Citing SOCAT

SOCAT’s Data Use Statement requires that each use of the SOCAT database be cited to ensure that its creators and the data providers receive due credit for their work. In addition, for studies where SOCAT data providers will possess valuable expert knowledge on data and region, SOCAT users should consider inviting those providers to collaborate at an early stage which may lead to an invitation of co-authorship.

Due to resource limitations, there is not a corresponding journal article for each release of the SOCAT dataset. Therefore it is important to include the following credits to SOCAT in your publications:

  • Citation of the dataset
  • Citation of the methods paper describing the construction of SOCAT
  • Citation of the paper describing the construction of SOCAT gridded products (if they are used)
  • Acknowledgements text

The citations and acknowledgement texts for each version of SOCAT are listed below.

SOCAT Versions

SOCAT v2024

Dataset
Bakker, Dorothee C. E.; Alin, Simone R.; Bates, Nicholas; Becker, Meike; Gkritzalis, Thanos; Jones, Steve D.; Kozyr, Alex; Lauvset, Siv K.; Metzl, Nicolas; Nakaoka, Shin-ichiro; O’Brien, Kevin M.; Olsen, Are; Pierrot, Denis; Steinhoff, Tobias; Sutton, Adrienne J.; Takao, Shintaro; Tilbrook, Bronte; Wada, Chisato; Wanninkhof, Rik; Akl, John; Arbilla, Lisandro A.; Arruda, Ricardo; Azetsu-Scott, Kumiko; Barbero, Leticia; Beatty, Cory M.; Berghoff, Carla F.; Bittig, Henry C.; Burger, Eugene F.; Campbell, Katie; Cardin, Vanessa; Collins, Andrew; Coppola, Laurent; Cronin, Margot; Cross, Jessica N.; Currie, Kim I.; Emerson, Steven R.; Enright, Matt P.; Enyo, Kazutaka; Evans, Wiley; Feely, Richard A.; Flohr, Anita; Gehrung, Martina; Glockzin, Michael; González-Dávila, Melchor; Hamnca, Siyabulela; Hartman, Sue; Howden, Stephan D.; Kam, Kitty; Kamb, Linus; Körtzinger, Arne; Kosugi, Naohiro; Lefèvre, Nathalie; Lo Monaco, Claire; Macovei, Vlad A.; Maenner Jones, Stacy; Manalang, Dana; Martz, Todd R.; Mdokwana, Baxolele; Monacci, Natalie M.; Monteiro, Pedro M. S.; Mordy, Calvin; Morell, Julio M.; Murata, Akihiko; Neill, Craig; Noh, Jae-Hoon; Nojiri, Yukihiro; Ohman, Mark D.; Olivier, Léa; Ono, Tsuneo; Petersen, Wilhelm; Plueddemann, Albert J.; Prytherch, John; Rehder, Gregor; Rutgersson, Anna; Santana-Casiano, J. Magdalena; Schlitzer, Reiner; Send, Uwe; Skjelvan, Ingunn; Sullivan, Kevin F.; T’Jampens, Michiel; Tadokoro, Kazuaki; Telszewski, Maciej; Theetaert, Hannelore; Tsanwani, Mutshutshu; Vandemark, Douglas; van Ooijen, Erik; Veccia, Martín H.; Voynova, Yoana G.; Wang, Hongjie; Weller, Robert A.; Woosley, Ryan J. (2024). Surface Ocean CO2 Atlas Database Version 2024 (SOCATv2024) (NCEI Accession 0293257). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/9wpn-th28.

Methods Paper
Bakker, D. C. E., Pfeil, B. Landa, C. S., Metzl, N., O’Brien, K. M., Olsen, A., Smith, K., Cosca, C., Harasawa, S., Jones, S. D., Nakaoka, S., Nojiri, Y., Schuster, U., Steinhoff, T., Sweeney, C., Takahashi, T., Tilbrook, B., Wada, C., Wanninkhof, R., Alin, S. R., Balestrini, C. F., Barbero, L., Bates, N. R., Bianchi, A. A., Bonou, F., Boutin, J., Bozec, Y., Burger, E. F., Cai, W.-J., Castle, R. D., Chen, L., Chierici, M., Currie, K., Evans, W., Featherstone, C., Feely, R. A., Fransson, A., Goyet, C., Greenwood, N., Gregor, L., Hankin, S., Hardman-Mountford, N. J., Harlay, J., Hauck, J., Hoppema, M., Humphreys, M. P., Hunt, C. W., Huss, B., Ibánhez, J. S. P., Johannessen, T., Keeling, R., Kitidis, V., Körtzinger, A., Kozyr, A., Krasakopoulou, E., Kuwata, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lo Monaco, C., Manke, A., Mathis, J. T., Merlivat, L., Millero, F. J., Monteiro, P. M. S., Munro, D. R., Murata, A., Newberger, T., Omar, A. M., Ono, T., Paterson, K., Pearce, D., Pierrot, D., Robbins, L. L., Saito, S., Salisbury, J., Schlitzer, R., Schneider, B., Schweitzer, R., Sieger, R., Skjelvan, I., Sullivan, K. F., Sutherland, S. C., Sutton, A. J., Tadokoro, K., Telszewski, M., Tuma, M., Van Heuven, S. M. A. C., Vandemark, D., Ward, B., Watson, A. J., Xu, S. (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.

Gridded Products Paper
Sabine, C. L., Hankin, S., Koyuk, H., Bakker, D. C. E., Pfeil, B., Olsen, A., Metzl, N., Kozyr, A., Fassbender, A., Manke, A., Malczyk, J., Akl, J., Alin, S. R., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Feely, R. A., González-Dávila, M., Goyet, C., Hardman-Mountford, N., Heinze, C., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Salisbury, J., Santana-Casiano, J. M., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Vandemark, D., Veness, T., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products, Earth Syst. Sci. Data, 5, 145-153. doi:10.5194/essd-5-145-2013.

Acknowledgements
The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP) and the Surface Ocean Lower-Atmosphere Study (SOLAS), to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.

SOCAT v2023

Dataset
Bakker, Dorothee C. E.; Alin, Simone R.; Bates, Nicholas; Becker, Meike; Feely, Richard A.; Gkritzalis, Thanos; Jones, Steve D.; Kozyr, Alex; Lauvset, Siv K.; Metzl, Nicolas; Munro, David R.; Nakaoka, Shin-ichiro; Nojiri, Yukihiro; O’Brien, Kevin M.; Olsen, Are; Pierrot, Denis; Rehder, Gregor; Steinhoff, Tobias; Sutton, Adrienne J.; Sweeney, Colm; Tilbrook, Bronte; Wada, Chisato; Wanninkhof, Rik; Akl, John; Barbero, Leticia; Beatty, Cory M.; Berghoff, Carla F.; Bittig, Henry C.; Bott, Randy; Burger, Eugene F.; Cai, Wei-Jun; Castaño-Primo, Rocío; Corredor, Jorge E.; Cronin, Margot; De Carlo, Eric H.; DeGrandpre, Michael D.; Dietrich, Colin; Drennan, William M.; Emerson, Steven R.; Enochs, Ian C.; Enyo, Kazutaka; Epherra, Lucía; Evans, Wiley; Fiedler, Björn; Fontela, Marcos; Frangoulis, Constantin; Gehrung, Martina; Giannoudi, Louisa; Glockzin, Michael; Hales, Burke; Howden, Stephan D.; Ibánhez, J. Severino P.; Kamb, Linus; Körtzinger, Arne; Lefèvre, Nathalie; Lo Monaco, Claire; Lutz, Vivian A.; Macovei, Vlad A.; Maenner Jones, Stacy; Manalang, Dana; Manzello, Derek P.; Metzl, Nicolas; Mickett, John; Millero, Frank J.; Monacci, Natalie M.; Morell, Julio M.; Musielewicz, Sylvia; Neill, Craig; Newberger, Tim; Newton, Jan; Noakes, Scott; Ólafsdóttir, Sólveig Rósa; Ono, Tsuneo; Osborne, John; Padín, Xose A.; Paulsen, Melf; Perivoliotis, Leonidas; Petersen, Wilhelm; Petihakis, George; Plueddemann, Albert J.; Rodriguez, Carmen; Rutgersson, Anna; Sabine, Christopher L.; Salisbury, Joseph E.; Schlitzer, Reiner; Skjelvan, Ingunn; Stamataki, Natalia; Sullivan, Kevin F.; Sutherland, Stewart C.; T’Jampens, Michiel; Tadokoro, Kazuaki; Tanhua, Toste; Telszewski, Maciej; Theetaert, Hannelore; Tomlinson, Michael; Vandemark, Douglas; Velo, Antón; Voynova, Yoana G.; Weller, Robert A.; Whitehead, Chris; Wimart-Rousseau, Cathy (2023). Surface Ocean CO2 Atlas Database Version 2023 (SOCATv2023) (NCEI Accession 0278913). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/r7xa-bt92.

