Surface water CO2 parameters collected by Alaskan citizens around the northern Gulf of Alaska from April 2015 to August 2017. Version 1.0.

pCO2 and TCO2 measurements were made on surface seawater collected by tribal citizens and non-oceanographic agencies around Kenai Peninsula in the northern Gulf of Alaska from 2015 to 2017. Seawater was collected using bucket grabs or Niskin bottles and drawn into 350 mL amber glass bottles. Sample bottles were rinsed 3 times and then carefully filled with sample seawater as to not introduce bubbles into the sample. Sample temperature was then recorded using NIST traceable thermometers (VWR PN 23609-176) and fixed with 40 µL of mercuric chloride before being crimp-sealed using polyethylene-lined metal caps. Finally, temperature and salinity were determined at the time of sample analysis at the Alutiiq Pride Shellfish Hatchery (APSH) using NIST traceable thermometers and a YSI MultiLab 4010-1 with a MultiLab IS 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). CO2 system parameters (pHT, pCO2, aragonite saturation) were computed using the carbonate acid dissociation constants of Lueker et al. (2000). Note alkalinity (Alk) is assumed 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 and coastal processes around the Gulf of Alaska 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

Citation

Keywords

Dataset extent

Map data © OpenStreetMap contributors

Metadata Reference Date(s) January 13, 2022 (Revision)
January 24, 2022 (Publication)
Dataset Reference Date(s) April 05, 2015 (Creation)
November 19, 2018 (Publication)
Frequency of Update As Needed

Responsible Party 1
Name
Carrie Weekes
Affiliation
Hakai Institute
Email
carrie.weekes@hakai.org
Role
Author
Responsible Party 2
Name
Wiley Evans
Affiliation
Hakai Institute
Email
wiley.evans@hakai.org
Role
  • Custodian
  • Owner
  • Point of Contact
  • Processor
Responsible Party 3
Affiliation
Hakai Institute
Email
data@hakai.org
Role
  • Distributor
  • Resource Provider
Responsible Party 4
Name
J. Ramsey
Role
Author
Responsible Party 5
Name
J. Hetrick
Role
Author

Field Value
Ocean Variables
  • Dissolved Organic Carbon
  • Other
Scope Dataset
Status On Going
Topic Category oceans
Maintenance Note Generated from https://cioos-siooc.github.io/metadata-entry-form
Spatial Extent { "coordinates": [ [ [ -153.45020164, 58.42955383 ], [ -145.36907065, 58.42955383 ], [ -145.36907065, 61.89059635 ], [ -153.45020164, 61.89059635 ], [ -153.45020164, 58.42955383 ] ] ], "type": "Polygon" }
North Bounding Latitude 61.89059635
South Bounding Latitude 58.42955383
East Bounding Longitude -145.36907065
West Bounding Longitude -153.45020164
Temporal Extent
Begin
2015-04-05
End
2017-08-19
Vertical Extent
Min
0.0
Max
0.0
Default Locale English
Citation identifier
Code
10.21966/1.715793