Data from: Direct observational evidence of strong CO2 uptake in the Southern Ocean
Data files
Jun 11, 2024 version files 732.11 MB
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MPI_SOM-FFN_SOCAT_Plus_SOCCOM.nc
242.90 MB
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MPI_SOM-FFN_SOCAT.nc
242.90 MB
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MPI_SOM-FFN_SOCCOM_Weighted.nc
242.90 MB
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README.md
1.76 KB
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SA_SO_EC_data.txt
973.57 KB
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SA_SO_subsamples.txt
2.45 MB
Abstract
These are the eddy covariance air-sea CO2 flux dataset, the subsampled CO2 flux products, and the neural network-based interpolation of the SOCCOM-weighted and SOCAT plus SOCCOM datasets. These datasets are used in the article 'Direct observational evidence of strong CO2 uptake in the Southern Ocean'.
https://doi.org/10.5061/dryad.b2rbnzspm
Description of the data and file structure
SA_SO_EC_data.txt: Seven cruise datasets in the Southern Ocean from 2019 to 2020, including the hourly eddy covariance (Dong et al., 2021, ACP) and bulk air-sea CO2 flux measurements and environmental variables.
SA_SO_subsamples.txt: Subsampled CO2 flux products according to the time and location of each hourly EC observation. The subsampled flux products include the SOCAT-based, SOCCOM-weighted, SOCAT plus SOCCOM-based, and model-based flux estimates.
MPI_SOM-FFN_SOCAT.nc: The neural network-based interpolation of the SOCAT v2021 dataset until 2020. The SOCAT fCO2w estimates are first averaged in 1° by 1°, monthly bins. Air-sea fluxes are then calculated using the procedure as in Landschützer et al. (2016).
MPI_SOM-FFN_SOCAT_Plus_SOCCOM.nc: The neural network-based interpolation of the SOCAT plus SOCCOM dataset until 2020. The SOCCOM fCO2w estimates are first averaged in 1° by 1°, monthly bins, which are subsequently averaged with the equivalent SOCAT 1° by 1°, monthly bins. Air-sea fluxes are then calculated using the same procedure as the other SOMFFN products (Landschützer et al., 2016; Bushinsky et al., 2019).
MPI_SOM-FFN_SOCCOM_Weighted.nc: The same procedure as 'MPI_SOM-FFN_SOCAT_Plus_SOCCOM.nc' is followed, except that south of 30°S and from 2014 to 2020, only SOCCOM float data is used. This flux product was conceived as a test to determine how much the air-sea flux would change if weighted heavily toward the float fCO2w estimates (Landschützer et al., 2016; Bushinsky et al., 2019).