An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021
25 pages, 10 figures, 7 tables.-- This work is distributed under the Creative Commons Attribution 4.0 License The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface-to-bottom ocean biogeochemical bottle data, with an emphasis on seawater inorg...
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25 pages, 10 figures, 7 tables.-- This work is distributed under the Creative Commons Attribution 4.0 License The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface-to-bottom ocean biogeochemical bottle data, with an emphasis on seawater inorganic carbon chemistry and related variables determined through chemical analysis of seawater samples. GLODAPv2.2021 is an update of the previous version, GLODAPv2.2020 (Olsen et al., 2020). The major changes are as follows: data from 43 new cruises were added, data coverage was extended until 2020, all data with missing temperatures were removed, and a digital object identifier (DOI) was included for each cruise in the product files. In addition, a number of minor corrections to GLODAPv2.2020 data were performed. GLODAPv2.2021 includes measurements from more than 1.3 million water samples from the global oceans collected on 989 cruises. The data for the 12 GLODAP core variables (salinity, oxygen, nitrate, silicate, phosphate, dissolved inorganic carbon, total alkalinity, pH, CFC-11, CFC-12, CFC-113, and CCl4) have undergone extensive quality control with a focus on systematic evaluation of bias. The data are available in two formats: (i) as submitted by the data originator but updated to World Ocean Circulation Experiment (WOCE) exchange format and (ii) as a merged data product with adjustments applied to minimize bias. For this annual update, adjustments for the 43 new cruises were derived by comparing those data with the data from the 946 quality controlled cruises in the GLODAPv2.2020 data product using crossover analysis. Comparisons to estimates of nutrients and ocean CO2 chemistry based on empirical algorithms provided additional context for adjustment decisions in this version. The adjustments are intended to remove potential biases from errors related to measurement, calibration, and data handling practices without removing known or likely time trends or variations in the variables evaluated. The compiled and adjusted data product is believed to be consistent with to better than 0.005 in salinity, 1% in oxygen, 2% in nitrate, 2% in silicate, 2% in phosphate, 4 μmolkg-1 in dissolved inorganic carbon, 4 μmolkg-1 in total alkalinity, 0.01–0.02 in pH (depending on region), and 5% in the halogenated transient tracers. The other variables included in the compilation, such as isotopic tracers and discrete CO2 fugacity (fCO2), were not subjected to bias comparison or adjustments. The original data, their documentation, and DOI codes are available at the Ocean Carbon Data System of NOAA NCEI (https://www.ncei.noaa.gov/access/ocean-carbon-data-system/oceans/GLODAPv2_2021/, last access: 7 July 2021). This site also provides access to the merged data product, which is provided as a single global file and as four regional ones – the Arctic, Atlantic, Indian, and Pacific oceans – under https://doi.org/10.25921/ttgq-n825 (Lauvset et al., 2021). These bias-adjusted product files also include significant ancillary and approximated data and can be accessed via https://www.glodap.info (last access: 29 June 2021). These were obtained by interpolation of, or calculation from, measured data. This living data update documents the GLODAPv2.2021 methods and provides a broad overview of the secondary quality control procedures and results This research has been supported by EU Horizon 2020 through the EuroSea action (grant no. 862626), internal strategic funding from NORCE Climate, Prociencia/UERJ (grant 2019–2021), IEO RADIALES and RADPROF projects, the UK Climate Linked Atlantic Sector Science (CLASS) NERC National Capability Long-term Single Centre Science Programme(grant no. NE/R015953/1), the BOCATS2 (PID2019-104279GBC21) project funded by MCIN/AEI/10.13039/501100011033 and contributing toWATER:iOS CSIC PTI, the NOAA Global Observations and Monitoring Division (fund reference 100007298), the Office of Oceanic and Atmospheric Research of NOAA Global Observations and Monitoring Division (fund reference 100007298), the Office of Oceanic and Atmospheric Research of NOAA, the BONUS INTEGRAL project (grant no. 03F0773A), the Australian Antarctic Program Partnership and the Integrated Marine Observing System, EU Horizon 2020 action SO-CHIC (grant no. 821001), and the Initiative and Networking Fund of the Helmholtz Association through the project “Digital Earth” (grant no. ZT-0025) Peer reviewed |
