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Dataset Overview | National Centers for Environmental Information (NCEI)

Dissolved inorganic carbon, total alkalinity, water temperature, salinity and other parameters collected from profile discrete observations using CTD, Niskin Bottles and other instruments during the R/V Knorr cruise KN2011-4 (EXPOCODE 316N20110426), in the North Atlantic Ocean from 2011-04-26 to 2011-05-02 (NCEI Accession 0240321)

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This dataset contains profile discrete measurements of dissolved inorganic carbon, total alkalinity, water temperature, salinity and other parameters collected from profile discrete observations using CTD, Niskin Bottles and other instruments during the R/V Knorr cruise KN2011-4 (EXPOCODE 316N20110426), in the North Atlantic Ocean from 2011-04-26 to 2011-05-02. Increasing amounts of atmospheric carbon dioxide from human industrial activities are causing changes in global ocean carbon chemistry. Through the SOOP program we measure air and ocean surface pCO2 and take discrete samples of other carbon parameters. This effort is in support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP) and the Climate Program Office.
  • Cite as: Wanninkhof, Rik; Barbero, Leticia (2021). Dissolved inorganic carbon, total alkalinity, water temperature, salinity and other parameters collected from profile discrete observations using CTD, Niskin Bottles and other instruments during the R/V Knorr cruise KN2011-4 (EXPOCODE 316N20110426), in the North Atlantic Ocean from 2011-04-26 to 2011-05-02 (NCEI Accession 0240321). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/qcfm-vn76. Accessed [date].
gov.noaa.nodc:0240321
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Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 2011-04-26 to 2011-05-02
Spatial Bounding Box Coordinates
West: -79.687
East: -76.481
South: 26.496
North: 27.029
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2021-08-21
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 To measure key carbon, physical and biogeochemical parameters in surface waters and monitor changes over time.
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: Wanninkhof, Rik; Barbero, Leticia (2021). Dissolved inorganic carbon, total alkalinity, water temperature, salinity and other parameters collected from profile discrete observations using CTD, Niskin Bottles and other instruments during the R/V Knorr cruise KN2011-4 (EXPOCODE 316N20110426), in the North Atlantic Ocean from 2011-04-26 to 2011-05-02 (NCEI Accession 0240321). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/qcfm-vn76. Accessed [date].
Cited Authors
Principal Investigators
Contributors
Resource Providers
Publishers
Acknowledgments
  • Funding Information: NOAA Climate Program Office; NOAA's Ocean Acidification Program (Quantifying sea-air CO2 fluxes using surface water pCO2 measurements from ships of opportunity, Ocean acidification Ship of Opportunity (SOOP))
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
  • Surface measurement
Provider Variable Abbreviations
  • CTDSAL_PSS78
  • DIC
  • SST_C
  • TA
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords
Platform keywords NODC PLATFORM NAMES THESAURUS Global Change Master Directory (GCMD) Platform Keywords ICES/SeaDataNet Ship Codes
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
  • North Atlantic Ocean
Project keywords NODC PROJECT NAMES THESAURUS Cruise ID
  • KN2011-4, WBTS
EXPOCODE
  • 316N20110426
Ocean Acidification Search Keywords
  • Ocean Acidification Program (OAP)
  • Ocean Carbon and Acidification Data System (OCADS) Project
Reference Section ID
  • Coastal
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Wanninkhof, Rik; Barbero, Leticia (2021). Dissolved inorganic carbon, total alkalinity, water temperature, salinity and other parameters collected from profile discrete observations using CTD, Niskin Bottles and other instruments during the R/V Knorr cruise KN2011-4 (EXPOCODE 316N20110426), in the North Atlantic Ocean from 2011-04-26 to 2011-05-02 (NCEI Accession 0240321). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/qcfm-vn76. 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
