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6. Best Practice Data Standards for Discrete Chemical Oceanographic Observations

Author

Jiang, Li-Qing, Pierrot, Denis, Wanninkhof, Rik, Feely, Richard A, Tilbrook, Bronte, Alin, Simone, Barbero, Leticia, Byrne, Robert H, Carter, Brendan R, Dickson, Andrew G, Gattuso, Jean-Pierre, Greeley, Dana, Hoppema, Mario, Humphreys, Matthew P, Karstensen, Johannes, Lange, Nico, Lauvset, Siv K, Lewis, Ernie R, Olsen, Are, Pérez, Fiz F, Sabine, Christopher, Sharp, Jonathan D, Tanhua, Toste, Trull, Thomas W, Velo, Anton, Allegra, Andrew J, Barker, Paul, Burger, Eugene, Cai, Wei-Jun, Chen, Chen-Tung A, Cross, Jessica, Garcia, Hernan, Hernandez-Ayon, Jose Martin, Hu, Xinping, Kozyr, Alex, Langdon, Chris, Lee, Kitack, Salisbury, Joe, Wang, Zhaohui Aleck, and Xue, Liang

Subjects
Life Below Water, data standard for chemical oceanography, discrete chemical oceanographic observations, column header abbreviations, WOCE WHP exchange formats, quality control flags, content vs.& nbsp, concentration, CO2SYS, TEOS-10, Oceanography, Ecology
Abstract

Effective data management plays a key role in oceanographic research as cruise-based data, collected from different laboratories and expeditions, are commonly compiled to investigate regional to global oceanographic processes. Here we describe new and updated best practice data standards for discrete chemical oceanographic observations, specifically those dealing with column header abbreviations, quality control flags, missing value indicators, and standardized calculation of certain properties. These data standards have been developed with the goals of improving the current practices of the scientific community and promoting their international usage. These guidelines are intended to standardize data files for data sharing and submission into permanent archives. They will facilitate future quality control and synthesis efforts and lead to better data interpretation. In turn, this will promote research in ocean biogeochemistry, such as studies of carbon cycling and ocean acidification, on regional to global scales. These best practice standards are not mandatory. Agencies, institutes, universities, or research vessels can continue using different data standards if it is important for them to maintain historical consistency. However, it is hoped that they will be adopted as widely as possible to facilitate consistency and to achieve the goals stated above.

Published
2022

7. High spatial resolution global ocean metagenomes from Bio-GO-SHIP repeat hydrography transects.

Author

Larkin, Alyse A, Garcia, Catherine A, Garcia, Nathan, Brock, Melissa L, Lee, Jenna A, Ustick, Lucas J, Barbero, Leticia, Carter, Brendan R, Sonnerup, Rolf E, Talley, Lynne D, Tarran, Glen A, Volkov, Denis L, and Martiny, Adam C

Subjects
Seawater, Genomic Library, Oceans and Seas, Metagenome, Metagenomics, Microbiota
Abstract

Detailed descriptions of microbial communities have lagged far behind physical and chemical measurements in the marine environment. Here, we present 971 globally distributed surface ocean metagenomes collected at high spatio-temporal resolution. Our low-cost metagenomic sequencing protocol produced 3.65 terabases of data, where the median number of base pairs per sample was 3.41 billion. The median distance between sampling stations was 26 km. The metagenomic libraries described here were collected as a part of a biological initiative for the Global Ocean Ship-based Hydrographic Investigations Program, or "Bio-GO-SHIP." One of the primary aims of GO-SHIP is to produce high spatial and vertical resolution measurements of key state variables to directly quantify climate change impacts on ocean environments. By similarly collecting marine metagenomes at high spatiotemporal resolution, we expect that this dataset will help answer questions about the link between microbial communities and biogeochemical fluxes in a changing ocean.

Published
2021

8. The annual update GLODAPv2.2023: the global interior ocean biogeochemical data product

Author

Lauvset, Siv K., primary, Lange, Nico, additional, Tanhua, Toste, additional, Bittig, Henry C., additional, Olsen, Are, additional, Kozyr, Alex, additional, Álvarez, Marta, additional, Azetsu-Scott, Kumiko, additional, Brown, Peter J., additional, Carter, Brendan R., additional, Cotrim da Cunha, Leticia, additional, Hoppema, Mario, additional, Humphreys, Matthew P., additional, Ishii, Masao, additional, Jeansson, Emil, additional, Murata, Akihiko, additional, Müller, Jens Daniel, additional, Pérez, Fiz F., additional, Schirnick, Carsten, additional, Steinfeldt, Reiner, additional, Suzuki, Toru, additional, Ulfsbo, Adam, additional, Velo, Anton, additional, Woosley, Ryan J., additional, and Key, Robert M., additional

Published
2024
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10. An assessment of ocean alkalinity enhancement using aqueous hydroxides: kinetics, efficiency, and precipitation thresholds.

Author

Ringham, Mallory C., Hirtle, Nathan, Shaw, Cody, Lu, Xi, Herndon, Julian, Carter, Brendan R., and Eisaman, Matthew D.

Subjects
ATMOSPHERIC carbon dioxide, SEA water analysis, CARBON dioxide, FIELD research, ALKALINITY
Abstract

Ocean alkalinity enhancement (OAE) is a promising approach to marine carbon dioxide removal (mCDR) that leverages the large surface area and carbon storage capacity of the oceans to sequester atmospheric CO2 as dissolved bicarbonate (HCO3-). One OAE method involves the conversion of salt in seawater into aqueous alkalinity (NaOH), which is returned to the ocean. The resulting increase in seawater pH and alkalinity causes a shift in dissolved inorganic carbon (DIC) speciation toward carbonate and a decrease in the surface ocean p CO2. The shift in the p CO2 results in enhanced uptake of atmospheric CO2 by the seawater due to gas exchange. In this study, we systematically test the efficiency of CO2 uptake in seawater treated with NaOH at aquarium (15 L) and tank (6000 L) scales to establish operational boundaries for safety and efficiency in advance of scaling up to field experiments. CO2 equilibration occurred on the order of weeks to months, depending on circulation, air forcing, and air bubbling conditions within the test tanks. An increase of ∼0.7 –0.9 mol DIC per mol added alkalinity (in the form of NaOH) was observed through analysis of seawater bottle samples and pH sensor data, consistent with the value expected given the values of the carbonate system equilibrium calculations for the range of salinities and temperatures tested. Mineral precipitation occurred when the bulk seawater pH exceeded 10.0 and Ωaragonite exceeded 30.0. This precipitation was dominated by Mg(OH)2 over hours to 1 d before shifting to CaCO3,aragonite precipitation. These data, combined with models of the dilution and advection of alkaline plumes, will allow the estimation of the amount of carbon dioxide removal expected from OAE pilot studies. Future experiments should better approximate field conditions including sediment interactions, biological activity, ocean circulation, air–sea gas exchange rates, and mixing zone dynamics. [ABSTRACT FROM AUTHOR]

Published
2024
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11. Climatological distribution of ocean acidification variables along the North American ocean margins.

Author

Jiang, Li-Qing, Boyer, Tim P., Paver, Christopher R., Yoo, Hyelim, Reagan, James R., Alin, Simone R., Barbero, Leticia, Carter, Brendan R., Feely, Richard A., and Wanninkhof, Rik

Subjects
OCEAN acidification, FISHERIES, HYDROGEN ions, CARBON dioxide, AQUACULTURE industry, CALCITE
Abstract

Climatologies, which depict mean fields of oceanographic variables on a regular geographic grid, and atlases, which provide graphical depictions of specific areas, play pivotal roles in comprehending the societal vulnerabilities linked to ocean acidification (OA). This significance is particularly pronounced in coastal regions where most economic activities, such as commercial and recreational fisheries and aquaculture industries, occur. In this paper, we unveil a comprehensive data product featuring coastal ocean acidification climatologies and atlases, encompassing the fugacity of carbon dioxide, pH on the total scale, total hydrogen ion content, free hydrogen ion content, carbonate ion content, aragonite saturation state, calcite saturation state, Revelle factor, total dissolved inorganic carbon content, and total alkalinity content. These variables are provided on 1° × 1° spatial grids at 14 standardized depth levels, ranging from the surface to a depth of 500 m, along the North American ocean margins, defined as the region between the coastline and a distance of 200 nautical miles (∼370 km) offshore. The climatologies and atlases were developed using the World Ocean Atlas (WOA) gridding methods of the NOAA National Centers for Environmental Information (NCEI) based on the recently released Coastal Ocean Data Analysis Product in North America (CODAP-NA), along with the 2021 update to the Global Ocean Data Analysis Project version 2 (GLODAPv2.2021) data product. The relevant variables were adjusted to the index year of 2010. The data product is available in NetCDF (https://doi.org/10.25921/g8pb-zy76 , Jiang et al., 2022b) on the NOAA Ocean Carbon and Acidification Data System: https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0270962.html (last access: 15 July 2024). It is recommended to use the objectively analyzed mean fields (with "_an" suffix) for each variable. The atlases can be accessed at https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/synthesis/nacoastal.html (last access: 15 July 2024). [ABSTRACT FROM AUTHOR]

Published
2024
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12. Spectrophotometrically derived seawater CO2‐system assessments: Parameter calculations using pH do not require measurements at standard temperatures.