author2 |
European Commission Ministerio de Ciencia y Tecnología (España) |
format |
Article in Journal/Newspaper |
author |
Lauvset, Siv K. Lange, Nico Tanhua, T. Bittig, Henry C. Olsen, Are Kozyr, Alex Álvarez, Marta Becker, Susan Brown, P. Carter, Brendan R. Cotrim da Cunha, Leticia Feely, Richard A. Van Heuven, S. Hoppema, M. Ishii, Masao Jeansson, Emil Jutterström, S. Jones, Steve D. Karlsen, Maren K. Lo Monaco, Claire Michaelis, Patrick Murata, Akihiko Pérez, Fiz F. Pfeil, B. Schirnick, C. Steinfeldt, R. Tilbrook, Bronte Velo, A. Wanninkhof, Rik Woosley, Ryan J. Key, Robert M. |
spellingShingle |
Lauvset, Siv K. Lange, Nico Tanhua, T. Bittig, Henry C. Olsen, Are Kozyr, Alex Álvarez, Marta Becker, Susan Brown, P. Carter, Brendan R. Cotrim da Cunha, Leticia Feely, Richard A. Van Heuven, S. Hoppema, M. Ishii, Masao Jeansson, Emil Jutterström, S. Jones, Steve D. Karlsen, Maren K. Lo Monaco, Claire Michaelis, Patrick Murata, Akihiko Pérez, Fiz F. Pfeil, B. Schirnick, C. Steinfeldt, R. Tilbrook, Bronte Velo, A. Wanninkhof, Rik Woosley, Ryan J. Key, Robert M. An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021 |
author_facet |
Lauvset, Siv K. Lange, Nico Tanhua, T. Bittig, Henry C. Olsen, Are Kozyr, Alex Álvarez, Marta Becker, Susan Brown, P. Carter, Brendan R. Cotrim da Cunha, Leticia Feely, Richard A. Van Heuven, S. Hoppema, M. Ishii, Masao Jeansson, Emil Jutterström, S. Jones, Steve D. Karlsen, Maren K. Lo Monaco, Claire Michaelis, Patrick Murata, Akihiko Pérez, Fiz F. Pfeil, B. Schirnick, C. Steinfeldt, R. Tilbrook, Bronte Velo, A. Wanninkhof, Rik Woosley, Ryan J. Key, Robert M. |
author_sort |
Lauvset, Siv K. |
title |
An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021 |
title_short |
An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021 |
title_full |
An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021 |
title_fullStr |
An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021 |
title_full_unstemmed |
An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021 |
title_sort |
updated version of the global interior ocean biogeochemical data product, glodapv2.2021 |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
http://hdl.handle.net/10261/256525 https://doi.org/10.5194/essd-13-5565-2021 |
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Antarctic Arctic Indian Pacific |
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Antarctic Arctic Indian Pacific |
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Antarc* Antarctic Arctic Australian Antarctic Program |
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Antarc* Antarctic Arctic Australian Antarctic Program |
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ftcsic:oai:digital.csic.es:10261/256525 2023-05-15T13:54:55+02:00 An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021 Lauvset, Siv K. Lange, Nico Tanhua, T. Bittig, Henry C. Olsen, Are Kozyr, Alex Álvarez, Marta Becker, Susan Brown, P. Carter, Brendan R. Cotrim da Cunha, Leticia Feely, Richard A. Van Heuven, S. Hoppema, M. Ishii, Masao Jeansson, Emil Jutterström, S. Jones, Steve D. Karlsen, Maren K. Lo Monaco, Claire Michaelis, Patrick Murata, Akihiko Pérez, Fiz F. Pfeil, B. Schirnick, C. Steinfeldt, R. Tilbrook, Bronte Velo, A. Wanninkhof, Rik Woosley, Ryan J. Key, Robert M. European Commission Ministerio de Ciencia y Tecnología (España) 2021 http://hdl.handle.net/10261/256525 https://doi.org/10.5194/essd-13-5565-2021 en eng Copernicus Publications #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/H2020/862626 info:eu-repo/grantAgreement/EC/H2020/821001 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104279GBC21/BOCATS Publisher's version https://doi.org/10.5194/essd-13-5565-2021 Sí Earth System Science Data 13: 5565–5589 (2021) 1866-3508 http://hdl.handle.net/10261/256525 doi:10.5194/essd-13-5565-2021 1866-3516 open artículo 2021 ftcsic https://doi.org/10.5194/essd-13-5565-2021 2021-12-22T00:38:16Z 25 pages, 10 figures, 7 tables.