  • 2021-08-21T04:40:37Z - NCEI Accession 0240321 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: Dissolved Inorganic Carbon; Abbreviation: DIC; Unit: micro-mol/kg; Observation type: Discrete profile measurement; In-situ / Manipulation / Response variable: In-situ observation; Measured or calculated: Measured; Sampling instrument: CTD, Niskin Bottles; Analyzing instrument: Coulometer used: AOML3 (SOMMA #3); AOML4 (SOMMA #4); Detailed sampling and analyzing information: Analysis date: July, 2011 Coulometer used: AOML3 and 4 (DICE 3 and 4) Samples were run on two DICE that each were experiencing problems with high blanks and interface issues causing the loop temperatures not to be read and, by using a default of “0” causing incorrect cal. Factors. All calculations had to be done from scrap. Sample bottles 179,178, and 180 had quality flags of “4”. The calculated value looks OK but CRM was > 165 too high. Blank: average = 24; minimum = 14; maximum = 30 counts Run time: average = 13; minimum = 8; maximum = 20 minutes CRM # used and assigned value (include both DIC and salinity): Meas CRM cert CRM meas sal cert sal batch 2171.53 2006.5 32.801 33.357 80 for bottles 179,178, 181: all QC’d as “4” 2005.98 2006.5 33.114 33.357 80 2006.47 2006.5 32.049 33.357 80 2002.01 2000.44 33.11 33.326 85 Reproducibility: (# samples and average difference): 4 sets of duplicate samples, average difference 1.3 umol/kg (standard deviation of 4 differences = 1.1 umol/kg). One duplicate discarded. CRM, salinity and HgCl2 correction applied: Salinity correction was applied using salinity from CTD (that is, corrected the density) Remarks - The volume correction was applied due to added HgCl2 (Measured DIC*1.00037). The first CRM of each cell was used for a CRM correction.; CRM manufacturer: Dr. A. Dickson of UCSD; CRM batch number: Batch; Preservation method: saturated HgCl2; Preservative volume: 0.2 ml; Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value, 5 = value not reported, 6 = mean of replicate measurements, 9 = sample not drawn.; Researcher name: Rik Wanninkhof, Leticia Barbero; Researcher institution: Atlantic Oceanographic and Meteorological Laboratory, National Oceanic and Atmospheric Administration (NOAA).
  • Parameter or Variable: Total alkalinity; Abbreviation: TA; Unit: micro-mol/kg; Observation type: Discrete and profile measurement; In-situ / Manipulation / Response variable: In-situ observation; Measured or calculated: Measured; Sampling instrument: CTD, Niskin Bottles; Type of titration: Full Titration; Cell type (open or closed): Open; Curve fitting method: Least-Square Analysis; Detailed sampling and analyzing information: The results posted are duplicate analyses from the same DIC sample bottles. Analysis date: 08/15/2011 to 08/17/2011 Titration system used: Open cell CRM # used and assigned value: Meas CRM cert CRM batch 2175.90 2212.40 96 2145.12 2184.03 85 2152.75 2184.03 85 Reproducibility: (# samples and average difference): 5 sets of duplicate samples, average difference 2.4 umol/kg ± 1.6 umol/kg. CRM correction applied. CRMs ran at start and end of the analyses were used for the CRM correction.; CRM manufacturer: Dr. A. Dickson of UCSD; CRM batch number: CRM batch:; Preservation method: saturated HgCl2; Preservative volume: 0.2 ml; Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value, 5 = value not reported, 6 = mean of replicate measurements, 9 = sample not drawn.; Method reference: Millero, F. J., Zhang, J. Z., Lee, K., and Campbell, D. M. (1993). Titration alkalinity of seawater. Marine Chemistry, 44(2), 153-165.; Researcher name: Rik Wanninkhof, Leticia Barbero; Researcher institution: Atlantic Oceanographic and Meteorological Laboratory, National Oceanic and Atmospheric Administration (NOAA).
  • Parameter or Variable: Water temperature; Abbreviation: SST_C; Unit: degrees celsius (ITS-90); Observation type: Flow-through, CTD; In-situ / Manipulation / Response variable: In-situ observation; Measured or calculated: Measured; Sampling instrument: SBE 38; Uncertainty: plus or minus 0.001 degrees celsius; Researcher name: Rik Wanninkhof; Researcher institution: Atlantic Oceanographic and Meteorological Laboratory, National Oceanic and Atmospheric Administration (NOAA).
  • Parameter or Variable: Salinity; Abbreviation: CTDSAL_PSS78; Unit: practical salinity scale of 1978; Observation type: Flow-through, CTD; In-situ / Manipulation / Response variable: In-situ observation; Sampling instrument: SBE 45; Uncertainty: plus or minus 0.005; Researcher name: Rik Wanninkhof; Researcher institution: Atlantic Oceanographic and Meteorological Laboratory, National Oceanic and Atmospheric Administration (NOAA) .
Acquisition Information (collection)
Instrument
  • carbon dioxide (CO2) gas analyzer
  • CTD
  • Niskin bottle
  • titrator
Platform
  • R/V Knorr
Last Modified: 2024-03-08T13:20:29Z
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