Author

Schockman, Katelyn M., Byrne, Robert H., Carter, Brendan R., and Feely, Richard A.

Subjects
UNITS of measurement, CARBON dioxide in seawater, TEMPERATURE measurements, EARTH temperature, OCEAN temperature
Abstract

The temperature range of Earth's open‐ocean waters is roughly 0–30°C, yet our understanding of the seawater carbon dioxide (CO2) system is largely derived from analyses conducted within a narrow temperature range (e.g., laboratory temperature of 20°C or 25°C). Herein, we address two aspects of open‐ocean CO2‐system measurements and modeling: (1) a highly precise spectrophotometric technique is used to determine bicarbonate dissociation constants (K2) in seawater at temperatures as low as 3°C and (2) a cruise dataset uniquely including total scale pH measurements at two temperatures is used for CO2‐system internal consistency comparisons at 12°C and 25°C. Our pK2 parameterization (where pK = −log K) is applicable for broad ranges of salinity (20 ≤ SP ≤ 40) and temperature (3°C ≤ t ≤ 35°C). Our CO2‐system internal consistency evaluation (comparison of measured and calculated CO2‐system parameters) utilized data obtained during NOAA's 2021 West Coast Ocean Acidification Cruise: total alkalinity (TA), total dissolved inorganic carbon (DIC), pH measured at 25°C, and pH measured at 12°C (n = 265). Results demonstrate that, relative to calculations utilizing the TA, DIC pair, agreement between measured and calculated parameters is improved when either TA or DIC is paired with pH measurements at either temperature. Calculations of CO2 fugacity (fCO2) and aragonite saturation state (Ωar) using pH measurements made at 25°C or 12°C (paired with either TA or DIC) are statistically indistinguishable. Results also suggest that the temperature dependence of current CO2‐system dissociation constants need further refinement. [ABSTRACT FROM AUTHOR]

Published
2024
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15. Supplementary material to "The annual update GLODAPv2.2023: the global interior ocean biogeochemical data product"

Author

Lauvset, Siv K., primary, Lange, Nico, additional, Tanhua, Toste, additional, Bittig, Henry C., additional, Olsen, Are, additional, Kozyr, Alex, additional, Álvarez, Marta, additional, Azetsu-Scott, Kumiko, additional, Brown, Peter J., additional, Carter, Brendan R., additional, Cotrim da Cunha, Leticia, additional, Hoppema, Mario, additional, Humphreys, Matthew P., additional, Ishii, Masao, additional, Jeansson, Emil, additional, Murata, Akihiko, additional, Müller, Jens Daniel, additional, Perez, Fiz F., additional, Schirnick, Carsten, additional, Steinfeldt, Reiner, additional, Suzuki, Toru, additional, Ulfsbo, Adam, additional, Velo, Anton, additional, Woosley, Ryan J., additional, and Key, Robert, additional

Published
2024
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16. Spectrophotometrically derived seawater CO2‐system assessments: Parameter calculations using pH do not require measurements at standard temperatures

Author

Schockman, Katelyn M., Byrne, Robert H., Carter, Brendan R., and Feely, Richard A.

Abstract

The temperature range of Earth's open‐ocean waters is roughly 0–30°C, yet our understanding of the seawater carbon dioxide (CO2) system is largely derived from analyses conducted within a narrow temperature range (e.g., laboratory temperature of 20°C or 25°C). Herein, we address two aspects of open‐ocean CO2‐system measurements and modeling: (1) a highly precise spectrophotometric technique is used to determine bicarbonate dissociation constants (K2) in seawater at temperatures as low as 3°C and (2) a cruise dataset uniquely including total scale pH measurements at two temperatures is used for CO2‐system internal consistency comparisons at 12°C and 25°C. Our pK2parameterization (where pK= −log K) is applicable for broad ranges of salinity (20 ≤ SP≤ 40) and temperature (3°C ≤ t≤ 35°C). Our CO2‐system internal consistency evaluation (comparison of measured and calculated CO2‐system parameters) utilized data obtained during NOAA's 2021 West Coast Ocean Acidification Cruise: total alkalinity (TA), total dissolved inorganic carbon (DIC), pH measured at 25°C, and pH measured at 12°C (n= 265). Results demonstrate that, relative to calculations utilizing the TA, DIC pair, agreement between measured and calculated parameters is improved when either TA or DIC is paired with pH measurements at either temperature. Calculations of CO2fugacity (fCO2) and aragonite saturation state (Ωar) using pH measurements made at 25°C or 12°C (paired with either TA or DIC) are statistically indistinguishable. Results also suggest that the temperature dependence of current CO2‐system dissociation constants need further refinement.

Published
2024
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20. A vision for FAIR ocean data products

Author

Tanhua, Toste, Lauvset, Siv K., Lange, Nico, Olsen, Are, Álvarez, Marta, Diggs, Stephen, Bittig, Henry C., Brown, Peter J., Carter, Brendan R., da Cunha, Leticia Cotrim, Feely, Richard A., Hoppema, Mario, Ishii, Masao, Jeansson, Emil, Kozyr, Alex, Murata, Akihiko, Pérez, Fiz F., Pfeil, Benjamin, Schirnick, Carsten, Steinfeldt, Reiner, Telszewski, Maciej, Tilbrook, Bronte, Velo, Anton, Wanninkhof, Rik, Burger, Eugene, O’Brien, Kevin, and Key, Robert M.

Published
2021
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21. Climatological distribution of ocean acidification indicators along the North American ocean margins.

Author

Jiang, Li-Qing, Boyer, Tim P., Paver, Christopher R., Yoo, Hyelim, Reagan, James R., Alin, Simone R., Barbero, Leticia, Carter, Brendan R., Feely, Richard A., and Wanninkhof, Rik

Subjects
OCEAN acidification, CALCITE, FISHERIES, OCEAN, HYDROGEN ions, CARBON dioxide
Abstract

Climatologies, which depict mean fields of oceanographic variables on a regular geographic grid, and atlases, which provide graphical depictions of specific areas, play pivotal roles in comprehending the societal vulnerabilities linked to ocean acidification (OA). This significance is particularly pronounced in coastal regions where most economic activities related to commercial and recreational fisheries as well as aquaculture industries occur. In this paper, we unveil a comprehensive data product featuring coastal climatologies and atlases for ten OA indicators, including fugacity of carbon dioxide, pH on the total scale, total hydrogen ion content, free hydrogen ion content, carbonate ion content, aragonite saturation state, calcite saturation state, Revelle Factor, total dissolved inorganic carbon content, and total alkalinity content. These indicators are provided on 1°×1° degree spatial grids at 14 standardized depth levels, ranging from the surface to a depth of 500 meters, along the North American ocean margins – defined as the region between the coastline and a distance of 200 nautical miles (∼370 km) offshore. The climatologies and atlases were developed using the World Ocean Atlas (WOA) gridding methods of the NOAA National Centers for Environmental Information (NCEI), based on the recently released Coastal Ocean Data Analysis Product in North America (CODAP-NA), along with the 2021 update to the Global Ocean Data Analysis Project version 2 (GLODAPv2.2021) data product. The relevant variables were adjusted to the index year of 2010. The data product is available in NetCDF (DOI: 10.25921/g8pb-zy76) at the NOAA Ocean Carbon and Acidification Data System: https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0270962.html. It is recommended to use the objectively analyzed mean fields (with '_an' suffix) for each variable. The atlases can be accessed at: https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/synthesis/nacoastal.html. [ABSTRACT FROM AUTHOR]

Published
2024
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22. A comprehensive assessment of electrochemical ocean alkalinity enhancement in seawater: kinetics, efficiency, and precipitation thresholds.

Author

Ringham, Mallory C., Hirtle, Nathan, Shaw, Cody, Xi Lu, Herndon, Julian, Carter, Brendan R., and Eisaman, Matthew D.