Methods Paper
Bakker, D. C. E., Pfeil, B. Landa, C. S., Metzl, N., O’Brien, K. M., Olsen, A., Smith, K., Cosca, C., Harasawa, S., Jones, S. D., Nakaoka, S., Nojiri, Y., Schuster, U., Steinhoff, T., Sweeney, C., Takahashi, T., Tilbrook, B., Wada, C., Wanninkhof, R., Alin, S. R., Balestrini, C. F., Barbero, L., Bates, N. R., Bianchi, A. A., Bonou, F., Boutin, J., Bozec, Y., Burger, E. F., Cai, W.-J., Castle, R. D., Chen, L., Chierici, M., Currie, K., Evans, W., Featherstone, C., Feely, R. A., Fransson, A., Goyet, C., Greenwood, N., Gregor, L., Hankin, S., Hardman-Mountford, N. J., Harlay, J., Hauck, J., Hoppema, M., Humphreys, M. P., Hunt, C. W., Huss, B., Ibánhez, J. S. P., Johannessen, T., Keeling, R., Kitidis, V., Körtzinger, A., Kozyr, A., Krasakopoulou, E., Kuwata, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lo Monaco, C., Manke, A., Mathis, J. T., Merlivat, L., Millero, F. J., Monteiro, P. M. S., Munro, D. R., Murata, A., Newberger, T., Omar, A. M., Ono, T., Paterson, K., Pearce, D., Pierrot, D., Robbins, L. L., Saito, S., Salisbury, J., Schlitzer, R., Schneider, B., Schweitzer, R., Sieger, R., Skjelvan, I., Sullivan, K. F., Sutherland, S. C., Sutton, A. J., Tadokoro, K., Telszewski, M., Tuma, M., Van Heuven, S. M. A. C., Vandemark, D., Ward, B., Watson, A. J., Xu, S. (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.

Gridded Products Paper
Sabine, C. L., Hankin, S., Koyuk, H., Bakker, D. C. E., Pfeil, B., Olsen, A., Metzl, N., Kozyr, A., Fassbender, A., Manke, A., Malczyk, J., Akl, J., Alin, S. R., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Feely, R. A., González-Dávila, M., Goyet, C., Hardman-Mountford, N., Heinze, C., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Salisbury, J., Santana-Casiano, J. M., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Vandemark, D., Veness, T., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products, Earth Syst. Sci. Data, 5, 145-153. doi:10.5194/essd-5-145-2013.

Acknowledgements
The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP) and the Surface Ocean Lower-Atmosphere Study (SOLAS), to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.

SOCAT v2022

Dataset
Bakker, Dorothee C. E.; Alin, Simone R.; Becker, Meike; Bittig, Henry C.; Castaño-Primo, Rocío; Feely, Richard A.; Gkritzalis, Thanos; Kadono, Koji; Kozyr, Alex; Lauvset, Siv K.; Metzl, Nicolas; Munro, David R.; Nakaoka, Shin-ichiro; Nojiri, Yukihiro; O’Brien, Kevin M.; Olsen, Are; Pfeil, Benjamin; Pierrot, Denis; Steinhoff, Tobias; Sullivan, Kevin F.; Sutton, Adrienne J.; Sweeney, Colm; Tilbrook, Bronte; Wada, Chisato; Wanninkhof, Rik; Willstrand Wranne, Anna; Akl, John; Apelthun, Lisa B.; Bates, Nicholas; Beatty, Cory M.; Burger, Eugene F.; Cai, Wei-Jun; Cosca, Catherine E.; Corredor, Jorge E.; Cronin, Margot; Cross, Jessica N.; De Carlo, Eric H.; DeGrandpre, Michael D.; Emerson, Steven R.; Enright, Matt P.; Enyo, Kazutaka; Evans, Wiley; Frangoulis, Constantin; Fransson, Agneta; García-Ibáñez, Maribel I.; Gehrung, Martina; Giannoudi, Louisa; Glockzin, Michael; Hales, Burke; Howden, Stephan D.; Hunt, Christopher W.; Ibánhez, J. Severino P.; Jones, Steve D.; Kamb, Linus; Körtzinger, Arne; Landa, Camilla S.; Landschützer, Peter; Lefèvre, Nathalie; Lo Monaco, Claire; Macovei, Vlad A.; Maenner Jones, Stacy; Meinig, Christian; Millero, Frank J.; Monacci, Natalie M.; Mordy, Calvin; Morell, Julio M.; Murata, Akihiko; Musielewicz, Sylvia; Neill, Craig; Newberger, Tim; Nomura, Daiki; Ohman, Mark D.; Ono, Tsuneo; Passmore, Abe; Petersen, Wilhelm; Petihakis, George; Perivoliotis, Leonidas; Plueddemann, Albert J.; Rehder, Gregor; Reynaud, Thierry; Rodriguez, Carmen; Ross, Andrew C.; Rutgersson, Anna; Sabine, Christopher L.; Salisbury, Joseph E.; Schlitzer, Reiner; Send, Uwe; Skjelvan, Ingunn; Stamataki, Natalia; Sutherland, Stewart C.; Sweeney, Colm; Tadokoro, Kazuaki; Tanhua, Toste; Telszewski, Maciej; Trull, Tom; Vandemark, Douglas; van Ooijen, Erik; Voynova, Yoana G.; Wang, Hongjie; Weller, Robert A.; Whitehead, Chris; Wilson, Doug (2022). Surface Ocean CO2 Atlas Database Version 2022 (SOCATv2022) (NCEI Accession 0253659). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/1h9f-nb73.

Methods Paper
Bakker, D. C. E., Pfeil, B. Landa, C. S., Metzl, N., O’Brien, K. M., Olsen, A., Smith, K., Cosca, C., Harasawa, S., Jones, S. D., Nakaoka, S., Nojiri, Y., Schuster, U., Steinhoff, T., Sweeney, C., Takahashi, T., Tilbrook, B., Wada, C., Wanninkhof, R., Alin, S. R., Balestrini, C. F., Barbero, L., Bates, N. R., Bianchi, A. A., Bonou, F., Boutin, J., Bozec, Y., Burger, E. F., Cai, W.-J., Castle, R. D., Chen, L., Chierici, M., Currie, K., Evans, W., Featherstone, C., Feely, R. A., Fransson, A., Goyet, C., Greenwood, N., Gregor, L., Hankin, S., Hardman-Mountford, N. J., Harlay, J., Hauck, J., Hoppema, M., Humphreys, M. P., Hunt, C. W., Huss, B., Ibánhez, J. S. P., Johannessen, T., Keeling, R., Kitidis, V., Körtzinger, A., Kozyr, A., Krasakopoulou, E., Kuwata, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lo Monaco, C., Manke, A., Mathis, J. T., Merlivat, L., Millero, F. J., Monteiro, P. M. S., Munro, D. R., Murata, A., Newberger, T., Omar, A. M., Ono, T., Paterson, K., Pearce, D., Pierrot, D., Robbins, L. L., Saito, S., Salisbury, J., Schlitzer, R., Schneider, B., Schweitzer, R., Sieger, R., Skjelvan, I., Sullivan, K. F., Sutherland, S. C., Sutton, A. J., Tadokoro, K., Telszewski, M., Tuma, M., Van Heuven, S. M. A. C., Vandemark, D., Ward, B., Watson, A. J., Xu, S. (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.

