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Dataset Overview | National Centers for Environmental Information (NCEI)

Dissolved inorganic carbon, pH, temperature, salinity and other variables collected from time series and surface observations using Moored Autonomous Dissolved Inorganic Carbon (MADIC) System, Sunburst SAMI2 pH sensor, and other instruments from Kewalo Buoy near the coast of Honolulu, Hawaii from 2013-10-31 to 2014-06-15 (NCEI Accession 0132048)

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To expand the number of tools available for autonomous carbonate system observations, we have developed a robust surface ocean dissolved inorganic carbon (DIC) sensor capable of extended (>year) field deployments with a laboratory determined uncertainty of plus/minus 5 umol kg-1. The prototype sensor was deployed off shore of Honolulu, Hawaii for seven months on a moored buoy equipped with a Sea-Bird Electronics CTD and SAMI pH sensor unit. The buoy was deployed ~25m from an existing CO2 buoy, which allowed us to over constrain the carbonate system and thoroughly evaluate the performance of the prototype DIC sensor. In addition, 51 discrete bottle samples were collected throughout the seven month deployment and analyzed for DIC via coulometry. Results from this field test confirm that direct measurement of DIC is ~90% more accurate than estimates of DIC calculated from contemporaneous and collocated measurements of pH and CO2. The improved accuracy from directly measuring DIC gives rise to new opportunities for quantitative, autonomous carbon cycle studies.
  • Cite as: Fassbender, Andrea J.; Sabine, Christopher L.; Meinig, Christian; De Carlo, Eric H. (2015). Dissolved inorganic carbon, pH, temperature, salinity and other variables collected from time series and surface observations using Moored Autonomous Dissolved Inorganic Carbon (MADIC) System, Sunburst SAMI2 pH sensor, and other instruments from Kewalo Buoy near the coast of Honolulu, Hawaii from 2013-10-31 to 2014-06-15 (NCEI Accession 0132048). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5rb72pt. Accessed [date].
gov.noaa.nodc:0132048
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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 2013-10-31 to 2014-06-15
Spatial Bounding Box Coordinates
West: -157.865
East: -157.865
South: 21.288
North: 21.288
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2015-10-30
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
Supplemental Information
PRINCIPAL INVESTIGATORS: Fassbender, Andrea J.; Sabine, Christopher L.; Meinig, Christian; and De Carlo, Eric H.

FUNDING AGENCY: NOAA's Ocean Acidification Program (OAP).
PROJECT TITLE: Advanced technology: Moored DIC.
PROJECT ID: OAPFY13.03.PMEL.006.

