SOCAT Version 2

Before using SOCAT data products, please read the Fair Data Use Statement

Data Access

SOCAT version 2 data products are available in a variety of formats:

Interactive viewers

Use the Interactive Viewers from the Live Access Server to explore and download gridded or non-gridded data following selected criteria (region, year, platform, etc.). Making maps and property plots is straight forward and a good way to to get a quick overview of the data collection.

Interactive Data Set Viewer (not specifically for version 2)
Interactive Gridded Data Viewer
Synthesis and gridded files in text format

Global and regional synthesis files, as well as gridded files, are available as text files and netcdf, respectively, via the NOAA National Centers for Environmental Information. Matlab code is available for reading these text files.

Synthesis files
All data 1.6 Gb
Arctic Data 48.2 Mb
Coastal Data 604 Mb
Indian Ocean Data 34.9 Mb
North Atlantic Data 143 Mb
North Pacific Data 57.1 Mb
Southern Ocean Data 449 Mb
Tropical Atlantic Data 70.1 Mb
Tropical Pacific Data 206 Mb
Instruction for reading synthesis files
Matlab code for reading synthesis files
252 Kb
15.8 Kb
Gridded files (only includes fCO₂ _rec)
Monthly gridded 1.2 Gb
Monthly clim gridded 41.5 Mb
Yearly gridded 125 Mb
Decadal gridded 11.9 Mb
Quarter-degree gridded monthly coastal 169 Mb
Matlab code for reading gridded files 4.1 Kb

Ocean Data View format

The synthesis and gridded files are available in Ocean Data View (ODV) format from the ODV website.

ODV SOCAT Collection

Individual data sets in text format

Individual data set files are archived in Pangaea and can be downloaded in text format from there.

Download all SOCAT V2 data sets  295 Mb
Metadata overview


For a detailed description of data products, file formats and tools, see:

Pfeil et al. (2013) A uniform, quality controlled Surface Ocean CO₂ Atlas (SOCAT), Earth Syst. Sci. Data, 5, 125-143. doi:10.5194/essd-5-125-2013
Sabine et al. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products. Earth System Science Data 5: 145-153. doi:10.5194/essd-5-145-2013


Recalculation in SOCAT V2 took place using Matlab codes by Are Olsen (University of Bergen/Bjerknes Centre for Climate Research). The Matlab codes can be obtained here.


For SOCAT V2 we would like to thank all SOCAT QC-ers, early testers, meeting participants and data contributors:

D. C. E. Bakker, B. Pfeil, K. Smith, S. Hankin, A. Olsen, S. R. Alin, C. Cosca, B. Hales, S. Harasawa, A. Kozyr, Y. Nojiri, K. M. O’Brien, U. Schuster, M. Telszewski, B. Tilbrook, C. Wada, J. Akl, L. Barbero, N. Bates, J. Boutin, W.-J. Cai, R. D. Castle, F. P. Chavez, L. Chen, M. Chierici, K. Currie, H. J. W. De Baar, W. Evans, R. A. Feely, A. Fransson, Z. Gao, N. Hardman-Mountford, M. Hoppema, W.-J. Huang, C. W. Hunt, B. Huss, T. Ichikawa, A. Jacobson, T. Johannessen, E. M. Jones, S. Jones, Sara Jutterstrøm, V. Kitidis, A. Körtzinger, P. Landsch?tzer, S. K. Lauvset, N. Lefèvre, A. B. Manke, J. T. Mathis, L. Merlivat, N. Metzl, P. Monteiro A. Murata, T. Newberger, T. Ono, G.-H. Park, K. Paterson, D. Pierrot, A. F. Ríos, C.L. Sabine, S. Saito, J. Salisbury, V. V. S. S. Sarma, R. Schlitzer, R. Sieger, I. Skjelvan, T. Steinhoff, K. Sullivan, S. C. Sutherland, T. Suzuki, A. J. Sutton,, C. Sweeney, T. Takahashi, J. Tjiputra, N. Tsurushima, S. M. A. C. van Heuven, D. Vandemark, P. Vlahos, D. W. R. Wallace, R. Wanninkhof and A. J. Watson.


SOCAT quality control is carried out by regional working groups with a global group for coordination.
The groups for SOCAT Version 2 can be found here.