Water column carbonate system measurements from the Pacific Salmon Foundation Citizen Science Program stations from July 2016 to October 2017 in the northern Salish Sea, British Columbia, Canada


pCO2 and TCO2 measurements were made on seawater collected from 2 depths at up to 10 stations from the Baynes Sound, Lund and Powell River patrols of the Pacific Salmon Foundation’s Citizen Science Program, approximately every 2 to 3 weeks from July 2016 to October 2016 and from March 2017 to October 2017. Seawater was collected in General Oceanics niskin bottles at 0 and 20 m depths using a calibrated line meter on the sampling vessel. Seawater temperature was determined at the time of sample collection with NIST-traceable thermometers (VWR PN 23609-176). Seawater samples were preserved with mercuric chloride immediately upon sample collection. Laboratory temperature and seawater salinity were determined at the time of sample analysis at the Quadra Island Field Station (QIFS) using NIST traceable thermometers and a YSI MultiLab 4010-1 with a MultiLab IDS 4310 conductivity and temperature probe. The YSI probe was calibrated using certified reference materials of known salinity prior to seawater sample analysis. For detailed protocols on sample collection, data processing including CO2 system determination, and quality assurance, please see Pocock et al. (2017; http://dx.doi.org/10.21966/1.521066). Note alkalinity (Alk) here is assumed here to consist of carbonate, bicarbonate, borate, hydroxide, and hydrogen ions; neglecting the influence of nutrients and organic acids. 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.

Access and Use

Licence: Creative Commons Attribution 4.0
Limitations: Appropriate credit must be given to Hakai Institute and the authors of the dataset.

Data and Resources



Dataset extent

Map data © OpenStreetMap contributors

Metadata Reference Date(s) January 13, 2022 (Revision)
January 24, 2022 (Publication)
Data Reference Date(s) August 07, 2018 (Publication)
Frequency of Update As Needed

Responsible Party 1
Alex Hare
Hakai Institute
  • Custodian
  • Owner
  • Point of Contact
Responsible Party 2
Hakai Institute
  • Distributor
  • Resource Provider

Field Value
Ocean Variables
  • Dissolved Organic Carbon
  • Other
Scope Dataset
Status Completed
Topic Category oceans
Maintenance Note Generated from https://cioos-siooc.github.io/metadata-entry-form
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North Bounding Latitude 50.10196506
South Bounding Latitude 49.4351949
East Bounding Longitude -124.37299598
West Bounding Longitude -125.35968411
Vertical Extent
Default Locale English
Citation identifier