Direct observational evidence of strong CO2 uptake in the Southern Ocean

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'., , , # Direct observational evidence of strong CO2 uptake in the Southern Ocean

[https://doi.org/10.5061/dryad.b2rbnzspm](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 interpolatio...