OceanSODA-ETHZ: A global gridded dataset of the surface ocean carbonate system for seasonal to decadal studies of ocean acidification (v2023) (NCEI Accession 0220059)
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title: OceanSODA-ETHZ: A global gridded dataset of the surface ocean carbonate system for seasonal to decadal studies of ocean acidification (v2023) (NCEI Accession 0220059)
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abstract: This dataset contains a global gridded dataset of the surface ocean carbonate system for seasonal to decadal studies of ocean acidification (v2023). The full marine carbonate system is calculated from machine learning estimates of Total Alkalinity (TA) and the fugacity of carbon dioxide (fCO2). The surface-ocean fCO2 presented here is the ensemble mean of 16 two-step clustering-regression machine learning estimates. The ensemble is a combination of eight clustering instances and two regression methods. For the clustering, we use K-means clustering (21 clusters) repeated with different initiations, resulting in slightly different clusters. Two machine learning regression methods are applied to each of these clustering instances. These machine learning methods are feed-forward neural-network (FFNN), and gradient boosted machine using decision trees (GBDT). The average of the ensemble members is used as the final estimate. Further, the standard deviation of the ensemble members is an analog of the uncertainty. The same two-step clustering-regression approach is used to estimate TA. The final estimate is the mean of 16 ensemble members. Eight of the ensemble members estimate standard TA while the other half estimate salinity normalized TA (S0 ≈ 34.0). Each ensemble member has 12 clusters. Support vector regression (SVR) is used as the regression method. Again, the standard deviation of the ensemble members is an analog of the uncertainty. Total alkalinity and pCO2 are then used to solve for the remaining parameters of the marine carbonate system using the PyCO2SYS software. The temperature and salinity products used in this calculation are provided in the file. Phosphate and silicate from the interpolated World Ocean Atlas (2018) product were used. We use the following total scale for pH. The product extends from the start of 1982 to the end of 2022.
purpose: This dataset is available to the public for a wide variety of uses including scientific research and analysis.
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title: Mogen, Samuel C.; Lovenduski, Nicole S.; Dallmann, Allysa R.; Gregor, Luke; Sutton, Adrienne J.; Bograd, Steven J.; Quiros, Nathali Cordero; Di Lorenzo, Emanuele; Hazen, Elliott L.; Jacox, Michael G.; Buil, Mercedes Pozo; Yeager, Stephen. Ocean Biogeochemical Signatures of the North Pacific Blob; Geophysical Research Letters. PMEL Contribution no. 5316. 2022. https://doi.org/10.1029/2021gl096938
date: (CI_Date)
date: 2022
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code: noaa:40479
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title: International DOI Foundation (IDF)
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code: https://doi.org/10.1029/2021gl096938
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linkage: https://doi.org/10.1029/2021gl096938
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individualName: Mogen, Samuel C.
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individualName: Lovenduski, Nicole S.
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individualName: Dallmann, Allysa R.
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individualName: Gregor, Luke
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individualName: Sutton, Adrienne J.
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individualName: Di Lorenzo, Emanuele
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individualName: Hazen, Elliott L.
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individualName: Jacox, Michael G.
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citedResponsibleParty: (CI_ResponsibleParty)
individualName: Buil, Mercedes Pozo
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individualName: Yeager, Stephen
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Anchor: https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1670 US DOC; NOAA; OAR; OSS; NOAA Central Library
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address: (CI_Address)
electronicMailAddress: library.reference@noaa.gov
onlineResource: (CI_OnlineResource)
linkage: https://library.noaa.gov/
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name: NOAA Central Library website
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role: (CI_RoleCode) publisher
series: (CI_Series)
name: PMEL Contribution no. 5316
associationType: (DS_AssociationTypeCode) crossReference
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title: OceanSODA-ETHZ: A global gridded data set of the surface ocean carbonate system for seasonal to decadal studies of ocean acidification
date: (CI_Date)
date: 2022
dateType: (CI_DateTypeCode) publication
citedResponsibleParty: (CI_ResponsibleParty)
positionName: (unknown)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/ndp_103/ndp103.html
protocol: HTTPS
name: https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/ndp_103/ndp103.html
description: related resource
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Anchor: https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1730 US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
role: (CI_RoleCode) publisher
presentationForm: (CI_PresentationFormCode) documentDigital
associationType: (DS_AssociationTypeCode) crossReference
initiativeType: (DS_InitiativeTypeCode) project
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title: NOAA National Centers for Environmental Information (2022). Ocean Carbon and Acidification Data System (OCADS). NOAA National Centers for Environmental Information. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
date: (CI_Date)
date: 2022-04
dateType: (CI_DateTypeCode) publication
citedResponsibleParty: (CI_ResponsibleParty)
positionName: (unknown)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
protocol: HTTPS
name: https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
description: OCADS website
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citedResponsibleParty: (CI_ResponsibleParty)
organisationName:
Anchor: https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1730 NOAA National Centers for Environmental Information
role: (CI_RoleCode) author
citedResponsibleParty: (CI_ResponsibleParty)
organisationName:
Anchor: https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1730 US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
role: (CI_RoleCode) publisher
presentationForm: (CI_PresentationFormCode) documentDigital
otherCitationDetails: [accessed 2024-02-08]
associationType: (DS_AssociationTypeCode) crossReference
initiativeType: (DS_InitiativeTypeCode) program
language:
LanguageCode: eng; USA
characterSet: (MD_CharacterSetCode) utf8
topicCategory: (MD_TopicCategoryCode) environment
topicCategory: (MD_TopicCategoryCode) oceans
extent: (EX_Extent)
geographicElement: (EX_GeographicBoundingBox)
westBoundLongitude: -179.5
eastBoundLongitude: 179.5
southBoundLatitude: -89.5
northBoundLatitude: 89.5
temporalElement: (EX_TemporalExtent)
extent:
TimePeriod:
beginPosition: 1982-01-01
endPosition: 2022-12-31
supplementalInformation: In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.