Gridded Products Paper
Sabine, C. L., Hankin, S., Koyuk, H., Bakker, D. C. E., Pfeil, B., Olsen, A., Metzl, N., Kozyr, A., Fassbender, A., Manke, A., Malczyk, J., Akl, J., Alin, S. R., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Feely, R. A., González-Dávila, M., Goyet, C., Hardman-Mountford, N., Heinze, C., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Salisbury, J., Santana-Casiano, J. M., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Vandemark, D., Veness, T., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products, Earth Syst. Sci. Data, 5, 145-153. doi:10.5194/essd-5-145-2013.

Acknowledgements
The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP) and the Surface Ocean Lower-Atmosphere Study (SOLAS), to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.

SOCAT v2021

Dataset
Bakker, Dorothee C. E.; Alin, Simone R.; Castaño-Primo, Rocío; Cronin, Margot; Gkritzalis, Thanos; Kozyr, Alex; Lauvset, Siv K.; Metzl, Nicolas; Munro, David R.; Nakaoka, Shin-ichiro; O’Brien, Kevin M.; Olsen, Are; Omar, Abdirahman M.; Pfeil, Benjamin; Pierrot, Denis; Rodriguez, Carmen; Steinhoff, Tobias; Sutton, Adrienne J.; Tilbrook, Bronte; Wanninkhof, Rik; Willstrand Wranne, Anna; Ahmed, Mohamed; Andersson, Andreas; Apelthun, Lisa B.; Bates, Nicholas; Battisti, Roman; Beaumont, Laurence; Becker, Meike; Benoit-Cattin, Alice; Berghoff, Carla F.; Boutin, Jacqueline; Burger, Eugene F.; Burgers, Tonya M.; Cantoni, Carolina; Cattrijsse, André; Chierici, Melissa; Cross, Jessica N.; Coppola, Laurent; Cosca, Catherine E.; Currie, Kim I.; De Carlo, Eric H.; Else, Brent; Enright, Matt P.; Ericson, Ylva; Evans, Wiley; Feely, Richard A.; Fiedler, Björn; Fransson, Agneta; García-Ibáñez, Maribel I.; Gehrung, Martina; Glockzin, Michael; González-Dávila, Melchor; Gutekunst, Sören; Hermes, Rudolf; Humphreys, Matthew P.; Hunt, Christopher W.; Ibánhez, J. Severino P.; Jones, Steve D.; Kitidis, Vassilis; Körtzinger, Arne; Kosugi, Naohiro; Landa, Camilla S.; Landschützer, Peter; Lefèvre, Nathalie; Lo Monaco, Claire; Luchetta, Anna; Lutz, Vivian A.; Macovei, Vlad A.; Manke, Ansley B.; Merlivat, Liliane; Millero, Frank J.; Monacci, Natalie M.; Negri, Rubén M.; Newberger, Tim; Newton, Jan; Nickford, Sarah E.; Nojiri, Yukihiro; Ohman, Mark D.; Ólafsdóttir, Sólveig Rósa; Sweeney, Colm; Ono, Tsuneo; Palter, Jaime B.; Papakyriakou, Tim; Peterson, William T.; Plueddemann, Albert J.; Qi, Di; Rehder, Gregor; Ritschel, Markus; Rutgersson, Anna; Sabine, Christopher L.; Salisbury, Joseph E.; Santana-Casiano, J. Magdalena; Schlitzer, Reiner; Send, Uwe; Skjelvan, Ingunn; Smith, Karl; Sparnocchia, Stefania; Sullivan, Kevin F.; Sutherland, Stewart C.; Szuts, Zoltan B.; Tadokoro, Kazuaki; Tanhua, Toste; Telszewski, Maciej; Theetaert, Hannelore; Vandemark, Douglas; Voynova, Yoana G.; Wada, Chisato; Weller, Robert A.; Woosley, Ryan J. (2021). Surface Ocean CO2 Atlas Database Version 2021 (SOCATv2021) (NCEI Accession 0235360). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/yg69-jd96.

Methods Paper
Bakker, D. C. E., Pfeil, B. Landa, C. S., Metzl, N., O’Brien, K. M., Olsen, A., Smith, K., Cosca, C., Harasawa, S., Jones, S. D., Nakaoka, S., Nojiri, Y., Schuster, U., Steinhoff, T., Sweeney, C., Takahashi, T., Tilbrook, B., Wada, C., Wanninkhof, R., Alin, S. R., Balestrini, C. F., Barbero, L., Bates, N. R., Bianchi, A. A., Bonou, F., Boutin, J., Bozec, Y., Burger, E. F., Cai, W.-J., Castle, R. D., Chen, L., Chierici, M., Currie, K., Evans, W., Featherstone, C., Feely, R. A., Fransson, A., Goyet, C., Greenwood, N., Gregor, L., Hankin, S., Hardman-Mountford, N. J., Harlay, J., Hauck, J., Hoppema, M., Humphreys, M. P., Hunt, C. W., Huss, B., Ibánhez, J. S. P., Johannessen, T., Keeling, R., Kitidis, V., Körtzinger, A., Kozyr, A., Krasakopoulou, E., Kuwata, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lo Monaco, C., Manke, A., Mathis, J. T., Merlivat, L., Millero, F. J., Monteiro, P. M. S., Munro, D. R., Murata, A., Newberger, T., Omar, A. M., Ono, T., Paterson, K., Pearce, D., Pierrot, D., Robbins, L. L., Saito, S., Salisbury, J., Schlitzer, R., Schneider, B., Schweitzer, R., Sieger, R., Skjelvan, I., Sullivan, K. F., Sutherland, S. C., Sutton, A. J., Tadokoro, K., Telszewski, M., Tuma, M., Van Heuven, S. M. A. C., Vandemark, D., Ward, B., Watson, A. J., Xu, S. (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.

Gridded Products Paper
Sabine, C. L., Hankin, S., Koyuk, H., Bakker, D. C. E., Pfeil, B., Olsen, A., Metzl, N., Kozyr, A., Fassbender, A., Manke, A., Malczyk, J., Akl, J., Alin, S. R., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Feely, R. A., González-Dávila, M., Goyet, C., Hardman-Mountford, N., Heinze, C., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Salisbury, J., Santana-Casiano, J. M., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Vandemark, D., Veness, T., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products, Earth Syst. Sci. Data, 5, 145-153. doi:10.5194/essd-5-145-2013.

Acknowledgements
The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP) and the Surface Ocean Lower-Atmosphere Study (SOLAS), to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.