FUNDING AGENCY: NOAA's Climate Program Office.
PROJECT TITLE:
PROJECT ID: GC10-108.
Purpose To test the performance of a novel moored autonomous DIC sensor prototype.
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: Fassbender, Andrea J.; Sabine, Christopher L.; Meinig, Christian; De Carlo, Eric H. (2015). Dissolved inorganic carbon, pH, temperature, salinity and other variables collected from time series and surface observations using Moored Autonomous Dissolved Inorganic Carbon (MADIC) System, Sunburst SAMI2 pH sensor, and other instruments from Kewalo Buoy near the coast of Honolulu, Hawaii from 2013-10-31 to 2014-06-15 (NCEI Accession 0132048). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5rb72pt. Accessed [date].
Cited Authors
Principal Investigators
Contributors
Resource Providers
Publishers
Acknowledgments
  • Funding Information: NOAA Ocean Acidification Program (Advanced technology: Moored DIC, OAPFY13.03.PMEL.006)
  • Funding Information: NOAA Gobal Carbon Cycle Program (GC10-108)
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords OCADS Study Type
  • Surface measurement
  • Time series
Provider Keywords
  • Kewalo Buoy
  • MADIC
  • Moored Autonomous Dissolved Inorganic Carbon System
  • Sunburst SAMI-2 pH sensor
  • Sunburst SAMI2 pH sensor
Provider Variable Abbreviations
  • SSS
  • SST
  • pH
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
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
  • Coast of Honolulu, Hawaii
  • North Pacific Ocean
Project keywords NODC PROJECT NAMES THESAURUS Ocean Acidification Search Keywords
  • Ocean Acidification Program (OAP)
  • Ocean Carbon and Acidification Data System (OCADS) Project
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Fassbender, Andrea J.; Sabine, Christopher L.; Meinig, Christian; De Carlo, Eric H. (2015). Dissolved inorganic carbon, pH, temperature, salinity and other variables collected from time series and surface observations using Moored Autonomous Dissolved Inorganic Carbon (MADIC) System, Sunburst SAMI2 pH sensor, and other instruments from Kewalo Buoy near the coast of Honolulu, Hawaii from 2013-10-31 to 2014-06-15 (NCEI Accession 0132048). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5rb72pt. 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.
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  • 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
  • 2015-10-30T16:52:11Z - NCEI Accession 0132048 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: Dissolved Inorganic Carbon; Abbreviation: none; Unit: umol/kg; Observation type: Moored buoy; In-situ / Manipulation / Response variable: In-situ; Measured or calculated: Measured; Calculation method and parameters: none; Sampling instrument: Moored Autunomous Dissolved Inorganic Carbon (MADIC) System; Analyzing instrument: Moored Autunomous Dissolved Inorganic Carbon (MADIC) System; Detailed sampling and analyzing information: Equilibration of an acidified sea water sample with a close loop of initially CO2 free air. Measurement of CO2 in the gas phase at equilibrium using an infrared detector. Determination of DIC using Henry's Law and the Ideal Gas Law.; Standardization description: The infrared detector is calibrated prior to each measurming using a WMO traceable calibration gas housed on the buoy.; Standardization frequency: Every sample.; Preservation method: TBTO puck in the analyzer intake filter; Uncertainty: 11 umol/kg; Quality flag convention: 2 = good data, 3 = questionable data, 4 = bad data, 6 = missing data; Method reference: Fassbender, A.J., Sabine, C.L., Lawrence-Slavas, N., De Carlo, E.H., Meinig, C. and S. Maenner Jones (2015). Robust sensor for extended autonomous measurements of surface ocean dissolved inorganic carbon. Environmental Science and Technology, https://doi.org/10.1021/es5047183.; Researcher name: Andrea J. Fassbender; Researcher institution: NOAA PMEL.
  • Parameter or Variable: pH; Abbreviation: pH; pH scale: Total; Observation type: Moored buoy; In-situ / Manipulation / Response variable: In-situ; Measured or calculated: Measured; Sampling instrument: Sunburst SAMI2 pH; Analyzing instrument: Sunburst SAMI2 pH; At what temperature was pH reported: in situ; Quality flag convention: 2 = good data, 3 = questionable data, 4 = bad data, 6 = missing data; Method reference: Seidel, M. P., M. D. M. D. DeGrandpre, and A. G. Dickson (2008), A sensor for in situ indicator-based measurements of seawater pH, Mar. Chem., 109(1-2), 18-28, https://doi.org/10.1016/j.marchem.2007.11.013.; Researcher name: Andrea J. Fassbender; Researcher institution: NOAA PMEL.
  • Parameter or Variable: Sea Surface Temperature; Abbreviation: SST; Unit: Degrees Celcius; Observation type: Moored buoy; In-situ / Manipulation / Response variable: In-situ; Measured or calculated: Measured; Sampling instrument: Seabird 16plus V2 SeaCAT CTD; Analyzing instrument: Seabird 16plus V2 SeaCAT CTD; Uncertainty: less than 0.01 degrees Celsius; Quality flag convention: 2 = good data, 3 = questionable data, 4 = bad data, 6 = missing data; Researcher name: Andrea J. Fassbender; Researcher institution: NOAA PMEL.
  • Parameter or Variable: Sea Surface Salinity; Abbreviation: SSS; Observation type: Moored buoy; In-situ / Manipulation / Response variable: In-situ; Measured or calculated: Measured; Sampling instrument: Seabird 16plus V2 SeaCAT CTD; Analyzing instrument: Seabird 16plus V2 SeaCAT CTD; Uncertainty: less than 0.05; Quality flag convention: 2 = good data, 3 = questionable data, 4 = bad data, 6 = missing data; Researcher name: Andrea J. Fassbender; Researcher institution: NOAA PMEL .
Acquisition Information (collection)
Instrument
  • autonomous sensor to measure dissolved inorganic carbon (DIC)
  • thermosalinograph
Platform
  • moorings
Last Modified: 2024-03-25T12:21:30Z
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