Subjects
SEAWATER, ALKALINITY, OCEAN, SEA water analysis, CARBON dioxide, SALINE water conversion, OCEAN circulation
Abstract

Ocean alkalinity enhancement (OAE) is a promising approach to marine carbon dioxide removal (mCDR) that leverages the large surface area and carbon storage capacity of the oceans to sequester atmospheric CO2 as dissolved bicarbonate (HCO3-). The SEA MATE (Safe Elevation of Alkalinity for the Mitigation of Acidification Through Electrochemistry) process uses electrochemistry to convert some of the salt (NaCl) in seawater or brine into aqueous acid (HCl), which is removed from the system, and base (NaOH), which is returned to the ocean with the remaining seawater. The resulting increase in seawater pH and alkalinity causes a shift in dissolved inorganic carbon (DIC) speciation toward carbonate and a decrease in the surface-ocean pCO2. The shift in the pCO2 results in enhanced CO2 uptake or reduced CO2 loss by the seawater due to gas exchange. The net result of this process is the increase of surface-ocean DIC, where it is durably stored as mostly bicarbonate and some carbonate. In this study, we systematically test the efficiency of CO2 uptake in seawater treated with NaOH at beaker (1L), aquaria (15L), and tank (6000L) scales to establish operational boundaries for safety and efficiency in scaling up to field experiments. Preliminary results show CO2 equilibration occurred on order of weeks to months, depending on circulation, air forcing, and air bubbling conditions within the test tanks. An increase of -0.7-0.9 mol DIC/ mol added alkalinity (in the form of NaOH) was observed through analysis of seawater bottle samples and pH sensor data, consistent with the value expected given the values of the carbonate system equilibrium calculations for the range of salinities and temperatures tested. Mineral precipitation occurred when the bulk seawater pH exceeded 10.0 and Ωaragonite exceeded 30.0. This precipitation was dominated by Mg(OH)2 over hours to 1 day before shifting to CaCO3, aragonite precipitation. These data, combined with models of the dilution and advection of alkaline plumes, will allow for estimation of the amount of carbon dioxide removal expected from OAE pilot studies. Future experiments should better approximate field conditions including sediment interactions, biological activity, ocean circulation, air-sea gas exchange rates, and mixing-zone dynamics. [ABSTRACT FROM AUTHOR]

Published
2024
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23. Uncertainty sources for measurable ocean carbonate chemistry variables.

Author

Carter, Brendan R., Sharp, Jonathan D., Dickson, Andrew G., Álvarez, Marta, Fong, Michael B., García‐Ibáñez, Maribel I., Woosley, Ryan J., Takeshita, Yuichiro, Barbero, Leticia, Byrne, Robert H., Cai, Wei‐Jun, Chierici, Melissa, Clegg, Simon L., Easley, Regina A., Fassbender, Andrea J., Fleger, Kalla L., Li, Xinyu, Martín‐Mayor, Macarena, Schockman, Katelyn M., and Wang, Zhaohui Aleck

Subjects
*OCEAN, *MARINE ecology, *CARBONATE minerals, *CARBON cycle, *CARBONATES, *BIOGEOCHEMISTRY
Abstract

The ocean carbonate system is critical to monitor because it plays a major role in regulating Earth's climate and marine ecosystems. It is monitored using a variety of measurements, and it is commonly understood that all components of seawater carbonate chemistry can be calculated when at least two carbonate system variables are measured. However, several recent studies have highlighted systematic discrepancies between calculated and directly measured carbonate chemistry variables and these discrepancies have large implications for efforts to measure and quantify the changing ocean carbon cycle. Given this, the Ocean Carbonate System Intercomparison Forum (OCSIF) was formed as a working group through the Ocean Carbon and Biogeochemistry program to coordinate and recommend research to quantify and/or reduce uncertainties and disagreements in measurable seawater carbonate system measurements and calculations, identify unknown or overlooked sources of these uncertainties, and provide recommendations for making progress on community efforts despite these uncertainties. With this paper we aim to (1) summarize recent progress toward quantifying and reducing carbonate system uncertainties; (2) advocate for research to further reduce and better quantify carbonate system measurement uncertainties; (3) present a small amount of new data, metadata, and analysis related to uncertainties in carbonate system measurements; and (4) restate and explain the rationales behind several OCSIF recommendations. We focus on open ocean carbonate chemistry, and caution that the considerations we discuss become further complicated in coastal, estuarine, and sedimentary environments. [ABSTRACT FROM AUTHOR]

Published
2024
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24. Introduction