SOCAT v2020

Dataset
Bakker, Dorothee C. E.; Alin, Simone R.; Bates, Nicholas; Becker, Meike; Castaño-Primo, Rocío; Cosca, Catherine E.; Cronin, Margot; Kadono, Koji; Kozyr, Alex; Lauvset, Siv K.; Metzl, Nicolas; Munro, David R.; Nakaoka, Shin-ichiro; O’Brien, Kevin M.; Ólafsson, Jón; Olsen, Are; Pfeil, Benjamin; Pierrot, Denis; Smith, Karl; Sutton, Adrienne J.; Takahashi, Taro; Tilbrook, Bronte; Wanninkhof, Rik; Andersson, Andreas; Atamanchuk, Dariia; Benoit-Cattin, Alice; Bott, Randy; Burger, Eugene F.; Cai, Wei-Jun; Cantoni, Carolina; Collins, Andrew; Corredor, Jorge E.; Cronin, Meghan F.; Cross, Jessica N.; Currie, Kim I.; De Carlo, Eric H.; DeGrandpre, Michael D.; Dietrich, Colin; Emerson, Steven R.; Enright, Matt P.; Evans, Wiley; Feely, Richard A.; García-Ibáñez, Maribel I.; Gkritzalis, Thanos; Glockzin, Michael; Hales, Burke; Hartman, Susan E.; Hashida, Gen; Herndon, Julian; Howden, Stephan D.; Humphreys, Matthew P.; Hunt, Christopher W.; Jones, Steve D.; Kim, Seonjeong; Kitidis, Vassilis; Landa, Camilla S.; Landschützer, Peter; Lebon, Geoffrey T.; Lefèvre, Nathalie; Lo Monaco, Claire; Luchetta, Anna; Maenner Jones, Stacy; Manke, Ansley B.; Manzello, Derek P.; Mears, Patrick; Mickett, John; Monacci, Natalie M.; Morell, Julio M.; Musielewicz, Sylvia; Newberger, Tim; Newton, Jan; Noakes, Scott; Noh, Jae-Hoon; Nojiri, Yukihiro; Ohman, Mark D.; Ólafsdóttir, Sólveig Rósa; Omar, Abdirahman M.; Ono, Tsuneo; Osborne, John; Plueddemann, Albert J.; Rehder, Gregor; Sabine, Christopher L.; Salisbury, Joseph E.; Schlitzer, Reiner; Send, Uwe; Skjelvan, Ingunn; Sparnocchia, Stefania; Steinhoff, Tobias; Sullivan, Kevin F.; Sutherland, Stewart C.; Sweeney, Colm; Tadokoro, Kazuaki; Tanhua, Toste; Telszewski, Maciej; Tomlinson, Michael; Tribollet, Aline; Trull, Tom; Vandemark, Douglas; Wada, Chisato; Wallace, Douglas W. R.; Weller, Robert A.; Woosley, Ryan J. (2020). Surface Ocean CO2 Atlas Database Version 2020 (SOCATv2020) (NCEI Accession 0210711). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4xkx-ss49.

Methods Paper
Bakker, D. C. E., Pfeil, B. Landa, C. S., Metzl, N., O’Brien, K. M., Olsen, A., Smith, K., Cosca, C., Harasawa, S., Jones, S. D., Nakaoka, S., Nojiri, Y., Schuster, U., Steinhoff, T., Sweeney, C., Takahashi, T., Tilbrook, B., Wada, C., Wanninkhof, R., Alin, S. R., Balestrini, C. F., Barbero, L., Bates, N. R., Bianchi, A. A., Bonou, F., Boutin, J., Bozec, Y., Burger, E. F., Cai, W.-J., Castle, R. D., Chen, L., Chierici, M., Currie, K., Evans, W., Featherstone, C., Feely, R. A., Fransson, A., Goyet, C., Greenwood, N., Gregor, L., Hankin, S., Hardman-Mountford, N. J., Harlay, J., Hauck, J., Hoppema, M., Humphreys, M. P., Hunt, C. W., Huss, B., Ibánhez, J. S. P., Johannessen, T., Keeling, R., Kitidis, V., Körtzinger, A., Kozyr, A., Krasakopoulou, E., Kuwata, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lo Monaco, C., Manke, A., Mathis, J. T., Merlivat, L., Millero, F. J., Monteiro, P. M. S., Munro, D. R., Murata, A., Newberger, T., Omar, A. M., Ono, T., Paterson, K., Pearce, D., Pierrot, D., Robbins, L. L., Saito, S., Salisbury, J., Schlitzer, R., Schneider, B., Schweitzer, R., Sieger, R., Skjelvan, I., Sullivan, K. F., Sutherland, S. C., Sutton, A. J., Tadokoro, K., Telszewski, M., Tuma, M., Van Heuven, S. M. A. C., Vandemark, D., Ward, B., Watson, A. J., Xu, S. (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.

Gridded Products Paper
Sabine, C. L., Hankin, S., Koyuk, H., Bakker, D. C. E., Pfeil, B., Olsen, A., Metzl, N., Kozyr, A., Fassbender, A., Manke, A., Malczyk, J., Akl, J., Alin, S. R., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Feely, R. A., González-Dávila, M., Goyet, C., Hardman-Mountford, N., Heinze, C., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Salisbury, J., Santana-Casiano, J. M., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Vandemark, D., Veness, T., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products, Earth Syst. Sci. Data, 5, 145-153. doi:10.5194/essd-5-145-2013.

Acknowledgements
The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP) and the Surface Ocean Lower-Atmosphere Study (SOLAS), to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.

SOCAT v2019

Dataset
Bakker, Dorothee C. E.; Lauvset, Siv K.; Wanninkhof, Rik; O’Brien, Kevin M.; Olsen, Are; Pfeil, Benjamin; Castaño-Primo, Rocío; Currie, Kim I.; Jones, Steve D.; Karlsen, Maren K.; Kozyr, Alex; Metzl, Nicolas; Nakaoka, Shin-ichiro; Pierrot, Denis; Smith, Karl; Sullivan, Kevin F.; Sutton, Adrienne J.; Sweeney, Colm; Takahashi, Taro; Telszewski, Maciej; Tilbrook, Bronte; Wada, Chisato; Akl, John; Alin, Simone R.; Andersson, Andreas; Atamanchuk, Dariia; Becker, Meike; Benoit-Cattin, Alice; Burger, Eugene F.; Collins, Andrew; Corredor, Jorge E.; Cosca, Catherine E.; Cronin, Margot; Cross, Jessica N.; De Carlo, Eric H.; Feely, Richard A.; Gkritzalis, Thanos; Glockzin, Michael; Greenwood, Naomi; Gutekunst, Sören; Hartman, Susan E.; Herndon, Julian; Ho, David T.; Hunt, Christopher W.; Ibánhez, J. Severino P.; Johannessen, Truls; Kitidis, Vassilis; Lee, Charity M.; Lefèvre, Nathalie; Lo Monaco, Claire; Manke, Ansley B.; Mickett, John; Millero, Frank J.; Monacci, Natalie M.; Morell, Julio M.; Munro, David R.; Neill, Craig; Newberger, Tim; Newton, Jan; Nojiri, Yukihiro; Ohman, Mark D.; Ólafsdóttir, Sólveig Rósa; Omar, Abdirahman M.; Ono, Tsuneo; Papakyriakou, Tim; Park, Geun-Ha; Price, Nichole N.; Rehder, Gregor; Sakurai, Keizo; Salisbury, Joseph E.; Schlitzer, Reiner; Send, Uwe; Skjelvan, Ingunn; Sutherland, Stewart C.; Tadokoro, Kazuaki; Tanhua, Toste; Tomlinson, Michael; Trull, Tom; Vandemark, Douglas; Wallace, Douglas W. R.; Weller, Robert A.; Woosley, Ryan J. (2019). Surface Ocean CO2 Atlas Database Version 2019 (SOCATv2019) (NCEI Accession 0190072). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/cpbz-qa92.

Methods Paper
Bakker, D. C. E., Pfeil, B. Landa, C. S., Metzl, N., O’Brien, K. M., Olsen, A., Smith, K., Cosca, C., Harasawa, S., Jones, S. D., Nakaoka, S., Nojiri, Y., Schuster, U., Steinhoff, T., Sweeney, C., Takahashi, T., Tilbrook, B., Wada, C., Wanninkhof, R., Alin, S. R., Balestrini, C. F., Barbero, L., Bates, N. R., Bianchi, A. A., Bonou, F., Boutin, J., Bozec, Y., Burger, E. F., Cai, W.-J., Castle, R. D., Chen, L., Chierici, M., Currie, K., Evans, W., Featherstone, C., Feely, R. A., Fransson, A., Goyet, C., Greenwood, N., Gregor, L., Hankin, S., Hardman-Mountford, N. J., Harlay, J., Hauck, J., Hoppema, M., Humphreys, M. P., Hunt, C. W., Huss, B., Ibánhez, J. S. P., Johannessen, T., Keeling, R., Kitidis, V., Körtzinger, A., Kozyr, A., Krasakopoulou, E., Kuwata, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lo Monaco, C., Manke, A., Mathis, J. T., Merlivat, L., Millero, F. J., Monteiro, P. M. S., Munro, D. R., Murata, A., Newberger, T., Omar, A. M., Ono, T., Paterson, K., Pearce, D., Pierrot, D., Robbins, L. L., Saito, S., Salisbury, J., Schlitzer, R., Schneider, B., Schweitzer, R., Sieger, R., Skjelvan, I., Sullivan, K. F., Sutherland, S. C., Sutton, A. J., Tadokoro, K., Telszewski, M., Tuma, M., Van Heuven, S. M. A. C., Vandemark, D., Ward, B., Watson, A. J., Xu, S. (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.

Gridded Products Paper
Sabine, C. L., Hankin, S., Koyuk, H., Bakker, D. C. E., Pfeil, B., Olsen, A., Metzl, N., Kozyr, A., Fassbender, A., Manke, A., Malczyk, J., Akl, J., Alin, S. R., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Feely, R. A., González-Dávila, M., Goyet, C., Hardman-Mountford, N., Heinze, C., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Salisbury, J., Santana-Casiano, J. M., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Vandemark, D., Veness, T., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products, Earth Syst. Sci. Data, 5, 145-153. doi:10.5194/essd-5-145-2013.

Acknowledgements
The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP) and the Surface Ocean Lower-Atmosphere Study (SOLAS), to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.

SOCAT v6

Dataset
Bakker, Dorothee C. E.; Lauvset, Siv K.; Wanninkhof, Rik; Castaño-Primo, Rocío; Currie, Kim I.; Jones, Steve 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 F.; Sutton, Adrienne J.; Tilbrook, Bronte; Alin, Simone R.; Becker, Meike; Benoit-Cattin, Alice; Bott, Randy; Bozec, Yann; Bozzano, Roberto; Burger, Eugene F.; Burgers, Tonya M.; Cai, Wei-Jun; Chen, Liqi; Chierici, Melissa; Corredor, Jorge E.; Cosca, Catherine E.; Cross, Jessica N.; Dandonneau, Yves; De Carlo, Eric H.; Dietrich, Colin; Else, Brent; Emerson, Steven R.; 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 D.; Hunt, Christopher W.; Hydes, David; Ibánhez, J. Severino P.; Kitidis, Vassilis; Körtzinger, Arne; Kozyr, Alex; Kuwata, Akira; Lampitt, Richard; Lefèvre, Nathalie; Lo Monaco, Claire; Maenner Jones, Stacy; Manke, Ansley B.; Manzello, Derek P.; McGillis, Wade R.; Mickett, John; Monteiro, Pedro M. S.; Morell, Julio M.; Morrison, J. Ruairidh; Omar, Abdirahman M.; Mucci, Alfonso; Munro, David R.; Musielewicz, Sylvia; Negri, Rubén M.; Newberger, Tim; Newton, Jan; Noakes, Scott; O’Brien, Chris; Ólafsdóttir, Sólveig Rósa; Ólafsson, Jón; Ono, Tsuneo; Osborne, John; Ouyang, Zhangxian; Padín, Xose A.; Papakyriakou, Tim; Plueddemann, Albert J.; Rehder, Gregor; Sabine, Christopher L.; Sakurai, Keizo; Salisbury, Joseph E.; Santana-Casiano, J. Magdalena; Schlitzer, Reiner; Schneider, Bernd; Send, Uwe; Skjelvan, Ingunn; Steinhoff, Tobias; Sulpis, Olivier; Sutherland, Stewart C.; Sweeney, Colm; Tadokoro, Kazuaki; Takahashi, Taro; Telszewski, Maciej; Thomas, Helmuth; Tomlinson, Michael; Trull, Tom; Valdimarsson, Héðinn; van Heuven, Steven M. A. C.; Vandemark, Douglas; Wada, Chisato; Wallace, Douglas W. R.; Watson, Andrew J.; Weller, Robert A.; Xu, Suqing (2018). Surface Ocean CO2 Atlas Database Version 6 (SOCATv6) (NCEI Accession 0173715). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v51z42r8.

Methods Paper
Bakker, D. C. E., Pfeil, B. Landa, C. S., Metzl, N., O’Brien, K. M., Olsen, A., Smith, K., Cosca, C., Harasawa, S., Jones, S. D., Nakaoka, S., Nojiri, Y., Schuster, U., Steinhoff, T., Sweeney, C., Takahashi, T., Tilbrook, B., Wada, C., Wanninkhof, R., Alin, S. R., Balestrini, C. F., Barbero, L., Bates, N. R., Bianchi, A. A., Bonou, F., Boutin, J., Bozec, Y., Burger, E. F., Cai, W.-J., Castle, R. D., Chen, L., Chierici, M., Currie, K., Evans, W., Featherstone, C., Feely, R. A., Fransson, A., Goyet, C., Greenwood, N., Gregor, L., Hankin, S., Hardman-Mountford, N. J., Harlay, J., Hauck, J., Hoppema, M., Humphreys, M. P., Hunt, C. W., Huss, B., Ibánhez, J. S. P., Johannessen, T., Keeling, R., Kitidis, V., Körtzinger, A., Kozyr, A., Krasakopoulou, E., Kuwata, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lo Monaco, C., Manke, A., Mathis, J. T., Merlivat, L., Millero, F. J., Monteiro, P. M. S., Munro, D. R., Murata, A., Newberger, T., Omar, A. M., Ono, T., Paterson, K., Pearce, D., Pierrot, D., Robbins, L. L., Saito, S., Salisbury, J., Schlitzer, R., Schneider, B., Schweitzer, R., Sieger, R., Skjelvan, I., Sullivan, K. F., Sutherland, S. C., Sutton, A. J., Tadokoro, K., Telszewski, M., Tuma, M., Van Heuven, S. M. A. C., Vandemark, D., Ward, B., Watson, A. J., Xu, S. (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.

Gridded Products Paper
Sabine, C. L., Hankin, S., Koyuk, H., Bakker, D. C. E., Pfeil, B., Olsen, A., Metzl, N., Kozyr, A., Fassbender, A., Manke, A., Malczyk, J., Akl, J., Alin, S. R., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Feely, R. A., González-Dávila, M., Goyet, C., Hardman-Mountford, N., Heinze, C., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Salisbury, J., Santana-Casiano, J. M., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Vandemark, D., Veness, T., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products, Earth Syst. Sci. Data, 5, 145-153. doi:10.5194/essd-5-145-2013.

Acknowledgements
The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP), Surface Ocean Lower-Atmosphere Study (SOLAS) and the Integrated Marine Biosphere Research (IMBeR) program, to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.

