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Compilation of dissolved organic matter (DOM) data obtained from global ocean observations from 1994 to 2020 (NCEI Accession 0227166)

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This NCEI Accession consists of measurements of dissolved organic matter (DOM) and other chemical and hydrographic parameters obtained during the global ocean observations from 1994-01-01 to 2019-12-31. Measurements of dissolved organic matter (DOM) in the open ocean have increased greatly since the late 1980's, spurred by the growth in scientific interest directed at the ocean carbon cycle. Analytical quality for determining the elemental concentrations of DOM was commonly low in those early years, but through great effort and use of consensus reference materials its quality has improved with time. The data in this compilation should be used with the trajectory of improved analytical quality with time in mind. DOM data generated by many laboratories around the world are typically made available in diverse, regional data archives, making them less available than necessary for the data value to be maximized. The effort here was to make ship-collected bottle data accessible more directly and in uniform format. The emphasis was on spatial coverage of the global ocean, so the well-known and ongoing time-series data (such as the Bermuda Atlantic Time-series Study and Hawaiian Ocean Time-series) are not included; nor are coastal waters well represented in this first version. While the focus of this compilation is largely on dissolved organic carbon (DOC) and total dissolved nitrogen (TDN), we extended coverage to include the less frequently determined DOM isotopes (13C, 14C), select wavelengths and a single spectral slope of colored dissolved organic matter (CDOM), and DOM composition (i.e., dissolved combined neutral sugars). To the extent possible, the DOM data have been complemented with hydrographic data (e.g., temperature and salinity), other biogeochemical variables (e.g., oxygen, nutrients), the inorganic carbon system [e.g., dissolved inorganic carbon (with isotopes when available), pH, and total alkalinity], and anthropogenic (chlorofluorocarbons, sulfur hexafluoride, carbon tetrachloride) and natural tracers (neon, helium, tritium). A very few data are included for biological variables such as bacterial abundance and chlorophyll a concentrations. These data are from all ocean basins taken from 230 cruises in the global ocean, providing 94324 measures of DOC (full water column where available) and 29113 measures of TDN (limited to the surface 250 m).
  • Cite as: Hansell, Dennis A.; Carlson, Craig A.; Amon, Rainer M. W.; Álvarez-Salgado, X. Antón; Yamashita, Youhei; Romera-Castillo, Cristina; Bif, Mariana B. (2021). Compilation of dissolved organic matter (DOM) data obtained from global ocean observations from 1994 to 2020 (NCEI Accession 0227166). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/s4f4-ye35. Accessed [date].
gov.noaa.nodc:0227166
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Distributor NOAA National Centers for Environmental Information
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 1994-01-01 to 2019-12-31
Spatial Bounding Box Coordinates
N: 90
S: -90
E: 180
W: -180
Spatial Coverage Map
General Documentation
Publication Dates
  • publication: 2021-03-26
  • revision: 2021-04-27
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Purpose Compilation of dissolved organic matter data from the global ocean since 1994
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Hansell, Dennis A.; Carlson, Craig A.; Amon, Rainer M. W.; Álvarez-Salgado, X. Antón; Yamashita, Youhei; Romera-Castillo, Cristina; Bif, Mariana B. (2021). Compilation of dissolved organic matter (DOM) data obtained from global ocean observations from 1994 to 2020 (NCEI Accession 0227166). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/s4f4-ye35. Accessed [date].
Cited Authors
  • Hansell, Dennis A.
  • Carlson, Craig A.
  • Amon, Rainer M. W.
  • Álvarez-Salgado, X. Antón
  • Yamashita, Youhei
  • Romera-Castillo, Cristina
  • Bif, Mariana B.
Principal Investigators
Contributors
Resource Providers
Publishers
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords OCADS Study Type
  • Discrete measurement
Provider Variable Names
  • Alkalinity
  • Ammonium
  • Arabinose
  • Bacterial Abundance
  • CDOM254
  • CDOM280
  • CDOM325
  • CDOM350
  • CFC-11
  • CFC-113
  • CFC-12
  • CTD Oxygen
  • CTD Pressure
  • CTD Salinity
  • CTD Temperature
  • Chlorophyll a
  • DIC
  • DOC
  • Del-13DIC
  • Del-13DOC
  • Del-14DIC
  • Del-14DOC
  • DelHe3
  • Fucose
  • GLUCOSE
  • Helium
  • Manose
  • N2O
  • Neon
  • Nitrate
  • Nitrite
  • POC
  • PON
  • Rhamnose
  • SF6
  • Silicic Acid
  • SpecSlope (275-295)
  • TDN
  • Tritium
  • pCO2
  • pH_TOT
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Platform keywords NODC PLATFORM NAMES THESAURUS
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords Provider Geographic Names
  • Arctic Ocean
  • Atlantic Ocean
  • Global Ocean
  • Indian Ocean
  • Pacific Ocean
  • Southern Ocean
Project keywords NODC PROJECT NAMES THESAURUS Cruise ID
  • 230 Cruise IDs
EXPOCODE
  • 230 EXPOCODES
Global Change Master Directory (GCMD) Project Keywords Ocean Acidification Search Keywords
  • Ocean Acidification Data Stewardship (OADS) Project
  • Ocean Carbon Data System (OCADS) Project
  • Ocean Carbon and Acidification Data System (OCADS) Project
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Hansell, Dennis A.; Carlson, Craig A.; Amon, Rainer M. W.; Álvarez-Salgado, X. Antón; Yamashita, Youhei; Romera-Castillo, Cristina; Bif, Mariana B. (2021). Compilation of dissolved organic matter (DOM) data obtained from global ocean observations from 1994 to 2020 (NCEI Accession 0227166). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/s4f4-ye35. Accessed [date].
