Not logged in
Data Publisher for Earth & Environmental Science

Izett, Robert; Schuler, Kate; Tortell, Philippe Daniel (2021): Underway surface O2/Ar, O2 and N2 observations from the Subarctic Northeast Pacific. PANGAEA,

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

This archive contains underway, surface seawater observations of ΔO2/Ar, oxygen (O2) and nitrogen (N2), and ancillary properties from the Subarctic Northeast Pacific and Gulf of Alaska. These data enable approximations of mixed layer net community production, derived from the biological O2 saturation anomaly (ΔO2/Ar and ΔO2/N2). Gas and hydrographic observations were obtained from a continuous seawater supply using autonomous ship-based instrumentation deployed on periodic Line P and La Perouse oceanographic monitoring cruises, and various other cruises between 2007 and 2019. Measurements of mixed layer ΔO2/Ar, and O2 saturation state and concentration were obtained using a membrane inlet mass spectrometer (MIMS) system and oxygen optode, respectively. Oxygen data were calibrated against discrete samples analyzed by Winkler titration. Mixed layer nitrogen saturation state was derived from observations of seawater gas tension obtained using a gas tension device (GTD) and O2 from the optode. The time and location (latitude and longitude) of underway sampling, and ancillary hydrographic data (sea surface temperature and salinity) measured using a thermosalinograph are also included in the repository. Data are provided and compiled by the Tortell laboratory of the University of British Columbia, Vancouver, Canada. Underway hydrographic data were provided by the Institute of Ocean Sciences (DFO Canada) and are replicated here. A list of publications featuring these data is provided with the repository.
argon; gas tension device; membrane inlet mass spectrometry; Net community production; nitrogen; O2; O2/Ar; optode; oxgyen; Pacific Ocean; ship-based; underway CTD
Related to:
Burt, William J; Westberry, Toby K; Behrenfeld, Michael J; Zeng, Chen; Izett, Robert; Tortell, Philippe Daniel (2018): Carbon : Chlorophyll ratios and net primary productivity of Subarctic Pacific surface waters derived from autonomous shipboard sensors. Global Biogeochemical Cycles,
Izett, Robert; Hamme, Roberta C; McNeil, Craig; Manning, Cara C; Bourbonnais, Annie; Tortell, Philippe Daniel (accepted): ΔO2/N2' as a new tracer of marine net community production: Application and evaluation in the Subarctic Northeast Pacific and Canadian Arctic Ocean. Frontiers in Marine Science
Izett, Robert; Manning, Cara C; Hamme, Roberta C; Tortell, Philippe Daniel (2018): Refined Estimates of Net Community Production in the Subarctic Northeast Pacific Derived From ΔO2/Ar Measurements With N2O-Based Corrections for Vertical Mixing. Global Biogeochemical Cycles, 32(3), 326-350,
Izett, Robert; Tortell, Philippe Daniel (2020): The Pressure of In Situ Gases Instrument (PIGI) for Autonomous Shipboard Measurement of Dissolved O2 and N2 in Surface Ocean Waters. Oceanography, 33(2),
Rosengard, Sarah Z; Izett, Robert; Burt, William J; Schuback, Nina; Tortell, Philippe Daniel (2020): Decoupling of ΔO2/Ar and particulate organic carbon dynamics in nearshore surface ocean waters. Biogeosciences, 17(12), 3277-3298,
Tortell, Philippe Daniel (2005): Dissolved gas measurements in oceanic waters made by membrane inlet mass spectrometry. Limnology and Oceanography-Methods, 3(1), 24-37,
Tortell, Philippe Daniel; Merzouk, Anissa; Ianson, Debby; Pawlowicz, Rich; Yelland, Doug R (2012): Influence of regional climate forcing on surface water pCO2, ΔO2/Ar and dimethylsulfide (DMS) along the southern British Columbia coast. Continental Shelf Research, 47, 119-132,
Latitude: 49.000000 * Longitude: -128.000000
Subarctic_Northeast_Pacific * Latitude: 49.000000 * Longitude: -128.000000 * Method/Device: Multiple investigations (MULT)
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Binary ObjectBinaryIzett, Robert
Curation Level: Basic curation (CurationLevelB)
41 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML