SOCAT Version 6

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

Due to the US Government shutdown, SOCAT data is not currently available for download via the SOCAT website.

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
  Quarter-degree 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 archived in Pangaea and can be downloaded in text format.

Download all SOCAT V6 data sets 866 Mb
Metadata overview
List of new and updated data sets
Ocean Data View format

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

 ODV SOCAT Collection  


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.