Author

Boyer, Tim, primary, Bartow-Gillies, Ellen, additional, Abida, A., additional, Ades, Melanie, additional, Adler, Robert, additional, Adusumilli, Susheel, additional, Agyakwah, W., additional, Ahmasuk, Brandon, additional, Aldeco, Laura S., additional, Alexe, Mihai, additional, Alfaro, Eric J., additional, Allan, Richard P., additional, Allgood, Adam, additional, Alves, Lincoln. M., additional, Amador, Jorge A., additional, Anderson, John, additional, Andrade, B., additional, Anneville, Orlane, additional, Aono, Yasuyuki, additional, Arguez, Anthony, additional, Arosio, Carlo, additional, Atkinson, C., additional, Augustine, John A., additional, Avalos, Grinia, additional, Azorin-Molina, Cesar, additional, Backensto, Stacia A., additional, Bader, Stephan, additional, Baez, Julian, additional, Baiman, Rebecca, additional, Ballinger, Thomas J., additional, Banwell, Alison F., additional, Bardin, M. Yu, additional, Barichivich, Jonathan, additional, Barnes, John E., additional, Barreira, Sandra, additional, Beadling, Rebecca L., additional, Beck, Hylke E., additional, Becker, Emily J., additional, Bekele, E., additional, Bellido, Guillem Martín, additional, Bellouin, Nicolas, additional, Benedetti, Angela, additional, Benestad, Rasmus, additional, Berne, Christine, additional, Berner, Logan. T., additional, Bernhard, Germar H., additional, Bhatt, Uma S., additional, Bhuiyan, A. E., additional, Bigalke, Siiri, additional, Biló, Tiago, additional, Bissolli, Peter, additional, Bjerke Jarle, W., additional, Blagrave, Kevin, additional, Blake, Eric S., additional, Blenkinsop, Stephen, additional, Blunden, Jessica, additional, Bochníček, Oliver, additional, Bock, Olivier, additional, Bodenstein, Barbara, additional, Bodin, Xavier, additional, Bosilovich, Michael, additional, Boucher, Olivier, additional, Bozkurt, Deniz, additional, Brettschneider, Brian, additional, Bringas, Francis G., additional, Bringas, Francis, additional, Buechler, Dennis, additional, Buehler, Stefan A., additional, Bukunt, Brandon, additional, Calderón, Blanca, additional, Camargo, Suzana J., additional, Campbell, Jayaka, additional, Campos, Diego, additional, Carrea, Laura, additional, Carter, Brendan R., additional, Cetinić, Ivona, additional, Chambers, Don P., additional, Chan, Duo, additional, Chandler, Elise, additional, Chang, Kai-Lan, additional, Chen, Hua, additional, Chen, Lin, additional, Cheng, Lijing, additional, Cheng, Vincent Y. S., additional, Chomiak, Leah, additional, Christiansen, Hanne H., additional, Christy, John R., additional, Chung, Eui-Seok, additional, Ciasto, Laura M., additional, Clarke, Leonardo, additional, Clem, Kyle R., additional, Clingan, Scott, additional, Coelho, Caio A.S., additional, Cohen, Judah L., additional, Coldewey-Egbers, Melanie, additional, Colwell, Steve, additional, Cooper, Owen R., additional, Cornes, Richard C., additional, Correa, Kris, additional, Costa, Felipe, additional, Covey, Curt, additional, Coy, Lawrence, additional, Créatux, Jean-François, additional, Crhova, Lenka, additional, Crimmins, Theresa, additional, Cronin, Meghan F., additional, Cropper, Thomas, additional, Crotwell, Molly, additional, Culpepper, Joshua, additional, Cunha, Ana P., additional, Cusicanqui, Diego, additional, Datta, Rajashree T., additional, Davis, Sean M., additional, De Bock, Veerle, additional, de Jeu, Richard A. M., additional, De Laat, Jos, additional, Decharme, Bertrand, additional, Degenstein, Doug, additional, Delaloye, Reynald, additional, Demircan, Mesut, additional, Derksen, Chris, additional, Deus, Ricardo, additional, Dhurmea, K. R., additional, Diamond, Howard J., additional, Dirkse, S., additional, Divine, Dmitry, additional, Dokulil, Martin T., additional, Donat, Markus G., additional, Dong, Shenfu, additional, Dorigo, Wouter A., additional, Drost Jensen, Caroline, additional, Druckenmiller, Matthew L., additional, Drumond, Paula, additional, du Plessis, Marcel, additional, Dugan, Hilary A., additional, Dulamsuren, Dashkhuu, additional, Dunmire, Devon, additional, Dunn, Robert J. H., additional, Durre, Imke, additional, Dusek, Robert, additional, Dutton, Geoff, additional, Duveiller, Gregory, additional, Ekici, Mithat, additional, Elias Chereque, Alesksandra, additional, ElKharrim, M., additional, Epstein, Howard E., additional, Espinoza, Jhan-Carlo, additional, Estilow, Thomas W., additional, Estrella, Nicole, additional, Fauchereau, Nicolas, additional, Fausto, Robert S., additional, Feely, Richard A., additional, Fenimore, Chris, additional, Fereday, David, additional, Fettweis, Xavier, additional, Fioletov, vitali E., additional, Flemming, Johannes, additional, Fogarty, Chris, additional, Fogt, Ryan L., additional, Forbes, Bruce C., additional, Foster, Michael J., additional, Franz, Bryan A., additional, Freeman, Natalie M., additional, Fricker, Helen A., additional, Frith, Stacey M., additional, Froidevaux, Lucien, additional, Frost, Gerald V. (JJ), additional, Fuhrman, Steven, additional, Füllekrug, Martin, additional, Ganter, Catherine, additional, Gao, Meng, additional, Gardner, Alex S., additional, Garforth, Judith, additional, Garg, Jay, additional, Gerland, Sebastian, additional, Gibbes, Badin, additional, Gille, Sarah T., additional, Gilson, John, additional, Gleason, Karin, additional, Gobron, Nadine, additional, Goetz, Scott J., additional, Goldenberg, Stanley B., additional, Goni, Gustavo, additional, Goodman, Steven, additional, Goto, Atsushi, additional, Grooß, Jens-Uwe, additional, Gruber, Alexander, additional, Gu, Guojun, additional, Guard, Charles “Chip” P., additional, Hagos, S., additional, Hahn, Sebastian, additional, Haimberger, Leopold, additional, Hall, Bradley D., additional, Hamlington, Benjamin D., additional, Hanna, Edward, additional, Hanssen-Bauer, Inger, additional, Harnos, Daniel S., additional, Harris, Ian, additional, He, Qiong, additional, Heim, Richard R., additional, Hellström, Sverker, additional, Hemming, Deborah L., additional, Hendricks, Stefan, additional, Hicks, J., additional, Hidalgo, Hugo G., additional, Hirschi, Martin, additional, Ho, Shu-peng (Ben), additional, Hobbs, W., additional, Holmes, Robert M., additional, Holzworth, Robert, additional, Hrbáček, Filip, additional, Hu, Guojie, additional, Hu, Zeng-Zhen, additional, Huang, Boyin, additional, Huang, Hongjie, additional, Hurst, Dale F., additional, Ialongo, Iolanda, additional, Inness, Antje, additional, Isaksen, Ketil, additional, Ishii, Masayoshi, additional, Jadra, Gerardo, additional, Jevrejeva, Svetlana, additional, John, Viju O., additional, Johns, W., additional, Johnsen, Bjørn, additional, Johnson, Bryan, additional, Johnson, Gregory C., additional, Jones, Philip D., additional, Jones, Timothy, additional, Josey, Simon A., additional, Jumaux, G., additional, Junod, Robert, additional, Kääb, Andreas, additional, Kabidi, K., additional, Kaiser, Johannes W., additional, Kaler, Robb S.A., additional, Kaleschke, Lars, additional, Kaufmann, Viktor, additional, Kazemi, Amin Fazl, additional, Keller, Linda M., additional, Kellerer-Pirklbauer, Andreas, additional, Kendon, Mike, additional, Kennedy, John, additional, Kent, Elizabeth C., additional, Kerr, Kenneth, additional, Khan, Valentina, additional, Khiem, Mai Van, additional, Kidd, Richard, additional, Kim, Mi Ju, additional, Kim, Seong-Joong, additional, Kipling, Zak, additional, Klotzbach, Philip J., additional, Knaff, John A., additional, Koppa, Akash, additional, Korshunova, Natalia N., additional, Kraemer, Benjamin M., additional, Kramarova, Natalya A., additional, Kruger, A. C., additional, Kruger, Andries, additional, Kumar, Arun, additional, L’Heureux, Michelle, additional, La Fuente, Sofia, additional, Laas, Alo, additional, Labe, Zachary M., additional, Lader, Rick, additional, Lakatos, Mónika, additional, Lakkala, Kaisa, additional, Lam, Hoang Phuc, additional, Lan, Xin, additional, Landschützer, Peter, additional, Landsea, Chris W., additional, Lang, Timothy, additional, Lankhorst, Matthias, additional, Lantz, Kathleen O., additional, Lara, Mark J., additional, Lavado-Casimiro, Waldo, additional, Lavers, David A., additional, Lazzara, Matthew A., additional, Leblanc, Thierry, additional, Lee, Tsz-Cheung, additional, Leibensperger, Eric M., additional, Lennard, Chris, additional, Leuliette, Eric, additional, Leung, Kinson H. Y., additional, Lieser, Jan L., additional, Likso, Tanja, additional, Lin, I-I., additional, Lindsey, Jackie, additional, Liu, Yakun, additional, Locarnini, Ricardo, additional, Loeb, Norman G., additional, Loomis, Bryant D., additional, Lorrey, Andrew M., additional, Loyola, Diego, additional, Lu, Rui, additional, Lumpkin, Rick, additional, Luo, Jing-Jia, additional, Luojus, Kari, additional, Lyman, John M., additional, Maberly, Stephen C., additional, Macander, Matthew J., additional, MacFerrin, Michael, additional, MacGilchrist, Graeme A., additional, MacLennan, Michelle L., additional, Madelon, Remi, additional, Magee, Andrew D., additional, Magnin, Florence, additional, Mamen, Jostein, additional, Mankoff, Ken D., additional, Manney, Gloria L., additional, Marcinonienė, Izolda, additional, Marengo, Jose A., additional, Marjan, Mohammadi, additional, Martínez, Ana E., additional, Massom, Robert A., additional, Matsuzaki, Shin-Ichiro, additional, May, Linda, additional, Mayer, Michael, additional, Mazloff, Matthew R., additional, McAfee, Stephanie A., additional, McBride, C., additional, McCabe, Matthew F., additional, McClelland, James W., additional, McPhaden, Michael J., additional, Mcvicar, Tim R., additional, Mears, Carl A., additional, Meier, Walter N., additional, Mekonnen, A., additional, Menzel, Annette, additional, Merchant, Christopher J., additional, Merrifield, Mark A., additional, Meyer, Michael F., additional, Meyers, Tristan, additional, Mikolajczyk, David E., additional, Miller, John B., additional, Miralles, Diego G., additional, Misevicius, Noelia, additional, Mishonov, Alexey, additional, Mitchum, Gary T., additional, Moat, Ben I., additional, Moesinger, Leander, additional, Moise, Aurel, additional, Molina-Carpio, Jorge, additional, Monet, Ghislaine, additional, Montzka, Stephan A., additional, Moon, Twila A., additional, Moore, G. W. K., additional, Mora, Natali, additional, Morán, Johnny, additional, Morehen, Claire, additional, Morice, Colin, additional, Mostafa, A. E., additional, Mote, Thomas L., additional, Mrekaj, Ivan, additional, Mudryk, Lawrence, additional, Mühle, Jens, additional, Müller, Rolf, additional, Nance, David, additional, Nash, Eric R., additional, Nerem, R. Steven, additional, Newman, Paul A., additional, Nicolas, Julien P., additional, Nieto, Juan J., additional, Noetzli, Jeannette, additional, Noll, Ben, additional, Norton, Taylor, additional, Nyland, Kelsey E., additional, O’Keefe, John, additional, Ochwat, Naomi, additional, Oikawa, Yoshinori, additional, Okunaka, Yuka, additional, Osborn, Timothy J., additional, Overland, James E., additional, Park, Taejin, additional, Parrington, Mark, additional, Parrish, Julia K., additional, Pasch, Richard J., additional, Pascual Ramírez, Reynaldo, additional, Pellet, Cécile, additional, Pelto, Mauri S., additional, Perčec Tadić, Melita, additional, Perovich, Donald K., additional, Petersen, Guðrún Nína, additional, Petersen, Kyle, additional, Petropavlovskikh, Irina, additional, Petty, Alek, additional, Pezza, Alexandre B., additional, Pezzi, Luciano P., additional, Phillips, Coda, additional, Phoenix, Gareth K., additional, Pierson, Don, additional, Pinto, Izidine, additional, Pires, Vanda, additional, Pitts, Michael, additional, Po-Chedley, Stephen, additional, Pogliotti, Paolo, additional, Poinar, Kristin, additional, Polvani, Lorenzo, additional, Preimesberger, Wolfgang, additional, Price, Colin, additional, Pulkkanen, Merja, additional, Purkey, Sarah G., additional, Qiu, Bo, additional, Quisbert, Kenny, additional, Quispe, Willy R., additional, Rajeevan, M., additional, Ramos, Andrea M., additional, Randel, William J., additional, Rantanen, Mika, additional, Raphael, Marilyn N., additional, Reagan, James, additional, Recalde, Cristina, additional, Reid, Phillip, additional, Rémy, Samuel, additional, Reyes Kohler, Alejandra J., additional, Ricciardulli, Lucrezia, additional, Richardson, Andrew D., additional, Ricker, Robert, additional, Robinson, David A., additional, Robjhon, M., additional, Rocha, Willy, additional, Rodell, Matthew, additional, Rodriguez Guisado, Esteban, additional, Rodriguez-Fernandez, Nemesio, additional, Romanovsky, Vladimir E., additional, Ronchail, Josyane, additional, Rosencrans, Matthew, additional, Rosenlof, Karen H., additional, Rösner, Benjamin, additional, Rösner, Henrieke, additional, Rozanov, Alexei, additional, Rozkošný, Jozef, additional, Rubek, Frans, additional, Rusanovskaya, Olga O., additional, Rutishauser, This, additional, Sabeerali, C. T., additional, Salinas, Roberto, additional, Sánchez-Lugo, Ahira, additional, Santee, Michelle L., additional, Santini, Marcelo, additional, Sato, Katsunari, additional, Sawaengphokhai, Parnchai, additional, Sayouri, A., additional, Scambos, Theodore, additional, Schenzinger, Verena, additional, Schimanke, Semjon, additional, Schlegel, Robert W., additional, Schmid, Claudia, additional, Schmid, Martin, additional, Schneider, Udo, additional, Schreck, Carl J., additional, Schultz, Cristina, additional, _, _, additional, Segele, Z. T., additional, Sensoy, Serhat, additional, Serbin, Shawn P., additional, Serreze, Mark C., additional, Setiawan, Amsari Mudzakir, additional, Sezaki, Fumi, additional, Sharma, Sapna, additional, Sharp, Jonathan D., additional, Sheffield, Gay, additional, Shi, Jia-Rui, additional, Shi, Lei, additional, Shiklomanov, Alexander I., additional, Shiklomanov, Nikolay I., additional, Shimaraeva, Svetlana V., additional, Shukla, R., additional, Siegel, David A., additional, Silow, Eugene A., additional, Sima, F., additional, Simmons, Adrian J., additional, Smeed, David A., additional, Smith, Adam, additional, Smith, Matthew M., additional, Smith, Sharon L., additional, Soden, Brian J., additional, Sofieva, Viktoria, additional, Souza, Everaldo, additional, Sparks, Tim H., additional, Spence-Hemmings, Jacqueline, additional, Spencer, Robert G. M., additional, Spillane, Sandra, additional, Sreejith, O. P., additional, Srivastava, A. K., additional, Stackhouse, Paul W., additional, Stammerjohn, Sharon, additional, Stauffer, Ryan, additional, Steinbrecht, Wolfgang, additional, Steiner, Andrea K., additional, Stella, Jose L., additional, Stephenson, Tannecia S., additional, Stradiotti, Pietro, additional, Strahan, Susan E., additional, Streletskiy, Dmitry A., additional, Surendran, Divya E., additional, Suslova, Anya, additional, Svendby, Tove, additional, Sweet, William, additional, Takahashi, Kiyotoshi, additional, Takemura, Kazuto, additional, Tank, Suzanne E., additional, Taylor, Michael A., additional, Tedesco, Marco, additional, Thackeray, Stephen J., additional, Thiaw, W. M., additional, Thibert, Emmanuel, additional, Thoman, Richard L., additional, Thompson, Andrew F., additional, Thompson, Philip R., additional, Tian-Kunze, Xiangshan, additional, Timmermans, Mary-Louise, additional, Timofeyev, Maxim A., additional, Tobin, Skie, additional, Tømmervik, Hans, additional, Tourpali, Kleareti, additional, Trescilo, Lidia, additional, Tretiakov, Mikhail, additional, Trewin, Blair C., additional, Triñanes, Joaquin A., additional, Trotman, Adrian, additional, Truchelut, Ryan E., additional, Trusel, Luke D., additional, Tye, Mari R., additional, van der A, Ronald, additional, van der Schalie, Robin, additional, van der Schrier, Gerard, additional, Van Hemert, Caroline, additional, Van Meerbeeck, Cedric J., additional, van vliet, Arnold J.H., additional, Vazife, Ahad, additional, Verburg, Piet, additional, Vernier, Jean-Paul, additional, Vimont, Isaac J., additional, Virts, Katrina, additional, Vivero, Sebastián, additional, Volkov, Denis L., additional, Vömel, Holger, additional, Vose, Russell S., additional, Walker, Donald (Skip) A., additional, Walsh, John E., additional, Wang, Bin, additional, Wang, Hui, additional, Wang, Muyin, additional, Wang, Ray H. J., additional, Wang, Xinyue, additional, Wanninkhof, Rik, additional, Warnock, Taran, additional, Weber, Mark, additional, Webster, Melinda, additional, Wehrlé, Adrian, additional, Wen, Caihong, additional, Westberry, Toby K., additional, Widlansky, Matthew J., additional, Wiese, David N., additional, Wild, Jeannette D., additional, Wille, Jonathan D., additional, Willems, An, additional, Willett, Kate M., additional, Williams, Earle, additional, Willis, J., additional, Wong, Takmeng, additional, Wood, Kimberly M., additional, Woolway, Richard Iestyn, additional, Xie, Ping-Ping, additional, Yang, Daqing, additional, Yin, Xungang, additional, Yin, Ziqi, additional, Zeng, Zhenzhong, additional, Zhang, Huai-min, additional, Zhang, Li, additional, Zhang, Peiqun, additional, Zhao, Lin, additional, Zhou, Xinjia, additional, Zhu, Zhiwei, additional, Ziemke, Jerry R., additional, Ziese, Markus, additional, Zolkos, Scott, additional, Zotta, Ruxandra M., additional, Zou, Cheng-Zhi, additional, Allen, Jessicca, additional, Camper, Amy V., additional, Haley, Bridgette O., additional, Hammer, Gregory, additional, Love-Brotak, S. Elizabeth, additional, Ohlmann, Laura, additional, Noguchi, Lukas, additional, Riddle, Deborah B., additional, and Veasey, Sara W., additional

