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Dataset Overview | National Centers for Environmental Information (NCEI)

High-resolution record of surface seawater carbon dioxide (CO2) content collected from Hakai Institute Quadra Island Field Station in Hyacinthe Bay, British Columbia, Canada from 2014-12-19 to 2023-12-19 (NCEI Accession 0208638)

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This dataset includes continuous sea surface measurements of partial pressure of carbon dioxide (pCO2), sea surface temperature and salinity collected from Hakai Institute Quadra Island Field Station in Hyacinthe Bay, British Columbia, Canada from 2014-12-19 to 2023-12-19. Quadra Island, at the northern terminus of the Salish Sea, has been a site for shore-based and high-resolution measurement of surface seawater CO2 content since December 2014. Measurements of in situ temperature, salinity, and CO2 partial pressure are made near-continuously on seawater drawn from a sample line with an intake 50 m from shore and a depth of 1 m in Hyacinthe Bay on the eastern side of Quadra Island. The effort to collect these data are part of the Hakai Institute’s directive to advance the understanding of carbon cycling in northeast Pacific coastal settings with specific emphasis on ocean acidification.
  • Cite as: Evans, Wiley; Pocock, Katie; Weekes, Carrie; Hare, Alex (2020). High-resolution record of surface seawater carbon dioxide (CO2) content collected from Hakai Institute Quadra Island Field Station in Hyacinthe Bay, British Columbia, Canada from 2014-12-19 to 2023-12-19 (NCEI Accession 0208638). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/v5j2-x847. Accessed [date].
gov.noaa.nodc:0208638
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Distribution Formats
  • Originator data format
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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 2014-12-19 to 2023-12-19
Spatial Bounding Box Coordinates
West: -125.222
East: -125.222
South: 50.116
North: 50.116
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2020-02-03
  • revision: 2024-01-06
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
In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.
Purpose The major objectives of the present data-set were to document the distribution of surface fCO2, salinity, temperature in the Indian Ocean and the Mozambique Channel, including a detailed study of the carbon cycle in coral reefs (Eparses Islands). Part of the cruise (open ocean waters) was conducted onboard R/V Marion-Dufresne along the same track as OISO-11 cruise in Jan-2004 (NCEI Accession 0080996).
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: Evans, Wiley; Pocock, Katie; Weekes, Carrie; Hare, Alex (2020). High-resolution record of surface seawater carbon dioxide (CO2) content collected from Hakai Institute Quadra Island Field Station in Hyacinthe Bay, British Columbia, Canada from 2014-12-19 to 2023-12-19 (NCEI Accession 0208638). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/v5j2-x847. Accessed [date].
Cited Authors
Principal Investigators
Contributors
Resource Providers
Publishers
Acknowledgments
  • Funding Information: Tule Foundation’s Hakai Institute
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords OCADS Study Type
  • Continuous measurement
  • Discrete measurement
  • Surface measurement
Provider Variable Abbreviations
  • SST
  • Salinity
  • pCO2
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
  • British Columbia coast
  • North Pacific Ocean
  • Northern Salish Sea
  • Quadra Island
Project keywords NODC PROJECT NAMES THESAURUS Cruise ID
  • QuadraBoL_Apr2016_Dec2017
  • QuadraBoL_Jan2018_Dec2019
  • QuadraBoL_Jan2020_Dec2020
  • QuadraBoL_Jan2021_Dec2021
  • QuadraBoL_Jan2022_Dec2022
  • QuadraBoL_Jan2023_Dec2023
  • QuadraSUPERCO2_Dec2014_Apr2016
EXPOCODE
  • 189920141219
  • 189920160407
  • 189920180101
  • 189920200101
  • 189920210101
  • 189920220101
  • 189920230101
Ocean Acidification Search Keywords
  • Ocean Carbon and Acidification Data System (OCADS) Project
Reference Section ID
  • Time Series
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Evans, Wiley; Pocock, Katie; Weekes, Carrie; Hare, Alex (2020). High-resolution record of surface seawater carbon dioxide (CO2) content collected from Hakai Institute Quadra Island Field Station in Hyacinthe Bay, British Columbia, Canada from 2014-12-19 to 2023-12-19 (NCEI Accession 0208638). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/v5j2-x847. 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
  • 2020-02-03T22:15:17Z - NCEI Accession 0208638 v1.1 was published.
  • 2021-01-28T22:26:41Z - NCEI Accession 0208638 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.
  • 2021-05-07T19:26:59Z - NCEI Accession 0208638 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.
  • 2022-01-14T22:35:37Z - NCEI Accession 0208638 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.
  • 2023-01-31T21:28:34Z - NCEI Accession 0208638 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.
  • 2024-01-06T11:59:52Z - NCEI Accession 0208638 was revised and v6.6 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.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: pCO2 (fCO2) autonomous; Abbreviation: pCO2; Unit: µatm; Observation type: measurements from continuously flowing seawater stream; Measured or calculated: Measured; Sampling instrument: Sunburst Sensors Shipboard Underway pCO2 Environmental Recorder (with showerhead equilibrator); Location of seawater intake: Seawater drawn from 1-m depth approximately 50 m from shore; Analyzing instrument: Sunburst Sensors Shipboard Underway pCO2 Environmental Recorder uses a LI-COR LI-840A non-dispersive infrared detector; Detailed sampling and analyzing information: Seawater pCO2 data were calculated from corrected measurements of CO2 mixing ratio (xCO2) made using a Sunburst Sensors Shipboard Underway pCO2 Environmental Recorder (SUPERCO2) following many recommended protocols by Pierrot et al. (2009) with the system theory and calculations described in detail elsewhere (Hales et al., 2004; Evans et al., 2015; Evans et al., 2019). Seawater continuously flowed at 1 GPM first through a Sea-Bird Electronics SBE 45 MicroTSG Thermosalinograph and then to the equilibrator (showerhead). Carrier gas (marine air) is pumped into the equilibrator from the electronics box of the SUPERCO2 at ~100 ml min-1. Full equilibration was verified by injecting high and low CO2 gas standard into the equilibration chamber and verifying carrier gas concentrations returned to the same pre-disturbance xCO2. These tests also revealed the response time of the equilibrator to be ~5 mins. Equilibrated carrier gas is then supplied to a non-dispersive infrared gas analyzer (LI-COR LI840A CO2/H2O) housed within the electronics box. Carrier gas is then recirculated through the system, minimizing the need for make-up by the equilibrator. Pressure and temperature were continuously measured in the equilibrators using a Honeywell ASCX Microstructure Pressure Sensor and an Omega Fast Response RTD, respectively. Equilibrated carrier gas, three standard gases of known mixing ratio (nominally 150, 450, and 750 ppm), and unaltered marine air were all plumbed to provide gas flow to the electronics box. The system is controlled using National Instruments LabVIEW software. The software controls data acquisition from the thermosalinograph, the pressure and temperature sensors, and the LI-COR; while also controlling Valco Instruments Co. Inc. (VICI) multi-port actuators that cycle between the gas streams plumbed to the electronics box. None of the gas streams were dried prior to analysis, and all measurements were made at 2 Hz. The prescribed measurement scheme controlled by the software was to supply equilibrated carrier gas from the equilibrator to the LI-COR continuously for 720 minutes, then cycle the actuators to consecutively allow for the standard gas streams and unaltered marine air to be measured for 90 s each at 100 ml min-1 before returning to sample the carrier gas equilibrated with seawater xCO2. From each sequence of standard gas measurements, the final 20 s of data in the 80 s interval before the actuator changed position were used to construct calibration functions that were then interpolated in time between standard gas sequences. These functions were then used to calibrate the xCO2 measurements of seawater equilibrated carrier gas. Corrected seawater xCO2 was subsequently adjusted for under- or over-pressurization in the equilibrator using the ratio of equilibrator to vented LI-COR cell pressure, and then converted to pCO2 using atmospheric pressure measured by the LI-COR. The 2 Hz seawater pCO2, temperature and salinity data were quality controlled by removing questionable measurements, and then averaged in 5-min interval bins.; Standardization technique: xCO2 calibration functions developed during periodic sequential analysis of gas standards of known concentration (nominally 150, 450, and 750 ppm); Standardization frequency: Every 720 minutes.; Standard gas manufacturer: Scott-Marrin Inc.; Standard gas uncertainty: 2 ppm for calibrated xCO2; 2 µatm for pCO2; Uncertainty: 2 µatm; Quality flag convention: no quality flag applied; Method reference: Hales, B., D. Chipman, and T. Takahashi (2004), High-frequency measurements of partial pressure and total concentration of carbon dioxide in seawater using microporous hydrophobic membrane contactors, Limnology and Oceanography: Methods, 2, 356-364; Pierrot, D., C. Neill, K. Sullivan, R. Castle, R. Wanninkhof, H. Lüger, T. Johannessen, A. Olsen, R. A. Feely, and C. E. Cosca (2009), Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines, Deep Sea Research Part II: Topical Studies in Oceanography, 56(8-10), 512-522, https://doi.org/10.1016/j.dsr2.2008.12.005; Evans, W., Mathis, J.T., Ramsay, J., and Hetrick, J. (2015). On the Frontline: Tracking Ocean Acidification in an Alaskan Shellfish Hatchery. PLoS One 10, e0130384; Evans, W., Pocock, K., Hare, A., Weekes, C., Hales, B., Jackson, J., Gurney-Smith, H., Mathis, J.T., Alin, S.R., and Feely, R.A. (2019). Marine CO2 Patterns in the Northern Salish Sea. Frontiers in Marine Science 5, https://doi.org/10.3389/fmars.2018.00536.; Researcher name: Wiley Evans; Researcher institution: Hakai Institute.
  • Parameter or Variable: Sea surface temperature; Abbreviation: SST; Unit: °C, ITS-90 scale; Observation type: measurements from continuously flowing seawater stream; Analyzing instrument: Sea-Bird SBE 45 MicroTSG Thermosalinograph; Detailed sampling and analyzing information: 1 Hz data captured using National Instruments LabVIEW software; Uncertainty: 0.002°C; Researcher name: Wiley Evans; Researcher institution: Hakai Institute.
  • Parameter or Variable: Sea surface salinity; Abbreviation: Salinity; Unit: 1978 Practical Salinity Scale; Observation type: measurements from continuously flowing seawater stream; Analyzing instrument: Sea-Bird SBE 45 MicroTSG Thermosalinograph; Detailed sampling and analyzing information: 1 Hz data captured using National Instruments LabVIEW software; Uncertainty: 0.003 S/m; Researcher name: Wiley Evans; Researcher institution: Hakai Institute .
Acquisition Information (collection)
Instrument
  • carbon dioxide (CO2) gas analyzer
  • salinometer
  • temperature sensor
Platform
  • UNKNOWN PLATFORMS OF CANADA
Last Modified: 2024-06-10T13:08:17Z
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