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Lauvset, Siv K. [Author]; Lange, Nico [Author]; Tanhua, Toste [Author]; Bittig, Henry C. [Author]; Olsen, Are [Author]; Kozyr, Alex [Author]; Álvarez, Marta [Author]; Becker, Susan [Author]; Brown, Peter J. [Author]; Carter, Brendan R. [Author]; Cotrim da Cunha, Leticia [Author]; Feely, Richard A. [Author]; van Heuven, Steven [Author]; Hoppema, Mario [Author]; Ishii, Masao [Author]; Jeansson, Emil [Author]; Jutterström, Sara [Author]; Jones, Steve D. [Author]; Karlsen, Maren K. [Author]; Lo Monaco, Claire [Author]; Michaelis, Patrick [Author]; Murata, Akihiko [Author]; Pérez, Fiz F. [Author]; Pfeil, Benjamin [Author]; [...]

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

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  • Media type: E-Article
  • Title: An updated version of the global interior ocean biogeochemical data product, GLODAPv2.2021
  • Contributor: Lauvset, Siv K. [Author]; Lange, Nico [Author]; Tanhua, Toste [Author]; Bittig, Henry C. [Author]; Olsen, Are [Author]; Kozyr, Alex [Author]; Álvarez, Marta [Author]; Becker, Susan [Author]; Brown, Peter J. [Author]; Carter, Brendan R. [Author]; Cotrim da Cunha, Leticia [Author]; Feely, Richard A. [Author]; van Heuven, Steven [Author]; Hoppema, Mario [Author]; Ishii, Masao [Author]; Jeansson, Emil [Author]; Jutterström, Sara [Author]; Jones, Steve D. [Author]; Karlsen, Maren K. [Author]; Lo Monaco, Claire [Author]; Michaelis, Patrick [Author]; Murata, Akihiko [Author]; Pérez, Fiz F. [Author]; Pfeil, Benjamin [Author]; [...]
  • imprint: Copernicus Publications (EGU), 2021-12-03
  • Language: English
  • DOI: https://doi.org/10.5194/essd-13-5565-2021
  • Origination:
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  • Description: 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, 1ĝ€¯% in oxygen, ...
  • Access State: Open Access