Published
2023
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25. Global Oceans

Author

Johnson, G. C, primary, Lumpkin, R, additional, Atkinson, C, additional, Biló, Tiago, additional, Boyer, Tim, additional, Bringas, Francis, additional, Carter, Brendan R., additional, Cetinić, Ivona, additional, Chambers, Don P., additional, Chan, Duo, additional, Cheng, Lijing, additional, Chomiak, Leah, additional, Cronin, Meghan F., additional, Dong, Shenfu, additional, Feely, Richard A., additional, Franz, Bryan A., additional, Gao, Meng, additional, Garg, Jay, additional, Gilson, John, additional, Goni, Gustavo, additional, Hamlington, Benjamin D., additional, Hobbs, W., additional, Hu, Zeng-Zhen, additional, Huang, Boyin, additional, Ishii, Masayoshi, additional, Jevrejeva, Svetlana, additional, Johns, W., additional, Landschützer, Peter, additional, Lankhorst, Matthias, additional, Leuliette, Eric, additional, Locarnini, Ricardo, additional, Lyman, John M., additional, McPhaden, Michael J., additional, Merrifield, Mark A., additional, Mishonov, Alexey, additional, Mitchum, Gary T., additional, Moat, Ben I., additional, Mrekaj, Ivan, additional, Nerem, R. Steven, additional, Purkey, Sarah G., additional, Qiu, Bo, additional, Reagan, James, additional, Sato, Katsunari, additional, Schmid, Claudia, additional, Sharp, Jonathan D., additional, Siegel, David A., additional, Smeed, David A., additional, Stackhouse, Paul W., additional, Sweet, William, additional, Thompson, Philip R., additional, Triñanes, Joaquin A., additional, Volkov, Denis L., additional, Wanninkhof, Rik, additional, Wen, Caihong, additional, Westberry, Toby K., additional, Widlansky, Matthew J., additional, Willis, J., additional, Xie, Ping-Ping, additional, Yin, Xungang, additional, Zhang, Huai-min, additional, Zhang, Li, additional, Allen, Jessicca, additional, Camper, Amy V., additional, Haley, Bridgette O., additional, Hammer, Gregory, additional, Love-Brotak, S. Elizabeth, additional, Ohlmann, Laura, additional, Noguchi, Lukas, additional, Riddle, Deborah B., additional, and Veasey, Sara W., additional