SOCAT v5

Dataset
Bakker, Dorothee C. E.; Pfeil, Benjamin; Landa, Camilla S.; Metzl, Nicolas; O’Brien, Kevin M.; Olsen, Are; Smith, Karl; Cosca, Catherine E.; Harasawa, Sumiko; Jones, Steve D.; Nakaoka, Shin-ichiro; Nojiri, Yukihiro; Schuster, Ute; Steinhoff, Tobias; Sweeney, Colm; Takahashi, Taro; Tilbrook, Bronte; Wada, Chisato; Wanninkhof, Rik; Alin, Simone R.; Balestrini, Carlos F.; Barbero, Leticia; Bates, Nicholas; Bianchi, Alejandro A.; Bonou, Frédéric; Boutin, Jacqueline; Bozec, Yann; Burger, Eugene F.; Cai, Wei-Jun; Castle, Robert D.; Chen, Liqi; Chierici, Melissa; Currie, Kim I.; Evans, Wiley; Featherstone, Charles; Feely, Richard A.; Fransson, Agneta; Goyet, Catherine; Greenwood, Naomi; Gregor, Luke; Hankin, Steve; Hardman-Mountford, Nick; Harlay, Jérôme; Hauck, Judith; Hoppema, Mario; Humphreys, Matthew P.; Hunt, Christopher W.; Huss, Betty E.; Ibánhez, J. Severino P.; Johannessen, Truls; Keeling, Ralph F.; Kitidis, Vassilis; Körtzinger, Arne; Kozyr, Alex; Krasakopoulou, Evangelia; Kuwata, Akira; Landschützer, Peter; Lauvset, Siv K.; Lefèvre, Nathalie; Lo Monaco, Claire; Manke, Ansley B.; Mathis, Jeremy T.; Merlivat, Liliane; Millero, Frank J.; Monteiro, Pedro M. S.; Munro, David R.; Murata, Akihiko; Newberger, Tim; Omar, Abdirahman M.; Ono, Tsuneo; Paterson, Kristina; Pearce, David J.; Pierrot, Denis; Robbins, Lisa L.; Saito, Shu; Salisbury, Joseph E.; Schlitzer, Reiner; Schneider, Bernd; Schweitzer, Roland; Sieger, Rainer; Skjelvan, Ingunn; Sullivan, Kevin F.; Sutherland, Stewart C.; Sutton, Adrienne J.; Tadokoro, Kazuaki; Telszewski, Maciej; Tuma, Matthias; van Heuven, Steven M. A. C.; Vandemark, Douglas; Ward, Brian; Watson, Andrew J.; Xu, Suqing (2017). Surface Ocean CO2 Atlas Database Version 5 (SOCATv5) (NCEI Accession 0163180). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/8cea-c727.

Methods Paper
Bakker, D. C. E., Pfeil, B. Landa, C. S., Metzl, N., O’Brien, K. M., Olsen, A., Smith, K., Cosca, C., Harasawa, S., Jones, S. D., Nakaoka, S., Nojiri, Y., Schuster, U., Steinhoff, T., Sweeney, C., Takahashi, T., Tilbrook, B., Wada, C., Wanninkhof, R., Alin, S. R., Balestrini, C. F., Barbero, L., Bates, N. R., Bianchi, A. A., Bonou, F., Boutin, J., Bozec, Y., Burger, E. F., Cai, W.-J., Castle, R. D., Chen, L., Chierici, M., Currie, K., Evans, W., Featherstone, C., Feely, R. A., Fransson, A., Goyet, C., Greenwood, N., Gregor, L., Hankin, S., Hardman-Mountford, N. J., Harlay, J., Hauck, J., Hoppema, M., Humphreys, M. P., Hunt, C. W., Huss, B., Ibánhez, J. S. P., Johannessen, T., Keeling, R., Kitidis, V., Körtzinger, A., Kozyr, A., Krasakopoulou, E., Kuwata, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lo Monaco, C., Manke, A., Mathis, J. T., Merlivat, L., Millero, F. J., Monteiro, P. M. S., Munro, D. R., Murata, A., Newberger, T., Omar, A. M., Ono, T., Paterson, K., Pearce, D., Pierrot, D., Robbins, L. L., Saito, S., Salisbury, J., Schlitzer, R., Schneider, B., Schweitzer, R., Sieger, R., Skjelvan, I., Sullivan, K. F., Sutherland, S. C., Sutton, A. J., Tadokoro, K., Telszewski, M., Tuma, M., Van Heuven, S. M. A. C., Vandemark, D., Ward, B., Watson, A. J., Xu, S. (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.

Gridded Products Paper
Sabine, C. L., Hankin, S., Koyuk, H., Bakker, D. C. E., Pfeil, B., Olsen, A., Metzl, N., Kozyr, A., Fassbender, A., Manke, A., Malczyk, J., Akl, J., Alin, S. R., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Feely, R. A., González-Dávila, M., Goyet, C., Hardman-Mountford, N., Heinze, C., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Salisbury, J., Santana-Casiano, J. M., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Vandemark, D., Veness, T., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products, Earth Syst. Sci. Data, 5, 145-153. doi:10.5194/essd-5-145-2013.

Acknowledgements
The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP), Surface Ocean Lower-Atmosphere Study (SOLAS) and the Integrated Marine Biosphere Research (IMBeR) program, to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.

SOCAT v4

Dataset
Bakker, Dorothee C. E.; Pfeil, Benjamin; Smith, Karl; Harasawa, Sumiko; Landa, Camilla S.; Nakaoka, Shin-ichiro; Nojiri, Yukihiro; Metzl, Nicolas; O’Brien, Kevin M.; Olsen, Are; Schuster, Ute; Tilbrook, Bronte; Wanninkhof, Rik; Alin, Simone R.; Barbero, Leticia; Bates, Nicholas; Bianchi, Alejandro A.; Bonou, Frédéric; Boutin, Jacqueline; Bozec, Yann; Burger, Eugene F.; Castle, Robert D.; Chen, Liqi; Chierici, Melissa; Cosca, Catherine E.; Currie, Kim I.; Evans, Wiley; Featherstone, Charles; Feely, Richard A.; Fransson, Agneta; Greenwood, Naomi; Gregor, Luke; Hankin, Steve; Hardman-Mountford, Nick; Harlay, Jérôme; Hauck, Judith; Hoppema, Mario; Humphreys, Matthew P.; Hunt, Christopher W.; Johannessen, Truls; Jones, Steve D.; Keeling, Ralph F.; Kitidis, Vassilis; Kozyr, Alex; Krasakopoulou, Evangelia; Kuwata, Akira; Lauvset, Siv K.; Lo Monaco, Claire; Manke, Ansley B.; Mathis, Jeremy T.; Merlivat, Liliane; Monteiro, Pedro M. S.; Munro, David R.; Murata, Akihiko; Newberger, Tim; Omar, Abdirahman M.; Ono, Tsuneo; Paterson, Kristina; Pierrot, Denis; Robbins, Lisa L.; Sabine, Christopher L.; Saito, Shu; Salisbury, Joseph E.; Schneider, Bernd; Schlitzer, Reiner; Sieger, Rainer; Skjelvan, Ingunn; Steinhoff, Tobias; Sullivan, Kevin F.; Sutherland, Stewart C.; Sutton, Adrienne J.; Sweeney, Colm; Tadokoro, Kazuaki; Takahashi, Taro; Telszewski, Maciej; van Heuven, Steven M. A. C.; Vandemark, Douglas; Wada, Chisato; Ward, Brian; Watson, Andrew J. (2017). Surface Ocean CO2 Atlas (SOCAT) version 4, 1968-11-16 to 2014-12-31 (NCEI Accession 0161129). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.socat_v4_grid.

Methods Paper
Bakker, D. C. E., Pfeil, B. Landa, C. S., Metzl, N., O’Brien, K. M., Olsen, A., Smith, K., Cosca, C., Harasawa, S., Jones, S. D., Nakaoka, S., Nojiri, Y., Schuster, U., Steinhoff, T., Sweeney, C., Takahashi, T., Tilbrook, B., Wada, C., Wanninkhof, R., Alin, S. R., Balestrini, C. F., Barbero, L., Bates, N. R., Bianchi, A. A., Bonou, F., Boutin, J., Bozec, Y., Burger, E. F., Cai, W.-J., Castle, R. D., Chen, L., Chierici, M., Currie, K., Evans, W., Featherstone, C., Feely, R. A., Fransson, A., Goyet, C., Greenwood, N., Gregor, L., Hankin, S., Hardman-Mountford, N. J., Harlay, J., Hauck, J., Hoppema, M., Humphreys, M. P., Hunt, C. W., Huss, B., Ibánhez, J. S. P., Johannessen, T., Keeling, R., Kitidis, V., Körtzinger, A., Kozyr, A., Krasakopoulou, E., Kuwata, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lo Monaco, C., Manke, A., Mathis, J. T., Merlivat, L., Millero, F. J., Monteiro, P. M. S., Munro, D. R., Murata, A., Newberger, T., Omar, A. M., Ono, T., Paterson, K., Pearce, D., Pierrot, D., Robbins, L. L., Saito, S., Salisbury, J., Schlitzer, R., Schneider, B., Schweitzer, R., Sieger, R., Skjelvan, I., Sullivan, K. F., Sutherland, S. C., Sutton, A. J., Tadokoro, K., Telszewski, M., Tuma, M., Van Heuven, S. M. A. C., Vandemark, D., Ward, B., Watson, A. J., Xu, S. (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.