-- This work is distributed under the Creative Commons Attribution 4.0 License The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface-to-bottom ocean biogeochemical bottle data, with an emphasis on seawater inorganic carbon chemistry and related variables determined through chemical analysis of seawater samples. GLODAPv2.2021 is an update of the previous version, GLODAPv2.2020 (Olsen et al., 2020). The major changes are as follows: data from 43 new cruises were added, data coverage was extended until 2020, all data with missing temperatures were removed, and a digital object identifier (DOI) was included for each cruise in the product files. In addition, a number of minor corrections to GLODAPv2.2020 data were performed. GLODAPv2.2021 includes measurements from more than 1.3 million water samples from the global oceans collected on 989 cruises. The data for the 12 GLODAP core variables (salinity, oxygen, nitrate, silicate, phosphate, dissolved inorganic carbon, total alkalinity, pH, CFC-11, CFC-12, CFC-113, and CCl4) have undergone extensive quality control with a focus on systematic evaluation of bias. The data are available in two formats: (i) as submitted by the data originator but updated to World Ocean Circulation Experiment (WOCE) exchange format and (ii) as a merged data product with adjustments applied to minimize bias. For this annual update, adjustments for the 43 new cruises were derived by comparing those data with the data from the 946 quality controlled cruises in the GLODAPv2.2020 data product using crossover analysis. Comparisons to estimates of nutrients and ocean CO2 chemistry based on empirical algorithms provided additional context for adjustment decisions in this version. The adjustments are intended to remove potential biases from errors related to measurement, calibration, and data handling practices without removing known or likely time trends or variations in the variables evaluated. The compiled and adjusted data product is believed to be consistent with to better than 0.005 in salinity, 1% in oxygen, 2% in nitrate, 2% in silicate, 2% in phosphate, 4 μmolkg-1 in dissolved inorganic carbon, 4 μmolkg-1 in total alkalinity, 0.01–0.02 in pH (depending on region), and 5% in the halogenated transient tracers. The other variables included in the compilation, such as isotopic tracers and discrete CO2 fugacity (fCO2), were not subjected to bias comparison or adjustments. The original data, their documentation, and DOI codes are available at the Ocean Carbon Data System of NOAA NCEI (https://www.ncei.noaa.gov/access/ocean-carbon-data-system/oceans/GLODAPv2_2021/, last access: 7 July 2021). This site also provides access to the merged data product, which is provided as a single global file and as four regional ones – the Arctic, Atlantic, Indian, and Pacific oceans – under https://doi.org/10.25921/ttgq-n825 (Lauvset et al., 2021). These bias-adjusted product files also include significant ancillary and approximated data and can be accessed via https://www.glodap.info (last access: 29 June 2021). These were obtained by interpolation of, or calculation from, measured data. This living data update documents the GLODAPv2.2021 methods and provides a broad overview of the secondary quality control procedures and results This research has been supported by EU Horizon 2020 through the EuroSea action (grant no. 862626), internal strategic funding from NORCE Climate, Prociencia/UERJ (grant 2019–2021), IEO RADIALES and RADPROF projects, the UK Climate Linked Atlantic Sector Science (CLASS) NERC National Capability Long-term Single Centre Science Programme(grant no. NE/R015953/1), the BOCATS2 (PID2019-104279GBC21) project funded by MCIN/AEI/10.13039/501100011033 and contributing toWATER:iOS CSIC PTI, the NOAA Global Observations and Monitoring Division (fund reference 100007298), the Office of Oceanic and Atmospheric Research of NOAA Global Observations and Monitoring Division (fund reference 100007298), the Office of Oceanic and Atmospheric Research of NOAA, the BONUS INTEGRAL project (grant no. 03F0773A), the Australian Antarctic Program Partnership and the Integrated Marine Observing System, EU Horizon 2020 action SO-CHIC (grant no. 821001), and the Initiative and Networking Fund of the Helmholtz Association through the project “Digital Earth” (grant no. ZT-0025) Peer reviewed Article in Journal/Newspaper Antarc* Antarctic Arctic Australian Antarctic Program Digital.CSIC (Spanish National Research Council) Antarctic Arctic Indian Pacific Earth System Science Data 13 12 5565 5589 |