Published
2023
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26. Controls on surface water carbonate chemistry along North American ocean margins

Author

Cai, Wei-Jun, Xu, Yuan-Yuan, Feely, Richard A., Wanninkhof, Rik, Jönsson, Bror, Alin, Simone R., Barbero, Leticia, Cross, Jessica N., Azetsu-Scott, Kumiko, Fassbender, Andrea J., Carter, Brendan R., Jiang, Li-Qing, Pepin, Pierre, Chen, Baoshan, Hussain, Najid, Reimer, Janet J., Xue, Liang, Salisbury, Joseph E., Hernández-Ayón, José Martín, Langdon, Chris, Li, Qian, Sutton, Adrienne J., Chen, Chen-Tung A., and Gledhill, Dwight K.

Published
2020
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28. Global Surface Ocean Acidification Indicators From 1750 to 2100

Author

Jiang, Li‐Qing, primary, Dunne, John, additional, Carter, Brendan R., additional, Tjiputra, Jerry F., additional, Terhaar, Jens, additional, Sharp, Jonathan D., additional, Olsen, Are, additional, Alin, Simone, additional, Bakker, Dorothee C. E., additional, Feely, Richard A., additional, Gattuso, Jean‐Pierre, additional, Hogan, Patrick, additional, Ilyina, Tatiana, additional, Lange, Nico, additional, Lauvset, Siv K., additional, Lewis, Ernie R., additional, Lovato, Tomas, additional, Palmieri, Julien, additional, Santana‐Falcón, Yeray, additional, Schwinger, Jörg, additional, Séférian, Roland, additional, Strand, Gary, additional, Swart, Neil, additional, Tanhua, Toste, additional, Tsujino, Hiroyuki, additional, Wanninkhof, Rik, additional, Watanabe, Michio, additional, Yamamoto, Akitomo, additional, and Ziehn, Tilo, additional

Published
2023
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29. Decadal Trends in the Oceanic Storage of Anthropogenic Carbon from 1994 to 2014

Author

Müller, Jens Daniel, primary, Gruber, Nicolas, additional, Carter, Brendan R., additional, Feely, Richard A., additional, Ishii, Masao, additional, Lange, Nico, additional, Lauvset, Siv K, additional, Murata, Akihiko M., additional, Olsen, Are, additional, Pérez, Fiz F., additional, Sabine, Christopher L., additional, Tanhua, Toste, additional, Wanninkhof, Rik, additional, and Zhu, Donghe, additional

Published
2023
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31. Global surface ocean acidification indicators from 1750 to 2100

Author

Jiang, Li‐Qing, Dunne, John, Carter, Brendan R., Tjiputra, Jerry F., Terhaar, Jens, Sharp, Jonathan D., Olsen, Are, Alin, Simone, Bakker, Dorothee C. E., Feely, Richard A., Gattuso, Jean‐Pierre, Hogan, Patrick, Ilyina, Tatiana, Lange, Nico, Lauvset, Siv K., Lewis, Ernie R., Lovato, Tomas, Palmieri, Julien, Santana‐Falcón, Yeray, Schwinger, Jörg, Séférian, Roland, Strand, Gary, Swart, Neil, Tanhua, Toste, Tsujino, Hiroyuki, Wanninkhof, Rik, Watanabe, Michio, Yamamoto, Akitomo, and Ziehn, Tilo

Subjects
Shared Socioeconomic Pathways, global surface ocean, Global and Planetary Change, aragonite saturation state, pH, Earth System Models, ocean acidification indicators, General Earth and Planetary Sciences, Environmental Chemistry
Abstract

Accurately predicting future ocean acidification (OA) conditions is crucial for advancing OA research at regional and global scales, and guiding society's mitigation and adaptation efforts. This study presents a new model-data fusion product covering 10 global surface OA indicators based on 14 Earth System Models (ESMs) from the Coupled Model Intercomparison Project Phase 6 (CMIP6), along with three recent observational ocean carbon data products. The indicators include fugacity of carbon dioxide, pH on total scale, total hydrogen ion content, free hydrogen ion content, carbonate ion content, aragonite saturation state, calcite saturation state, Revelle Factor, total dissolved inorganic carbon content, and total alkalinity content. The evolution of these OA indicators is presented on a global surface ocean 1 degrees x 1 degrees grid as decadal averages every 10 years from preindustrial conditions (1750), through historical conditions (1850-2010), and to five future Shared Socioeconomic Pathways (2020-2100): SSP1-1.9, SSP1-2.6, SSP2-4.5, SSP3-7.0, and SSP5-8.5. These OA trajectories represent an improvement over previous OA data products with respect to data quantity, spatial and temporal coverage, diversity of the underlying data and model simulations, and the provided SSPs. The generated data product offers a state-of-the-art research and management tool for the 21st century under the combined stressors of global climate change and ocean acidification. The gridded data product is available in NetCDF at the National Oceanic and Atmospheric Administration (NOAA) National Centers for Environmental Information: https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0259391.html, and global maps of these indicators are available in jpeg at: https://www.ncei.noaa.gov/access/ocean-carbon-acidification-datasystem/synthesis/surface-oa-indicators.html. Plain Language Summary A new data product, based on the latest computer simulations and observational data, offers improved projections of ocean acidification (OA) conditions from the start of the Industrial Revolution in 1750 to the end of the 21st century. These projections will support OA research at regional and global scales, and provide essential information to guide OA mitigation and adaptation efforts for various sectors, including fisheries, aquaculture, tourism, marine resource decision-makers, and the general public.

Published
2023

32. GLODAPv2.2022: the latest version of the global interior ocean biogeochemical data product

Author

Lauvset, Siv K., primary, Lange, Nico, additional, Tanhua, Toste, additional, Bittig, Henry C., additional, Olsen, Are, additional, Kozyr, Alex, additional, Alin, Simone, additional, Álvarez, Marta, additional, Azetsu-Scott, Kumiko, additional, Barbero, Leticia, additional, Becker, Susan, additional, Brown, Peter J., additional, Carter, Brendan R., additional, da Cunha, Leticia Cotrim, additional, Feely, Richard A., additional, Hoppema, Mario, additional, Humphreys, Matthew P., additional, Ishii, Masao, additional, Jeansson, Emil, additional, Jiang, Li-Qing, additional, Jones, Steve D., additional, Lo Monaco, Claire, additional, Murata, Akihiko, additional, Müller, Jens Daniel, additional, Pérez, Fiz F., additional, Pfeil, Benjamin, additional, Schirnick, Carsten, additional, Steinfeldt, Reiner, additional, Suzuki, Toru, additional, Tilbrook, Bronte, additional, Ulfsbo, Adam, additional, Velo, Anton, additional, Woosley, Ryan J., additional, and Key, Robert M., additional

Published
2022
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34. Supplementary material to "GLODAPv2.2022: the latest version of the global interior ocean biogeochemical data product"

Author

Lauvset, Siv K., primary, Lange, Nico, additional, Tanhua, Toste, additional, Bittig, Henry C., additional, Olsen, Are, additional, Kozyr, Alex, additional, Alin, Simone R., additional, Álvarez, Marta, additional, Azetsu-Scott, Kumiko, additional, Barbero, Leticia, additional, Becker, Susan, additional, Brown, Peter J., additional, Carter, Brendan R., additional, da Cunha, Leticia Cotrim, additional, Feely, Richard A., additional, Hoppema, Mario, additional, Humphreys, Matthew P., additional, Ishii, Masao, additional, Jeansson, Emil, additional, Jiang, Li-Qing, additional, Jones, Steve D., additional, Lo Monaco, Claire, additional, Murata, Akihiko, additional, Müller, Jens Daniel, additional, Pérez, Fiz F., additional, Pfeil, Benjamin, additional, Schirnick, Carsten, additional, Steinfeldt, Reiner, additional, Suzuki, Toru, additional, Tilbrook, Bronte, additional, Ulfsbo, Adam, additional, Velo, Anton, additional, Woosley, Ryan J., additional, and Key, Robert M., additional

Published
2022
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38. A monthly surface pCO2 product for the California Current Large Marine Ecosystem

Author

Sharp, Jonathan D., Fassbender, Andrea J., Carter, Brendan R., Lavin, Paige D., and Sutton, Adrienne J.