Gridded Products Paper
Sabine, C. L., Hankin, S., Koyuk, H., Bakker, D. C. E., Pfeil, B., Olsen, A., Metzl, N., Kozyr, A., Fassbender, A., Manke, A., Malczyk, J., Akl, J., Alin, S. R., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Feely, R. A., González-Dávila, M., Goyet, C., Hardman-Mountford, N., Heinze, C., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Salisbury, J., Santana-Casiano, J. M., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Vandemark, D., Veness, T., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products, Earth Syst. Sci. Data, 5, 145-153. doi:10.5194/essd-5-145-2013.

Acknowledgements
The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP), Surface Ocean Lower-Atmosphere Study (SOLAS) and the Integrated Marine Biosphere Research (IMBeR) program, to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.

SOCAT v3

Dataset
Bakker, Dorothee C. E.; Pfeil, Benjamin; Smith, Karl; Harasawa, Sumiko; Landa, Camilla S.; Nakaoka, Shin-ichiro; Nojiri, Yukihiro; Metzl, Nicolas; O’Brien, Kevin M.; Olsen, Are; Schuster, Ute; Tilbrook, Bronte; Wanninkhof, Rik; Alin, Simone R.; Barbero, Leticia; Bates, Nicholas; Bianchi, Alejandro A.; Bonou, Frédéric; Boutin, Jacqueline; Bozec, Yann; Burger, Eugene F.; Castle, Robert D.; Chen, Liqi; Chierici, Melissa; Cosca, Catherine E.; Currie, Kim I.; Evans, Wiley; Featherstone, Charles; Feely, Richard A.; Fransson, Agneta; Greenwood, Naomi; Gregor, Luke; Hankin, Steve; Hardman-Mountford, Nick; Harlay, Jérôme; Hauck, Judith; Hoppema, Mario; Humphreys, Matthew P.; Hunt, Christopher W.; Johannessen, Truls; Jones, Steve D.; Keeling, Ralph F.; Kitidis, Vassilis; Kozyr, Alex; Krasakopoulou, Evangelia; Kuwata, Akira; Lauvset, Siv K.; Lo Monaco, Claire; Manke, Ansley B.; Mathis, Jeremy T.; Merlivat, Liliane; Monteiro, Pedro M. S.; Munro, David R.; Murata, Akihiko; Newberger, Tim; Omar, Abdirahman M.; Ono, Tsuneo; Paterson, Kristina; Pierrot, Denis; Robbins, Lisa L.; Sabine, Christopher L.; Saito, Shu; Salisbury, Joseph E.; Schneider, Bernd; Schlitzer, Reiner; Sieger, Rainer; Skjelvan, Ingunn; Steinhoff, Tobias; Sullivan, Kevin F.; Sutherland, Stewart C.; Sutton, Adrienne J.; Sweeney, Colm; Tadokoro, Kazuaki; Takahashi, Taro; Telszewski, Maciej; van Heuven, Steven M. A. C.; Vandemark, Douglas; Wada, Chisato; Ward, Brian; Watson, Andrew J. (2017). Surface Ocean CO2 Atlas (SOCAT) version 3 from 1968-11-16 to 2013-12-31 (NCEI Accession 0160918). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.socat_v3_grid.

Methods Paper
Bakker, D. C. E., Pfeil, B. Landa, C. S., Metzl, N., O’Brien, K. M., Olsen, A., Smith, K., Cosca, C., Harasawa, S., Jones, S. D., Nakaoka, S., Nojiri, Y., Schuster, U., Steinhoff, T., Sweeney, C., Takahashi, T., Tilbrook, B., Wada, C., Wanninkhof, R., Alin, S. R., Balestrini, C. F., Barbero, L., Bates, N. R., Bianchi, A. A., Bonou, F., Boutin, J., Bozec, Y., Burger, E. F., Cai, W.-J., Castle, R. D., Chen, L., Chierici, M., Currie, K., Evans, W., Featherstone, C., Feely, R. A., Fransson, A., Goyet, C., Greenwood, N., Gregor, L., Hankin, S., Hardman-Mountford, N. J., Harlay, J., Hauck, J., Hoppema, M., Humphreys, M. P., Hunt, C. W., Huss, B., Ibánhez, J. S. P., Johannessen, T., Keeling, R., Kitidis, V., Körtzinger, A., Kozyr, A., Krasakopoulou, E., Kuwata, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lo Monaco, C., Manke, A., Mathis, J. T., Merlivat, L., Millero, F. J., Monteiro, P. M. S., Munro, D. R., Murata, A., Newberger, T., Omar, A. M., Ono, T., Paterson, K., Pearce, D., Pierrot, D., Robbins, L. L., Saito, S., Salisbury, J., Schlitzer, R., Schneider, B., Schweitzer, R., Sieger, R., Skjelvan, I., Sullivan, K. F., Sutherland, S. C., Sutton, A. J., Tadokoro, K., Telszewski, M., Tuma, M., Van Heuven, S. M. A. C., Vandemark, D., Ward, B., Watson, A. J., Xu, S. (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.

Gridded Products Paper
Sabine, C. L., Hankin, S., Koyuk, H., Bakker, D. C. E., Pfeil, B., Olsen, A., Metzl, N., Kozyr, A., Fassbender, A., Manke, A., Malczyk, J., Akl, J., Alin, S. R., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Feely, R. A., González-Dávila, M., Goyet, C., Hardman-Mountford, N., Heinze, C., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Salisbury, J., Santana-Casiano, J. M., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Vandemark, D., Veness, T., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products, Earth Syst. Sci. Data, 5, 145-153. doi:10.5194/essd-5-145-2013.

Acknowledgements
The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP), Surface Ocean Lower-Atmosphere Study (SOLAS) and the Integrated Marine Biosphere Research (IMBeR) program, to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.

SOCAT v2

Dataset
Bakker, Dorothee C. E.; Pfeil, Benjamin; Smith, Karl; Hankin, Steve; Olsen, Are; Alin, Simone R.; Cosca, Catherine E.; Harasawa, Sumiko; Kozyr, Alex; Nojiri, Yukihiro; O’Brien, Kevin M.; Schuster, Ute; Telszewski, Maciej; Tilbrook, Bronte; Wada, Chisato; Akl, John; Barbero, Leticia; Bates, Nicholas; Boutin, Jacqueline; Bozec, Yann; Castle, Robert D.; Chavez, Francisco P.; Chen, Liqi; Chierici, Melissa; Currie, Kim I.; de Baar, Hein J. W.; Evans, Wiley; Feely, Richard A.; Fransson, Agneta; Gao, Zhongyong; Hales, Burke; Hardman-Mountford, Nick; Hoppema, Mario; Hunt, Christopher W.; Huss, Betty E.; Ichikawa, Tadafumi; Johannessen, Truls; Jones, Elizabeth M.; Jones, Steve D.; Kitidis, Vassilis; Lauvset, Siv K.; Manke, Ansley B.; Mathis, Jeremy T.; Merlivat, Liliane; Metzl, Nicolas; Murata, Akihiko; Newberger, Tim; Omar, Abdirahman M.; Ono, Tsuneo; Paterson, Kristina; Pierrot, Denis; Sabine, Christopher L.; Saito, Shu; Salisbury, Joseph E.; Sarma, Vedula V. S. S.; Schlitzer, Reiner; Sieger, Rainer; Skjelvan, Ingunn; Steinhoff, Tobias; Sullivan, Kevin F.; Sun, Heng; Sutton, Adrienne J.; Suzuki, Toru; Sweeney, Colm; Takahashi, Taro; Tjiputra, Jerry; Tsurushima, Nobuo; van Heuven, Steven M. A. C.; Vandemark, Douglas; Vlahos, Penny; Wallace, Douglas W. R.; Wanninkhof, Rik; Watson, Andrew J. (2017). Surface Ocean CO2 Atlas (SOCAT) version 2, 1968-11-16 to 2011-12-31 (NCEI Accession 0157631). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/fm0n-5t39.