Access Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
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.
Lineage information for: dataset
Processing Steps
  • 2021-03-26T21:34:35Z - NCEI Accession 0227166 v1.1 was published.
  • 2021-04-19T23:24:13Z - NCEI Accession 0227166 was revised and v2.2 was published.
    Rationale: Updates were received for this data set. 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.
  • 2021-04-27T22:38:49Z - NCEI Accession 0227166 was revised and v3.3 was published.
    Rationale: Updates were received for this data set. 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.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: Dissolved Inorganic Carbon; Abbreviation: DIC; Unit: μmol/kg; Measured or calculated: Measured; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Total alkalinity; Abbreviation: Alkalinity; Unit: μmol/kg; Measured or calculated: Measured; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: pH; Abbreviation: pH_TOT; pH scale: Total; Measured or calculated: Both; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: pCO2 (fCO2) discrete; Abbreviation: pCO2; Unit: μatm; Measured or calculated: Measured; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Pressure; Abbreviation: CTD Pressure; Unit: dbar; Observation type: sensor; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Temperature; Abbreviation: CTD Temperature; Unit: ITS-90; Observation type: sensor; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Salinity; Abbreviation: CTD Salinity; Unit: PSS-78; Observation type: sensor; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Oxygen; Abbreviation: CTD Oxygen; Unit: μmol/kg; Observation type: sensor; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Chlorophyll a; Abbreviation: Chlorophyll a; Unit: μg/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Bacterial Abundance; Abbreviation: Bacterial Abundance; Unit: x10e5/ML; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Silicic Acid; Abbreviation: Silicic Acid; Unit: μmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Nitrate; Abbreviation: Nitrate; Unit: μmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Nitrite; Abbreviation: Nitrite; Unit: μmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Ammonium; Abbreviation: Ammonium; Unit: μmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Chlorofluorocarbon 11; Abbreviation: CFC-11; Unit: pmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Chlorofluorocarbon 12; Abbreviation: CFC-12; Unit: pmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Chlorofluorocarbon 113; Abbreviation: CFC-113; Unit: pmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Sulfur Hexafluoride in fmol/kg; Abbreviation: SF6; Unit: fmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Organic Carbon; Abbreviation: DOC; Unit: μmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Total Dissolved Nitrogen; Abbreviation: TDN; Unit: μmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Particulate Organic Carbon; Abbreviation: POC; Unit: μmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Particulate Organic Nitrogen; Abbreviation: PON; Unit: μmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Nitrous Oxide in nmol/kg; Abbreviation: N2O; Unit: nmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Del 13C content of Dissolved Inorganic Carbon; Abbreviation: Del-13DIC; Unit: permille; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Del 14C content of Dissolved Inorganic Carbon; Abbreviation: Del-14DIC; Unit: permille; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Del 13C content of Dissolved Organic Carbon; Abbreviation: Del-13DOC; Unit: permille; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Del 14C content of Dissolved Organic Carbon; Abbreviation: Del-14DOC; Unit: permille; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Absorption coefficient of dissolved organic matter at 254 nm; Abbreviation: CDOM254; Unit: /meter; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Absorption coefficient of dissolved organic matter at 280 nm; Abbreviation: CDOM280; Unit: /meter; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Absorption coefficient of dissolved organic matter at 325 nm; Abbreviation: CDOM325; Unit: /meter; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Absorption coefficient of dissolved organic matter at 350 nm; Abbreviation: CDOM350; Unit: /meter; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Spectral Slope from 275 to 295 nanometers in /nanometer; Abbreviation: SpecSlope (275-295); Unit: /nanometer; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Fucose; Abbreviation: Fucose; Unit: nmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Glucose in nmol/kg; Abbreviation: GLUCOSE; Unit: nmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Manose; Abbreviation: Manose; Unit: nmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Rhamnose; Abbreviation: Rhamnose; Unit: nmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Arabinose; Abbreviation: Arabinose; Unit: nmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Tritium; Abbreviation: Tritium; Unit: TU; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Neon; Abbreviation: Neon; Unit: nmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Dissolved Helium; Abbreviation: Helium; Unit: nmol/kg; Quality flag convention: WOCE bottle parameter data quality codes.
  • Parameter or Variable: Helium isotope ratio anomaly relative to atmosphere; Abbreviation: DelHe3; Unit: %; Quality flag convention: WOCE bottle parameter data quality codes .
Acquisition Information (collection)
Instrument
  • CTD
  • Niskin bottle
  • nutrient autoanalyzer
  • oxygen sensor
  • salinometer
  • titrator
Platform
  • VARIOUS CHARTERED VESSELS
Last Modified: 2021-04-28T12:14:35Z
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