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)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 03, 2026 at 03:32 AM | Dataset Last Updated: January 26, 2026 at 12:00 AM

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.

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description	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.
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identifier	https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/0208810.xml
issued	2020-01-29T00:00:00.000+00:00
keyword	[ "0208810", "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", "barometric pressure sensor", "bubble type equilibrator for autonomous carbon dioxide (CO2) measurement", "salinometer", "temperature sensor", "chemical", "meteorological", "moored buoy", "physical", "surface measurements", "time series", "FIXED PLATFORM OF CANADA", "Hakai Institute", "Hakai Institute", "Surface Ocean CO2 Atlas (SOCAT)", "Coastal Waters of Southeast Alaska and British Columbia", "North Pacific Ocean", "oceanography", "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", "187F20180501", "187F20201027", "187F20211007", "187F20221129", "187F20231016", "187F20240808", "187F20250626", "Ocean Carbon and Acidification Data System (OCADS) Project", "Moorings and Time Series", "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", "Continuous measurement", "Discrete measurement", "Surface measurement", "SST", "SW pCO2 wet SST", "TSG Salinity", "BAROMETERS > BAROMETERS", "EQUILIBRATORS", "SALINOMETERS", "TEMPERATURE SENSORS > TEMPERATURE SENSORS", "FIXED OBSERVATION STATIONS > FIXED OBSERVATION STATIONS", "OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN", "Central British Columbia coast", "Fitz Hugh Sound", "Kwakshua Channel", "North Pacific Ocean" ]
landingPage	https://www.ncei.noaa.gov/contact
language	[]
license	https://creativecommons.org/publicdomain/zero/1.0/
modified	2026-01-26T00:00:00.000+00:00
publisher	{ "name": "NOAA National Centers for Environmental Information", "@type": "org:Organization" }
references	[ "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Pacific.html", "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system" ]
rights	otherRestrictions
spatial	-127.9697,51.6507,-127.9697,51.6507
temporal	2018-05-01T00:00:00+00:00/2025-11-24T00:00:00+00:00
theme	[ "geospatial" ]
title	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)

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