SOCAT Version 6

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

Data Access

SOCAT version 6 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
Interactive Gridded Data Viewer
Synthesis and gridded files

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 3.6 Gb
Arctic Data 194 Mb
Coastal Data 1.5 Gb
Indian Ocean Data 47 Mb
North Atlantic Data 337 Mb
North Pacific Data 105 Mb
Southern Ocean Data 949 Mb
Tropical Atlantic Data 172 Mb
Tropical Pacific Data 363 Mb
Flag E Data 189 Mb
Instructions for reading synthesis files
Matlab code for reading synthesis files
259 Kb
20 Kb 
Gridded files
Monthly gridded 3.3 Gb
Yearly gridded 190 Mb
Decadal gridded 20 Mb
Quarterly gridded monthly coastal 400 Mb
Matlab code for reading gridded files 7.2 Kb
Individual data sets in text format

Individual data set files are being archived in Pangaea and can be downloaded in text format soon.

Ocean Data View format

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


More description on SOCAT Version 6 can be found in the V6 release poster.
For a detailed description of data products, file formats and tools, see:

Bakker et al. (2016) A multi-decade record of high quality fCO₂ data in version 3 of the Surface Ocean CO₂ Atlas (SOCAT). Earth System Science Data, 8: 383-413. doi:10.5194/essd-8-383-2016
Bakker et al. (2014) An update to the Surface Ocean CO₂ Atlas (SOCAT version 2). Earth System Science Data 6: 69-90. doi:10.5194/essd-6-69-2014
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 V6 took place using Ferret scripts, based on Matlab codes by Are Olsen (University of Bergen/Bjerknes Centre for Climate Research). The Matlab codes can be obtained here .


For SOCAT V6 we would like to thank all SOCAT data contributors, quality controllers, and members of the automation team:

Bakker, Dorothee C.E.; Lauvset, Siv K.; Wanninkhof, Rik; Castaño-Primo, Rocío; Currie, Kim I.; Jones, Stephen D.; Landa, Camilla S.; Metzl, Nicolas; Nakaoka, Shin-Ichiro; Nojiri, Yukihiro; Nonaka, Isao; O’Brien, Kevin M.; Olsen, Are; Pfeil, Benjamin; Pierrot, Denis; Schuster, Ute; Smith, Karl; Sullivan, Kevin; Sutton, Adrienne; Tilbrook, Bronte; Alin, Simone; Becker, Meike; Benoit-Cattin-Breton, Alice; Bott, Randy; Bozec, Yann; Bozzano, Roberto; Burger, Eugene; Burgers, Tonya; Cai, Wei-Jun; Chen, Liqi; Chierici, Melissa; Corredor, Jorge; Cosca, Cathy; Cross, Jessica; Dandonneau, Yves; De Carlo, Eric; Dietrich, Colin; Else, Brent; Emerson, Steven; Farías, Laura; Fransson, Agneta; Garreaud, René D.; Gkritzalis, Thanos; Glockzin, Michael; González-Dávila, Melchor; Gregor, Luke; Hartman, Susan E.; Hermes, Rudolf; Hoppema, Mario; Howden, Stephan; Hunt, Christopher W.; Hydes, David; Ibanhez, J. Severino P.; Kitidis, Vassilis; Körtzinger, Arne; Kozyr, Alex; Kuwata, Akira; Lampitt, Richard; Lefèvre, Nathalie; Lo Monaco, Claire; Maenner, Stacy M.; Manke, Ansley B.; Manzello, Derek; McGillis, Wade; Mickett, John; Monteiro, Pedro M.S.; Morell, Julio; Morrison, John (Ru); Mucci, Alfonso; Munro, David R.; Musielewicz, Sylvia; Negri, Rubén; Newberger, Timothy; Newton, Jan; Noakes, Scott; O’Brien, Chris; Ólafsdóttir, Sólveig Rósa; Ólafsson, Jón S.; Ono, Tsuneo; Osborne, John; Ouyang, Zhangxian; Padín, Xose Antonio; Papakyriakou, Tim; Pluddemann, Albert J.; Rehder, Gregor; Sabine, Christopher L.; Sakurai, Keizo; Salisbury, Joe; Santana-Casiano, Juana Magdalena; Schlitzer, Reiner; Schneider, Bernd; Send, Uwe; Skjelvan, Ingunn; Steinhoff, Tobias; Sulpis, Oliver; Sutherland, Stewart C.; Sweeney, Colm; Tadokoro, Kazuaki; Takahashi, Taro; Telszewski, Maciej; Thomas, Helmuth; Tomlinson, Michael; Trull, Tom; Valdimarsson, Héðinn; van Heuven, Steven; Vandemark, Doug; Wada, Chisato; Wallace, Douglas W.R.; Watson, Andrew J.; Weller, Robert A.; Xu, Suqing.


SOCAT quality control is carried out by regional working groups with a global group for coordination.
The groups for SOCAT Version 6 can be found here.