Subjects
TheoryofComputation_MATHEMATICALLOGICANDFORMALLANGUAGES
Abstract

A common strategy for calculating the direction and rate of carbon dioxide gas (CO2) exchange between the ocean and atmosphere relies on knowledge of the partial pressure of CO2 in surface seawater (pCO2(sw)), a quantity that is frequently observed by autonomous sensors on ships and moored buoys, albeit with significant spatial and temporal gaps. Here we present a monthly gridded data product of pCO2(sw) at 0.25∘ latitude by 0.25∘ longitude resolution in the northeastern Pacific Ocean, centered on the California Current System (CCS) and spanning all months from January 1998 to December 2020. The data product (RFR-CCS; Sharp et al., 2022; https://doi.org/10.5281/zenodo.5523389) was created using observations from the most recent (2021) version of the Surface Ocean CO2 Atlas (Bakker et al., 2016). These observations were fit against a variety of collocated and contemporaneous satellite- and model-derived surface variables using a random forest regression (RFR) model. We validate RFR-CCS in multiple ways, including direct comparisons with observations from sensors on moored buoys, and find that the data product effectively captures seasonal pCO2(sw) cycles at nearshore sites. This result is notable because global gridded pCO2(sw) products do not capture local variability effectively in this region, suggesting that RFR-CCS is a better option than regional extractions from global products to represent pCO2(sw) in the CCS over the last 2 decades. Lessons learned from the construction of RFR-CCS provide insight into how global pCO2(sw) products could effectively characterize seasonal variability in nearshore coastal environments. We briefly review the physical and biological processes – acting across a variety of spatial and temporal scales – that are responsible for the latitudinal and nearshore-to-offshore pCO2(sw) gradients seen in the RFR-CCS reconstruction of pCO2(sw). RFR-CCS will be valuable for the validation of high-resolution models, the attribution of spatiotemporal carbonate system variability to physical and biological drivers, and the quantification of multiyear trends and interannual variability of ocean acidification.

Published
2022

40. Simulated Impact of Ocean Alkalinity Enhancement on Atmospheric CO2 Removal in the Bering Sea.

Author

Wang, Hongjie, Pilcher, Darren J., Kearney, Kelly A., Cross, Jessica N., Shugart, O. Melissa, Eisaman, Matthew D., and Carter, Brendan R.

Subjects
ATMOSPHERIC carbon dioxide, ALKALINITY, OCEAN, OCEANIC mixing, OCEAN acidification
Abstract

Ocean alkalinity enhancement (OAE) has the potential to mitigate ocean acidification (OA) and induce atmospheric carbon dioxide (CO2) removal (CDR). We evaluate the CDR and OA mitigation impacts of a sustained point‐source OAE of 1.67 × 1010 mol total alkalinity (TA) yr−1 (equivalent to 667,950 metric tons NaOH yr−1) in Unimak Pass, Alaska. We find the alkalinity elevation initially mitigates OA by decreasing pCO2 and increasing aragonite saturation state and pH. Then, enhanced air‐to‐sea CO2 exchange follows with an approximate e‐folding time scale of 5 weeks. Meaningful modeled OA mitigation with reductions of >10 μatm pCO2 (or just under 0.02 pH units) extends 100–100,000 km2 around the TA addition site. The CDR efficiency (i.e., the experimental seawater dissolved inorganic carbon (DIC) increase divided by the maximum DIC increase expected from the added TA) after the first 3 years is 0.96 ± 0.01, reflecting essentially complete air‐sea CO2 adjustment to the additional TA. This high efficiency is potentially a unique feature of the Bering Sea related to the shallow depths and mixed layer depths. The ratio of DIC increase to the TA added is also high (≥0.85) due to the high dissolved carbon content of seawater in the Bering Sea. The air‐sea gas exchange adjustment requires 3.6 months to become (>95%) complete, so the signal in dissolved carbon concentrations will likely be undetectable amid natural variability after dilution by ocean mixing. We therefore argue that modeling, on a range of scales, will need to play a major role in assessing the impacts of OAE interventions. Plain Language Summary: The Intergovernmental Panel on Climate Change suggests that carbon dioxide (CO2) removal (CDR) approaches will be required to stabilize the global temperature increase at 1.5–2°C. In this study, we simulated the climate mitigation impacts of adding alkalinity (equivalent to 667,950 metric ton NaOH yr−1) in Unimak Pass on the southern boundary of the Bering Sea. We found that adding alkalinity can accelerate the ocean CO2 uptake and storage and mitigate ocean acidification near the alkalinity addition. It takes about 3.6 months for the Ocean alkalinity enhancement impacted area to take up the extra CO2. The naturally cold and carbon rich water in the Bering Sea and the tendency of Bering Sea surface waters to linger near the ocean surface without mixing into the subsurface ocean both lead to high CDR efficiencies (>96%) from alkalinity additions in the Bering Sea. However, even with high efficiency, it would take >8,000 alkalinity additions of the kind we simulated to be operating by the year 2100 to meet the target to stabilize global temperatures within the targeted range. Key Points: We used regional ocean model to simulate single point‐source ocean alkalinity enhancement in the Bering SeaThe steady state carbon dioxide removal efficiency was near one in years 3+ of the simulationThe meaningful modeled ocean acidification mitigation is confined to the region near the alkalinity addition [ABSTRACT FROM AUTHOR]

Published
2023
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41. Best Practice Data Standards for Discrete Chemical Oceanographic Observations

Author

Jiang, Li-Qing, primary, Pierrot, Denis, additional, Wanninkhof, Rik, additional, Feely, Richard A., additional, Tilbrook, Bronte, additional, Alin, Simone, additional, Barbero, Leticia, additional, Byrne, Robert H., additional, Carter, Brendan R., additional, Dickson, Andrew G., additional, Gattuso, Jean-Pierre, additional, Greeley, Dana, additional, Hoppema, Mario, additional, Humphreys, Matthew P., additional, Karstensen, Johannes, additional, Lange, Nico, additional, Lauvset, Siv K., additional, Lewis, Ernie R., additional, Olsen, Are, additional, Pérez, Fiz F., additional, Sabine, Christopher, additional, Sharp, Jonathan D., additional, Tanhua, Toste, additional, Trull, Thomas W., additional, Velo, Anton, additional, Allegra, Andrew J., additional, Barker, Paul, additional, Burger, Eugene, additional, Cai, Wei-Jun, additional, Chen, Chen-Tung A., additional, Cross, Jessica, additional, Garcia, Hernan, additional, Hernandez-Ayon, Jose Martin, additional, Hu, Xinping, additional, Kozyr, Alex, additional, Langdon, Chris, additional, Lee, Kitack, additional, Salisbury, Joe, additional, Wang, Zhaohui Aleck, additional, and Xue, Liang, additional

Published
2022
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42. An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021

Author

Lauvset, Siv K., primary, Lange, Nico, additional, Tanhua, Toste, additional, Bittig, Henry C., additional, Olsen, Are, additional, Kozyr, Alex, additional, Álvarez, Marta, additional, Becker, Susan, additional, Brown, Peter J., additional, Carter, Brendan R., additional, Cotrim da Cunha, Leticia, additional, Feely, Richard A., additional, van Heuven, Steven, additional, Hoppema, Mario, additional, Ishii, Masao, additional, Jeansson, Emil, additional, Jutterström, Sara, additional, Jones, Steve D., additional, Karlsen, Maren K., additional, Lo Monaco, Claire, additional, Michaelis, Patrick, additional, Murata, Akihiko, additional, Pérez, Fiz F., additional, Pfeil, Benjamin, additional, Schirnick, Carsten, additional, Steinfeldt, Reiner, additional, Suzuki, Toru, additional, Tilbrook, Bronte, additional, Velo, Anton, additional, Wanninkhof, Rik, additional, Woosley, Ryan J., additional, and Key, Robert M., additional

Published
2021
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44. New and updated global empirical seawater property estimation routines

Author

Carter, Brendan R., primary, Bittig, Henry C., additional, Fassbender, Andrea J., additional, Sharp, Jonathan D., additional, Takeshita, Yuichiro, additional, Xu, Yuan‐Yuan, additional, Álvarez, Marta, additional, Wanninkhof, Rik, additional, Feely, Richard A., additional, and Barbero, Leticia, additional

Published
2021
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45. Supplementary material to "An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021"