Methods Paper
Bakker, D. C. E., Pfeil, B., Smith, K., Hankin, S., Olsen, A., Alin, S. R., Cosca, C., Harasawa, S., Kozyr, A., Nojiri, Y., O’Brien, K. M., Schuster, U., Telszewski, M., Tilbrook, B., Wada, C., Akl, J., Barbero, L., Bates, N. R., Boutin, J., Bozec, Y., Cai, W.-J., Castle, R. D., Chavez, F. P., Chen, L., Chierici, M., Currie, K., de Baar, H. J. W., Evans, W., Feely, R. A., Fransson, A., Gao, Z., Hales, B., Hardman-Mountford, N. J., Hoppema, M., Huang, W.-J., Hunt, C. W., Huss, B., Ichikawa, T., Johannessen, T., Jones, E. M., Jones, S. D., Jutterström, S., Kitidis, V., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Manke, A. B., Mathis, J. T., Merlivat, L., Metzl, N., Murata, A., Newberger, T., Omar, A. M., Ono, T., Park, G.-H., Paterson, K., Pierrot, D., Ríos, A. F., Sabine, C. L., Saito, S., Salisbury, J., Sarma, V. V. S. S., Schlitzer, R., Sieger, R., Skjelvan, I., Steinhoff, T., Sullivan, K. F., Sun, H., Sutton, A. J., Suzuki, T., Sweeney, C., Takahashi, T., Tjiputra, J., Tsurushima, N., van Heuven, S. M. A. C., Vandemark, D., Vlahos, P., Wallace, D. W. R., Wanninkhof, R., and Watson, A. J.: An update to the Surface Ocean CO2 Atlas (SOCAT version 2), Earth Syst. Sci. Data, 6, 69–90, https://doi.org/10.5194/essd-6-69-2014, 2014.

Gridded Products Paper
Sabine, C. L., Hankin, S., Koyuk, H., Bakker, D. C. E., Pfeil, B., Olsen, A., Metzl, N., Kozyr, A., Fassbender, A., Manke, A., Malczyk, J., Akl, J., Alin, S. R., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Feely, R. A., González-Dávila, M., Goyet, C., Hardman-Mountford, N., Heinze, C., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Salisbury, J., Santana-Casiano, J. M., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Vandemark, D., Veness, T., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products, Earth Syst. Sci. Data, 5, 145-153. doi:10.5194/essd-5-145-2013.

Acknowledgements
The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP), Surface Ocean Lower-Atmosphere Study (SOLAS) and the Integrated Marine Biosphere Research (IMBeR) program, to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.

SOCAT v1.5

Dataset
Pfeil, Benjamin; Olsen, Are; Bakker, Dorothee C. E.; Hankin, Steve; Koyuk, Heather; Kozyr, Alex; Malczyk, Jeremy; Manke, Ansley B.; Metzl, Nicolas; Sabine, Christopher L.; Akl, John; Alin, Simone R.; Bates, Nicholas; Bellerby, Richard G. J.; Borges, Alberto; Boutin, Jacqueline; Brown, Peter J.; Chavez, Francisco P.; Chen, Chen-Tung A.; Cosca, Catherine E.; Fassbender, Andrea J.; Feely, Richard A.; Goyet, Catherine; Hales, Burke; Hardman-Mountford, Nick; Heinze, Christoph; Hood, Maria; Hoppema, Mario; Hunt, Christopher W.; Hydes, David; Ishii, Masao; Johannessen, Truls; Jones, Steve D.; Key, Robert M.; Lauvset, Siv K.; Lenton, Andrew; Lourantou, Anna; Merlivat, Liliane; Midorikawa, Takashi; Mintrop, Ludger J.; Miyazaki, Chihiro; Murata, Akihiko; Nakadate, Akira; Nakano, Yoshiyuki; Nakaoka, Shin-ichiro; Nojiri, Yukihiro; Omar, Abdirahman M.; Padín, Xose A.; Paterson, Kristina; Pierrot, Denis; Poisson, Alain; Santana-Casiano, J. Magdalena; Salisbury, Joseph E.; Sarma, Vedula V. S. S.; Schlitzer, Reiner; Schneider, Bernd; Schuster, Ute; Sieger, Rainer; Skjelvan, Ingunn; Steinhoff, Tobias; Suzuki, Toru; Takahashi, Taro; Tedesco, Kathy; Telszewski, Maciej; Thomas, Helmuth; Tilbrook, Bronte; Tjiputra, Jerry; Vandemark, Douglas; Veness, Tony; Wanninkhof, Rik; Watson, Andrew J.; Weiss, Ray F.; Wong, C. S.; Yoshikawa-Inoue, Hisayuki (2013). Surface Ocean CO2 Atlas Database Version 1.5 (SOCATv1.5) (NCEI Accession 0101726). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/ga9e-1p10.

Methods Paper
Pfeil, B., Olsen, A., Bakker, D. C. E., Hankin, S., Koyuk, H., Kozyr, A., Malczyk, J., Manke, A., Metzl, N., Sabine, C. L., Akl, J., Alin, S. R., Bates, N., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Fassbender, A. J., Feely, R. A., González-Dávila, M., Goyet, C., Hales, B., Hardman-Mountford, N., Heinze, C., Hood, M., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Jones, S. D., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Santana-Casiano, J. M., Salisbury, J., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Tjiputra, J., Vandemark, D., Veness, T., Wanninkhof, R., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H.: A uniform, quality controlled Surface Ocean CO2 Atlas (SOCAT), Earth Syst. Sci. Data, 5, 125–143, https://doi.org/10.5194/essd-5-125-2013, 2013.

Gridded Products Paper
Sabine, C. L., Hankin, S., Koyuk, H., Bakker, D. C. E., Pfeil, B., Olsen, A., Metzl, N., Kozyr, A., Fassbender, A., Manke, A., Malczyk, J., Akl, J., Alin, S. R., Bellerby, R. G. J., Borges, A., Boutin, J., Brown, P. J., Cai, W.-J., Chavez, F. P., Chen, A., Cosca, C., Feely, R. A., González-Dávila, M., Goyet, C., Hardman-Mountford, N., Heinze, C., Hoppema, M., Hunt, C. W., Hydes, D., Ishii, M., Johannessen, T., Key, R. M., Körtzinger, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lenton, A., Lourantou, A., Merlivat, L., Midorikawa, T., Mintrop, L., Miyazaki, C., Murata, A., Nakadate, A., Nakano, Y., Nakaoka, S., Nojiri, Y., Omar, A. M., Padin, X. A., Park, G.-H., Paterson, K., Perez, F. F., Pierrot, D., Poisson, A., Ríos, A. F., Salisbury, J., Santana-Casiano, J. M., Sarma, V. V. S. S., Schlitzer, R., Schneider, B., Schuster, U., Sieger, R., Skjelvan, I., Steinhoff, T., Suzuki, T., Takahashi, T., Tedesco, K., Telszewski, M., Thomas, H., Tilbrook, B., Vandemark, D., Veness, T., Watson, A. J., Weiss, R., Wong, C. S., and Yoshikawa-Inoue, H. (2013) Surface Ocean CO2 Atlas (SOCAT) gridded data products, Earth Syst. Sci. Data, 5, 145-153. doi:10.5194/essd-5-145-2013.

Acknowledgements
The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the SCOR Infrastructural Project International Ocean Carbon Coordination Project (IOCCP), Surface Ocean Lower-Atmosphere Study (SOLAS) and the Integrated Marine Biosphere Research (IMBeR) program, to deliver a uniform, quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT.