gov.noaa.nodc:0208810 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-05-06T13:09:44Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Surface seawater and marine boundary layer partial pressure of carbon dioxide (pCO2), temperature and salinity observations made from the Kwakshua Channel (KC) Buoy off the central coast of British Columbia (NCEI Accession 0208810) 2020-02-03 publication 2026-01-26 revision 2020-01-29 creation International DOI Foundation (IDF) 10.25921/8q3v-0k22 NOAA National Centers for Environmental Information gov.noaa.nodc:0208810 NCEI Archive Management System 0208810 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Wiley Evans Hakai Institute wiley.evans@hakai.org https://hakai.org/ HTTPS Hakai Institute website Institution web page information resourceProvider Hakai Institute https://hakai.org/ HTTPS Hakai Institute website Institution web page information resourceProvider Wiley Evans Hakai Institute wiley.evans@hakai.org https://hakai.org/ HTTPS Hakai Institute website Institution web page information principalInvestigator Katie Pocock Hakai Institute https://hakai.org/ HTTPS Hakai Institute website Institution web page information principalInvestigator Shawn Hateley Hakai Institute https://hakai.org/ HTTPS Hakai Institute website Institution web page information principalInvestigator Jessy Barrette Hakai Institute https://hakai.org/ HTTPS Hakai Institute website Institution web page information principalInvestigator Evans, Wiley Hakai Institute https://hakai.org/ HTTPS Hakai Institute website Institution web page information author Pocock, Katie Hakai Institute https://hakai.org/ HTTPS Hakai Institute website Institution web page information author Hateley, Shawn Hakai Institute https://hakai.org/ HTTPS Hakai Institute website Institution web page information author Barrette, Jessy Hakai Institute https://hakai.org/ HTTPS Hakai Institute website Institution web page information author Hakai Institute https://hakai.org/ HTTPS Hakai Institute website Institution web page information contributor tableDigital This dataset includes continuous sea surface measurements of partial pressure of carbon dioxide (pCO2), sea surface temperature and salinity collected from the Kwakshua Channel (KC) Buoy off the central coast of British Columbia from 2018-05-01 to 2025-11-24. Kwakshua Channel, located near Fitz Hugh Sound on the central coast of British Columbia, has been a site for moored, high-resolution measurements of surface seawater and marine boundary layer CO2 content since May 2018. Measurements of in situ temperature, salinity, seawater and atmospheric CO2 partial pressure are made every 30 minutes using a Battelle Seaology (MApCO2) System. 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. This dataset is available to the public for a wide variety of uses including scientific research and analysis. Funding Information: Tule Foundation’s Hakai Institute completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded NCEI Accession 0208810 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. https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0208810 Preview graphic PNG 0208810 NCEI ACCESSION NUMBER 2026-01-13 publication BAROMETRIC PRESSURE Delta pCO2 Partial pressure (or fugacity) of carbon dioxide - atmosphere partial pressure of carbon dioxide - water SALINITY WATER TEMPERATURE xCO2 atmosphere xCO2 seawater theme NODC DATA TYPES THESAURUS barometric pressure sensor bubble type equilibrator for autonomous carbon dioxide (CO2) measurement salinometer temperature sensor instrument NODC INSTRUMENT TYPES THESAURUS chemical meteorological moored buoy physical surface measurements time series theme NODC OBSERVATION TYPES THESAURUS FIXED PLATFORM OF CANADA platform NODC PLATFORM NAMES THESAURUS Hakai Institute dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Hakai Institute dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Surface Ocean CO2 Atlas (SOCAT) project NODC PROJECT NAMES THESAURUS Coastal Waters of Southeast Alaska and British Columbia North Pacific Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication KC_BUOY_Aug2024_Apr2025 KC_BUOY_Jun2025_Nov2025 KC_BUOY_May2018_Oct2020 KC_BUOY_Nov2022_May2023 KC_BUOY_Oct2020_Sept2021 KC_BUOY_Oct2021_Nov2022 KC_BUOY_Oct2023_Dec2023 project Cruise ID 187F20180501 187F20201027 187F20211007 187F20221129 187F20231016 187F20240808 187F20250626 project EXPOCODE Ocean Carbon and Acidification Data System (OCADS) Project project Ocean Acidification Search Keywords Moorings and Time Series project Reference Section ID EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > ATMOSPHERIC CARBON DIOXIDE > PARTIAL PRESSURE OF CARBON DIOXIDE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Continuous measurement Discrete measurement Surface measurement theme OCADS Study Type SST SW pCO2 wet SST TSG Salinity theme Provider Variable Abbreviations BAROMETERS > BAROMETERS EQUILIBRATORS SALINOMETERS TEMPERATURE SENSORS > TEMPERATURE SENSORS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian FIXED OBSERVATION STATIONS > FIXED OBSERVATION STATIONS platform Global Change Master Directory (GCMD) Platform Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Central British Columbia coast Fitz Hugh Sound Kwakshua Channel North Pacific Ocean place Provider Geographic Names accessLevel: public otherRestrictions Cite as: Evans, Wiley; Pocock, Katie; Hateley, Shawn; Barrette, Jessy (2020). Surface seawater and marine boundary layer partial pressure of carbon dioxide (pCO2), temperature and salinity observations made from the Kwakshua Channel (KC) Buoy off the central coast of British Columbia (NCEI Accession 0208810). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/8q3v-0k22. Accessed [date]. 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. otherRestrictions 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. Pacific Ocean Time-series and Moorings 2022 publication https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Pacific.html HTTPS https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Pacific.html Related resource information NOAA National Centers for Environmental Information (NCEI) publisher documentDigital crossReference project 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 2022-04 publication https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system HTTPS https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system OCADS website information NOAA National Centers for Environmental Information author NOAA National Centers for Environmental Information (NCEI) publisher documentDigital [accessed 2024-02-08] crossReference program eng; USA utf8 environment oceans climatologyMeteorologyAtmosphere -127.9697 -127.9697 51.6507 51.6507 2018-05-01 2025-11-24 In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number. NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact 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. Contact NCEI for other distribution options and instructions. Originator data format 8.6 https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0208810.html HTTPS Web browser Project Metadata Navigate directly to the URL for a descriptive web page with download links. information https://doi.org/10.25921/8q3v-0k22 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/208810 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/208810 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0152/0208810/ FTP Any FTP client FTP 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). download dataset NCEI Accession 0208810 v1.1 was published. 2020-02-03T22:20:11Z NCEI Accession 0208810 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0208810/1.1 HTTPS NCEI Accession 0208810 v1.1 published 2020-02-03T22:20:11Z download NCEI Accession 0208810 was revised and v2.2 was published. 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. 2021-01-29T21:59:12Z NCEI Accession 0208810 v2.2 publication https://www.ncei.noaa.gov/archive/accession/0208810/2.2 HTTPS NCEI Accession 0208810 v2.2 published 2021-01-29T21:59:12Z download NCEI Accession 0208810 was revised and v3.3 was published. 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. 2022-01-22T02:17:19Z NCEI Accession 0208810 v3.3 publication https://www.ncei.noaa.gov/archive/accession/0208810/3.3 HTTPS NCEI Accession 0208810 v3.3 published 2022-01-22T02:17:19Z download NCEI Accession 0208810 was revised and v4.4 was published. 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. 2023-01-31T21:33:39Z NCEI Accession 0208810 v4.4 publication https://www.ncei.noaa.gov/archive/accession/0208810/4.4 HTTPS NCEI Accession 0208810 v4.4 published 2023-01-31T21:33:39Z download NCEI Accession 0208810 was revised and v5.5 was published. 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. 2024-01-26T20:09:31Z NCEI Accession 0208810 v5.5 publication https://www.ncei.noaa.gov/archive/accession/0208810/5.5 HTTPS NCEI Accession 0208810 v5.5 published 2024-01-26T20:09:31Z download NCEI Accession 0208810 was revised and v6.6 was published. 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. 2025-01-31T21:30:24Z NCEI Accession 0208810 v6.6 publication https://www.ncei.noaa.gov/archive/accession/0208810/6.6 HTTPS NCEI Accession 0208810 v6.6 published 2025-01-31T21:30:24Z download NCEI Accession 0208810 was revised and v7.7 was published. 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. 2026-01-26T19:35:31Z NCEI Accession 0208810 v7.7 publication https://www.ncei.noaa.gov/archive/accession/0208810/7.7 HTTPS NCEI Accession 0208810 v7.7 published 2026-01-26T19:35:31Z download dataset Parameter or Variable: pCO2 (fCO2) autonomous; Abbreviation: SW pCO2 wet SST; Unit: µatm; Observation type: Measurements from moored buoy with MApCO2 system; Measured or calculated: Calculated from measured CO2 mole fractions (xCO2) and ambient atmospheric pressure.; Sampling instrument: MApCO2 equilibrator; Analyzing instrument: Battelle Seaology (MApCO2) System with LI-COR LI-820; Detailed sampling and analyzing information: All measurements are at sea surface temperature and atmospheric pressure. During the equilibration cycle, a closed loop of air equilibrates with seawater for 10 minutes. Once the equilibration period is complete, the pump stops and the system opens to the atmosphere allowing the pressure to equilibrate with atmospheric pressure. Measurements are recorded for 30 seconds at 2 Hz and then averaged. During the air cycle, fresh air is pumped through the detector for 1 minute. Once the pump stops, the system opens to the atmosphere allowing the pressure to equilibrate with atmospheric pressure. Measurements are recorded for 30 seconds at 2 Hz and then averaged. The gas streams for both the air cycle and equilibrator cycle are partially dried before entering the detector. The values listed as wet xCO2 generally have relative humidity levels ranging from 40 to 80 percent. The humidity levels increase over the course of a deployment. Sampling occurs every 30 minutes. The infrared detector is calibrated at the beginning of every sampling period using a zero and span gas. To calculate the dry measurements, the water mole fraction in the Licor detector is measured using a relative humidity sensor located immediately downstream of the detector.; Standardization technique: Measurements calibrated using onboard zero and span gas with a known concentration of 907 ppm (Praxair, Inc.); Standardization frequency: Every measurement; 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: Sutton, A.J., Sabine, C.L., Maenner-Jones, S., Lawrence-Slavas, N., Meinig, C., Feely, R.A., Mathis, J.T., Musielewicz, S., Bott, R., Mclain, P.D., Fought, H.J., and Kozyr, A. (2014). A high-frequency atmospheric and seawater pCO2 data set from 14 open-ocean sites using a moored autonomous system. Earth System Science Data 6, 353-366.; 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 surface buoy (1 m depth); Analyzing instrument: SBE16plusV2; Detailed sampling and analyzing information: Data captured using a Campbell Scientific data logger onboard the surface buoy; Uncertainty: 0.005°C; Researcher name: Wiley Evans; Researcher institution: Hakai Institute Parameter or Variable: Seawater Salinity; Abbreviation: TSG Salinity; Unit: 1978 Practical Salinity Scale; Observation type: Measurements from surface buoy (1 m depth); Analyzing instrument: SBE16plusV2; Detailed sampling and analyzing information: Data captured using a Campbell Scientific data logger onboard the surface buoy; Uncertainty: 0.0005 S/m; Researcher name: Wiley Evans; Researcher institution: Hakai Institute asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian barometric pressure sensor barometric pressure sensor instrument used to measure the atmospheric pressure. bubble type equilibrator for autonomous carbon dioxide (CO2) measurement bubble type equilibrator for autonomous carbon dioxide (CO2) measurement This type of equilibrators are often used on buoys. Developed by Pacific Marine Environmental Laboratory and Monterey Bay Aquarium Research Institute, the h-shaped bubble equilibrator does not require a water pump to spray water from the top. see Takahashi 1961 for more information. salinometer salinometer generic salinometer use salinometer when the instrument type used is unclear but the data include salinity measurements temperature sensor temperature sensor A sensor used to measure temperature. FIXED PLATFORM OF CANADA FIXED PLATFORM OF CANADA