Author

Lauvset, Siv K., primary, Lange, Nico, additional, Tanhua, Toste, additional, Bittig, Henry C., additional, Olsen, Are, additional, Kozyr, Alex, additional, Álvarez, Marta, additional, Becker, Susan, additional, Brown, Peter J., additional, Carter, Brendan R., additional, Cotrim da Cunha, Leticia, additional, Feely, Richard A., additional, van Heuven, Steven, additional, Hoppema, Mario, additional, Ishii, Masao, additional, Jeansson, Emil, additional, Jutterström, Sara, additional, Jones, Steve D., additional, Karlsen, Maren K., additional, Lo Monaco, Claire, additional, Michaelis, Patrick, additional, Murata, Akihiko, additional, Pérez, Fiz F., additional, Pfeil, Benjamin, additional, Schirnick, Carsten, additional, Steinfeldt, Reiner, additional, Suzuki, Toru, additional, Tilbrook, Bronte, additional, Velo, Anton, additional, Wanninkhof, Rik, additional, Woosley, Ryan J., additional, and Key, Robert M., additional

Published
2021
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46. Global Oceans

Author

Johnson, Gregory C., primary, Lumpkin, Rick, additional, Alin, Simone R., additional, Amaya, Dillon J., additional, Baringer, Molly O., additional, Boyer, Tim, additional, Brandt, Peter, additional, Carter, Brendan R., additional, Cetinić, Ivona, additional, Chambers, Don P., additional, Cheng, Lijing, additional, Collins, Andrew U., additional, Cosca, Cathy, additional, Domingues, Ricardo, additional, Dong, Shenfu, additional, Feely, Richard A., additional, Frajka-Williams, Eleanor, additional, Franz, Bryan A., additional, Gilson, John, additional, Goni, Gustavo, additional, Hamlington, Benjamin D., additional, Herrford, Josefine, additional, Hu, Zeng-Zhen, additional, Huang, Boyin, additional, Ishii, Masayoshi, additional, Jevrejeva, Svetlana, additional, Kennedy, John J., additional, Kersalé, Marion, additional, Killick, Rachel E., additional, Landschützer, Peter, additional, Lankhorst, Matthias, additional, Leuliette, Eric, additional, Locarnini, Ricardo, additional, Lyman, John M., additional, Marra, John J., additional, Meinen, Christopher S., additional, Merrifield, Mark A., additional, Mitchum, Gary T., additional, Moat, Ben I., additional, Nerem, R. Steven, additional, Perez, Renellys C., additional, Purkey, Sarah G., additional, Reagan, James, additional, Sanchez-Franks, Alejandra, additional, Scannell, Hillary A., additional, Schmid, Claudia, additional, Scott, Joel P., additional, Siegel, David A., additional, Smeed, David A., additional, Stackhouse, Paul W., additional, Sweet, William, additional, Thompson, Philip R., additional, Triñanes, Joaquin A., additional, Volkov, Denis L., additional, Wanninkhof, Rik, additional, Weller, Robert A., additional, Wen, Caihong, additional, Westberry, Toby K., additional, Widlansky, Matthew J., additional, Wilber, Anne C., additional, Yu, Lisan, additional, and Zhang, Huai-Min, additional

Published
2021
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47. GOBAI-O2: temporally and spatially resolved fields of ocean interior dissolved oxygen over nearly two decades.

Author

Sharp, Jonathan D., Fassbender, Andrea J., Carter, Brendan R., Johnson, Gregory C., Schultz, Cristina, and Dunne, John P.

Subjects
OXYGEN detectors, OCEAN, DISSOLVED oxygen in water, OXYGEN, ARTIFICIAL intelligence, RANDOM forest algorithms, MAXIMUM power point trackers, MACHINE learning
Abstract

Over a decade ago, oceanographers began installing oxygen sensors on Argo floats to be deployed throughout the world ocean with the express objective of better constraining trends and variability in the ocean's inventory of oxygen. Until now, measurements from these Argo-mounted oxygen sensors have been mainly used for localized process studies on air-sea oxygen exchange, biological pump efficiency, upper ocean primary production, and oxygen minimum zone dynamics. Here we present a four-dimensional gridded product of ocean interior oxygen, derived via machine learning algorithms trained on dissolved oxygen observations from Argo-mounted sensors and discrete measurements from ship-based surveys, and applied to temperature and salinity fields constructed from the global Argo array. The data product is called GOBAI-O2 for Gridded Ocean Biogeochemistry from Artificial Intelligence - Oxygen (Sharp et al., 2022; https://doi.org/10.25921/z72m-yz67; last access: 30 Aug. 2022); it covers 86% of the global ocean area on a 1° latitude by 1° longitude grid, spans the years 2004-2021 with monthly resolution, and extends from the ocean surface to two kilometers in depth on 58 levels. Two machine learning algorithms -- random forest regressions and feed-forward neural networks -- are used in the development of GOBAI-O2, and the performance of those algorithms is assessed using real observations and Earth system model output. GOBAI-O2 is evaluated through comparisons to the World Ocean Atlas and to direct observations from large-scale hydrographic research cruises. Finally, potential uses for GOBAI-O2 are demonstrated by presenting average oxygen fields on isobaric and isopycnal surfaces, average oxygen fields across vertical-meridional sections, climatological cycles of oxygen averaged over different pressure intervals, and a globally integrated oxygen inventory time series. [ABSTRACT FROM AUTHOR]

Published
2022
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48. Coastal Ocean Data Analysis Product in North America (CODAP-NA) – an internally consistent data product for discrete inorganic carbon, oxygen, and nutrients on the North American ocean margins

Author

Jiang, Li-Qing, primary, Feely, Richard A., additional, Wanninkhof, Rik, additional, Greeley, Dana, additional, Barbero, Leticia, additional, Alin, Simone, additional, Carter, Brendan R., additional, Pierrot, Denis, additional, Featherstone, Charles, additional, Hooper, James, additional, Melrose, Chris, additional, Monacci, Natalie, additional, Sharp, Jonathan D., additional, Shellito, Shawn, additional, Xu, Yuan-Yuan, additional, Kozyr, Alex, additional, Byrne, Robert H., additional, Cai, Wei-Jun, additional, Cross, Jessica, additional, Johnson, Gregory C., additional, Hales, Burke, additional, Langdon, Chris, additional, Mathis, Jeremy, additional, Salisbury, Joe, additional, and Townsend, David W., additional

Published
2021
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50. A monthly surface pCO2 product for the California Current Large Marine Ecosystem.

Author

Sharp, Jonathan D., Fassbender, Andrea J., Carter, Brendan R., Lavin, Paige D., and Sutton, Adrienne J.

Subjects
OCEAN currents, MARINE ecology, CARBON dioxide, OCEAN acidification, PARTIAL pressure, LATITUDE
Abstract

A common strategy for calculating the direction and rate of carbon dioxide gas (CO 2) exchange between the ocean and atmosphere relies on knowledge of the partial pressure of CO 2 in surface seawater (p CO 2(sw)), a quantity that is frequently observed by autonomous sensors on ships and moored buoys, albeit with significant spatial and temporal gaps. Here we present a monthly gridded data product of p CO 2(sw) at 0.25 ∘ latitude by 0.25 ∘ longitude resolution in the northeastern Pacific Ocean, centered on the California Current System (CCS) and spanning all months from January 1998 to December 2020. The data product (RFR-CCS; Sharp et al., 2022; 10.5281/zenodo.5523389) was created using observations from the most recent (2021) version of the Surface Ocean CO 2 Atlas (Bakker et al., 2016). These observations were fit against a variety of collocated and contemporaneous satellite- and model-derived surface variables using a random forest regression (RFR) model. We validate RFR-CCS in multiple ways, including direct comparisons with observations from sensors on moored buoys, and find that the data product effectively captures seasonal p CO 2(sw) cycles at nearshore sites. This result is notable because global gridded p CO 2(sw) products do not capture local variability effectively in this region, suggesting that RFR-CCS is a better option than regional extractions from global products to represent p CO 2(sw) in the CCS over the last 2 decades. Lessons learned from the construction of RFR-CCS provide insight into how global p CO 2(sw) products could effectively characterize seasonal variability in nearshore coastal environments. We briefly review the physical and biological processes – acting across a variety of spatial and temporal scales – that are responsible for the latitudinal and nearshore-to-offshore p CO 2(sw) gradients seen in the RFR-CCS reconstruction of p CO 2(sw). RFR-CCS will be valuable for the validation of high-resolution models, the attribution of spatiotemporal carbonate system variability to physical and biological drivers, and the quantification of multiyear trends and interannual variability of ocean acidification. [ABSTRACT FROM AUTHOR]

Published
2022
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