2), sea surface temperature, sea surface salinity and other parameters from Autonomous Surface Vehicle (ASV) Saildrone 1038 (EXPOCODE 316420220616) in the Indian Ocean, Southern Ocean from 2022-06-16 to 2022-07-26 (NCEI Accession 0302848) Don P. Chambers et al. https://doi.org/10.25921/r2mt-t398

Physical and chemical surface observations in the South Indian Ocean from two uncrewed sailing vehicles Don Chambers et al. https://doi.org/10.17632/9ymsjsyhhp.1

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Short summary
Two Uncrewed Surface Vehicles (USVs) collected observations of ocean/atmosphere pCO2 in 2022–2023 in the South Indian Ocean. The primary goal of the mission was to collect data within cyclonic and anticyclonic eddies during Austral Winter along the Polar Front. Unfortunate issues with the vehicles led to observations being collected in the spring and summer months and north of the Polar Front. Twelve eddies were sampled, but no meaningful relationship between pCO2 anomalies and eddies was found.
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