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distributionInfo: (MD_Distribution)
distributor: (MD_Distributor)
distributorContact: (CI_ResponsibleParty)
organisationName:
Anchor: https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1730 NOAA National Centers for Environmental Information
contactInfo: (CI_Contact)
phone: (CI_Telephone)
voice: +1-301-713-3277
address: (CI_Address)
electronicMailAddress: NCEI.Info@noaa.gov
role: (CI_RoleCode) pointOfContact
distributionOrderProcess: (MD_StandardOrderProcess)
fees: In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
orderingInstructions: Contact NCEI for other distribution options and instructions.
distributorFormat: (MD_Format)
name: Originator data format
version: (unknown)
distributorTransferOptions: (MD_DigitalTransferOptions)
transferSize:
Real: 1365.812
onLine: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0220059.html
protocol: HTTPS
applicationProfile: Web browser
name: Project Metadata
description: Navigate directly to the URL for a descriptive web page with download links.
function: (CI_OnLineFunctionCode) information
onLine: (CI_OnlineResource)
linkage: https://doi.org/10.25921/m5wx-ja34
protocol: HTTPS
applicationProfile: Web browser
name: NCEI Dataset Landing Page
description: Navigate directly to the URL for a descriptive web page with download links.
function: (CI_OnLineFunctionCode) information
onLine: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/archive/accession/oas/220059
protocol: HTTPS
applicationProfile: Web browser
name: Descriptive Information
description: Navigate directly to the URL for a descriptive web page with download links.
function: (CI_OnLineFunctionCode) information
onLine: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/archive/accession/download/220059
protocol: HTTPS
applicationProfile: Web browser
name: HTTPS
description: Navigate directly to the URL for data access and direct download.
function: (CI_OnLineFunctionCode) download
onLine: (CI_OnlineResource)
linkage: ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0160/0220059/
protocol: FTP
applicationProfile: Any FTP client
name: FTP
description: These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
function: (CI_OnLineFunctionCode) download
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dataQualityInfo: (DQ_DataQuality)
scope: (DQ_Scope)
level: (MD_ScopeCode) dataset
lineage: (LI_Lineage)
processStep: (LE_ProcessStep)
description: NCEI Accession 0220059 v1.1 was published.
dateTime:
DateTime: 2020-09-28T19:11:00Z
output: (LE_Source)
sourceCitation: (CI_Citation)
title: NCEI Accession 0220059 v1.1
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individualName: (inapplicable)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/archive/accession/0220059/1.1
protocol: HTTPS
name: NCEI Accession 0220059 v1.1
description: published 2020-09-28T19:11:00Z
function: (CI_OnLineFunctionCode) download
role: (inapplicable)
processStep: (LE_ProcessStep)
description: NCEI Accession 0220059 was revised and v2.2 was published.
rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
dateTime:
DateTime: 2020-11-02T19:03:15Z
output: (LE_Source)
sourceCitation: (CI_Citation)
title: NCEI Accession 0220059 v2.2
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dateType: (CI_DateTypeCode) publication
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individualName: (inapplicable)
contactInfo: (CI_Contact)
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linkage: https://www.ncei.noaa.gov/archive/accession/0220059/2.2
protocol: HTTPS
name: NCEI Accession 0220059 v2.2
description: published 2020-11-02T19:03:15Z
function: (CI_OnLineFunctionCode) download
role: (inapplicable)
processStep: (LE_ProcessStep)
description: NCEI Accession 0220059 was revised and v3.3 was published.
rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
dateTime:
DateTime: 2021-09-15T23:38:07Z
output: (LE_Source)
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title: NCEI Accession 0220059 v3.3
date: (CI_Date)
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dateType: (CI_DateTypeCode) publication
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individualName: (inapplicable)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/archive/accession/0220059/3.3
protocol: HTTPS
name: NCEI Accession 0220059 v3.3
description: published 2021-09-15T23:38:07Z
function: (CI_OnLineFunctionCode) download
role: (inapplicable)
processStep: (LE_ProcessStep)
description: NCEI Accession 0220059 was revised and v4.4 was published.
rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
dateTime:
DateTime: 2023-06-01T22:31:18Z
output: (LE_Source)
sourceCitation: (CI_Citation)
title: NCEI Accession 0220059 v4.4
date: (CI_Date)
date: (inapplicable)
dateType: (CI_DateTypeCode) publication
citedResponsibleParty: (CI_ResponsibleParty)
individualName: (inapplicable)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/archive/accession/0220059/4.4
protocol: HTTPS
name: NCEI Accession 0220059 v4.4
description: published 2023-06-01T22:31:18Z
function: (CI_OnLineFunctionCode) download
role: (inapplicable)
processStep: (LE_ProcessStep)
description: NCEI Accession 0220059 was revised and v5.5 was published.
rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
dateTime:
DateTime: 2023-06-28T21:20:39Z
output: (LE_Source)
sourceCitation: (CI_Citation)
title: NCEI Accession 0220059 v5.5
date: (CI_Date)
date: (inapplicable)
dateType: (CI_DateTypeCode) publication
citedResponsibleParty: (CI_ResponsibleParty)
individualName: (inapplicable)
contactInfo: (CI_Contact)
onlineResource: (CI_OnlineResource)
linkage: https://www.ncei.noaa.gov/archive/accession/0220059/5.5
protocol: HTTPS
name: NCEI Accession 0220059 v5.5
description: published 2023-06-28T21:20:39Z
function: (CI_OnLineFunctionCode) download
role: (inapplicable)
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dataQualityInfo: (DQ_DataQuality)
scope: (DQ_Scope)
level: (MD_ScopeCode) dataset
lineage: (LI_Lineage)
processStep: (LE_ProcessStep)
description: Parameter or Variable: Time; Abbreviation: Time; Unit: days since 1985-01-01; Detailed sampling and analyzing information: min = 1985-01-01; max = 2022-12-15; calendar = proleptic_gregorian.
processStep: (LE_ProcessStep)
description: Parameter or Variable: Latitude; Abbreviation: lat (180); Unit: degrees_north; Detailed sampling and analyzing information: min = -89.5; max = 89.5.
processStep: (LE_ProcessStep)
description: Parameter or Variable: Longitude; Abbreviation: lon (360); Unit: degrees_east; Detailed sampling and analyzing information: min = -179.5; max = 179.5.
processStep: (LE_ProcessStep)
description: Parameter or Variable: surface_partial_pressure_of_carbon_dioxide_in_sea_water; Abbreviation: pCO2; Unit: µatm; Detailed sampling and analyzing information: description: surface ocean partial pressure of carbon dioxide estimated with gradient boosted decision trees (lightGBM) and feed-forward neural network (scikit-learn); predictors: xCO2glob, timeSin, timeCos, chlog_globcolour_filled, sst_ostia, sss_soda, u10_era5, v10_era5, mld_holte; testing_years: [1985 1990 1995 2000 2005 2010 2015]; validation_years: [1987 1992 1997 2002 2007 2012 2017].
processStep: (LE_ProcessStep)
description: Parameter or Variable: standard deviation of pCO2; Abbreviation: pCO2std; Unit: µatm; Detailed sampling and analyzing information: description: standard deviation of the 16 pCO2 ensemble members as an analog of uncertainty.
processStep: (LE_ProcessStep)
description: Parameter or Variable: total_alkalinity_in_sea_water; Abbreviation: TAlk; Unit: µmol/kg; Detailed sampling and analyzing information: description: Total alkalinity estimated with Support vector regression (scikit-learn); predictors: sst_ostia, sss_soda, nitrateStar_woa18, silicate_woa18, adt_aviso_clim; testing_years: [1986 1989 1992 1995 1998 2001 2004 2007 2010 2013 2016]; validation_years: [0].
processStep: (LE_ProcessStep)
description: Parameter or Variable: standard deviation of total alkalinity; Abbreviation: TAstd; Unit: µmol/kg; Detailed sampling and analyzing information: description: standard deviation of the 16 TA ensemble members as an analog of uncertainty.
processStep: (LE_ProcessStep)
description: Parameter or Variable: dissolved_inorganic_carbon_in_sea_water; Abbreviation: DIC; Unit: µmol/kg; Detailed sampling and analyzing information: description: DIC calculated with pyCO2SYS.
processStep: (LE_ProcessStep)
description: Parameter or Variable: pH on total scale; Abbreviation: pH; Unit: -log(H+); Detailed sampling and analyzing information: description: pH calculated with pyCO2SYS.
processStep: (LE_ProcessStep)
description: Parameter or Variable: Bicarbonate concentration; Abbreviation: HCO3; Unit: µmol/kg.
processStep: (LE_ProcessStep)
description: Parameter or Variable: omegaAr; Abbreviation: omegaAR; Unit: ratio.
processStep: (LE_ProcessStep)
description: Parameter or Variable: omegaAr; Abbreviation: omegaAR; Unit: ratio; Detailed sampling and analyzing information: description: aragonite saturation state, where values below are theoretically undersaturated.
processStep: (LE_ProcessStep)
description: Parameter or Variable: omegaCa; Abbreviation: omegaCA; Unit: ratio; Detailed sampling and analyzing information: description: calcite saturation state, where values below are theoretically undersaturated.
processStep: (LE_ProcessStep)
description: Parameter or Variable: sea_water_salinity, Practical Salinity; Abbreviation: salinity; Unit: psu; Detailed sampling and analyzing information: source; https://www2.atmos.umd.edu/%7Eocean/index_files/soda3.4.2_mn_download_b.htm; title: MOM5_SODA_3.4.2.; Method reference: Carton, J.A., G.A. Chepurin, and L. Chen, 2018a: SODA3: a new ocean climate reanalysis, J.Clim., 31, 6967-6983, https://doi.org/10.1175/JCLI-D-18-0149.1..
processStep: (LE_ProcessStep)
description: Parameter or Variable: sea_surface_foundation_temperature; Abbreviation: temperature; Unit: degC; Detailed sampling and analyzing information: title: OSTIA Sea Surface Temperature and Sea Ice Analysis; long_name: analysed sea surface temperature; entry_id: UKMO-L4HRfnd-GLOB-OSTIARAN; sst_type; foundation; Method reference: reference Merchant, C. J., Embury, O., Bulgin, C. E., Block, T., Corlett, G. K., Fiedler, E., … Donlon, C. J. (2019). Satellite-based time-series of sea-surface temperature since 1981 for climate applications. Scientific Data, 6(1), 223. https://doi.org/10.1038/s41597-019-0236-x .
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metadataMaintenance: (MD_MaintenanceInformation)
maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) asNeeded
maintenanceNote: Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
maintenanceNote: NCEI Accession 0220059 was revised and a new version of the archival package was published. Updates to existing archival packages may provide additional files or replace obsolete files. The latest version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. Please see journal.txt in the /about directory for additional details on changes made.
contact: (CI_ResponsibleParty)
organisationName: NOAA National Centers for Environmental Information
role: (CI_RoleCode) custodian
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acquisitionInformation: (MI_AcquisitionInformation)
instrument: (MI_Instrument)
identifier: (MD_Identifier)
code: carbon dioxide (CO2) gas analyzer
type: carbon dioxide (CO2) gas analyzer
description: measures gaseous carbon dioxide Carbon dioxide gas analyzer has often been referred to as LI-COR, because a lot of researchers choose to use products manufactured by LI-COR incorporation for their carbon dioxide measurement. The main component of a carbon dioxide analyzer is a nondispersive infrared (NDIR) spectroscopic sensors to detect CO2 in a gaseous environment by its characteristic absorption. Carbon dioxide (CO2) gas analyzer works together with carbon dioxide (CO2) equilibrator (insttypes_id 184) to measure carbon dioxide in the water. To measure water carbon dioxide, water needs to be continuously supplied to a showerhead inside an equilibrator. As the water flows through the equilibrator chamber, dissolved carbon dioxide exchanges quickly with air in the headspace. This air is then sampled by the carbon dioxide analyzer to determine the mole fraction of CO2 in water.
instrument: (MI_Instrument)
identifier: (MD_Identifier)
code: CTD
type: CTD
description: Conductivity-Temperature-Depth probe
instrument: (MI_Instrument)
identifier: (MD_Identifier)
code: Niskin bottle
type: Niskin bottle
description: Device for obtaining samples of seawater at a specific depth Why special entry for Niskin bottle but no entry for Nansen bottle?
platform: (MI_Platform)
identifier: (MD_Identifier)
code: VARIOUS CHARTERED VESSELS
description: VARIOUS CHARTERED VESSELS
instrument: (missing)
