Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 University of British Columbia UBC https://www.ubc.ca/ https://ror.org/03rmrcq20 Tortell Philippe Daniel ptortell@eoas.ubc.ca 0000-0003-0212-2151 University of British Columbia UBC https://www.ubc.ca/ https://ror.org/03rmrcq20 Else Brent G T belse@ucalgary.ca https://people.ucalgary.ca/~belse/ University of Calgary https://ror.org/03yjb2x39 2026 Underway continuous measurements of surface dissolved methane, nitrous oxide and carbon dioxide in the California Current System May 28 2023 - June 12 2023 dataset https://doi.org/10.1594/PANGAEA.987274 2026-01-06T07:22:49 This is a dataset of continuous dissolved gas measurements made by a laser spectroscopy based gas analyzers coupled to a gas extraction module, and plumbed directly into the seawater supply line of the RV Sally Ride. This data was collected as part of the PUPCYCLE II cruise, which took place in the California Upwelling system (CalUS) (38-44°N, and 121-126°W from May 28, 2023 to June 12, 2023). Underway measurements were calibrated using discrete dissolved gas samples (doi:10.1594/PANGAEA.987238). The goal of the study was to understand controls on the biogeochemical cycling of gases in the CalUS and quantify sea-air fluxes of the gases, particularly the understudied gas of CH4 and N2O. In addition to the dissolved gas measurements, there is also measurements of stable carbon isotopes (del13C) of methane and carbon dioxide, temperature, oxygen, fluorescence and salinity. Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 et al. in review Decoupling temporal and spatial variability of greenhouse gases in a coastal upwelling zone using high frequency ship-board measurements and numerical analysis Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 Tortell Philippe Daniel ptortell@eoas.ubc.ca 0000-0003-0212-2151 2026 Depth profile data of dissolved methane, nitrous oxide and carbon dioxide from the PUPCYCLE II cruise in the California Upwelling System dataset https://doi.org/10.1594/PANGAEA.987238 -125.49280978932899 -123.88817799743902 37.7170313354773 44.4341779332452 -124.54071523384553 41.328622945403744 2023-05-28T21:54:29 2023-06-11T12:39:36 National Science Foundation NSF https://doi.org/10.13039/100000001 OCE-1751805 CAREER: An integrated molecular and physiological approach to examining the dynamics of upwelled phytoplankton in current and changing oceans https://www.nsf.gov/awardsearch/show-award/?AWD_ID=1751805 SR2311_underway_gas 44.08335 -124.4619 2023-05-28T21:54:29 44.43418 -124.3198 2023-06-11T12:39:36 SR2311 SR2311 PUPCYCLE II PUPCYCLE II https://doi.org/10.7284/910048 Newport, Oregon 2023-05-28T00:00:00 2023-05-28 Newport, Oregon 2023-06-11T00:00:00 2023-06-11 Sally Ride https://scripps.ucsd.edu/ships/sally-ride WSAF 9695171 Marchetti, Adrian Marchetti, Adrian Sally Ride https://scripps.ucsd.edu/ships/sally-ride WSAF 9695171 3169101 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 Date/Time LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 Longitude Flow rate flow rate ml/min flow rate http://purl.obolibrary.org/obo/PATO_0001574 Volume per Unit Time Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 Carrier gas flow rate through Gas extraction module flow rate [ml/min] (Carrier gas flow rate through...) Flow rate Flow rate l/min flow rate http://purl.obolibrary.org/obo/PATO_0001574 Volume per Unit Time Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 Seawater flow rate through gas extraction module Flow rate [l/min] (Seawater flow rate through ga...) Methane CH4 ppmv methane http://purl.obolibrary.org/obo/CHEBI_16183 Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 Methane partial pressure in lumen side of membrane, raw CH4 [ppmv] (Methane partial pressure in l...) Nitrogen dioxide NO2 ppmv nitrogen dioxide http://purl.obolibrary.org/obo/CHEBI_33101 Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 N2O partial pressure in lumen side of membrane, raw NO2 [ppmv] (N2O partial pressure in lumen...) Temperature, water Temp °C Temperature Θ http://dbpedia.org/resource/Temperature water http://purl.obolibrary.org/obo/CHEBI_15377 Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 Temp [°C] Salinity Sal salinity http://purl.obolibrary.org/obo/PATO_0085001 Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 PSU Sal (PSU) Fluorescence, raw F raw V fluorescence http://purl.obolibrary.org/obo/PATO_0000018 Energy per Electric Charge Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 F raw [V] Flow rate Flow rate l/min flow rate http://purl.obolibrary.org/obo/PATO_0001574 Volume per Unit Time Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 TSG flow rate Flow rate [l/min] (TSG flow rate) Oxygen, dissolved DO ml/l oxygen O https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25805 dissolved http://purl.obolibrary.org/obo/PATO_0001986 Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 DO [ml/l] Temperature, air TTT °C Temperature Θ http://dbpedia.org/resource/Temperature air Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 TTT [°C] Methane CH4 nmol/l methane http://purl.obolibrary.org/obo/CHEBI_16183 Molar Concentration Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 Calibrated CH4 concentration CH4 [nmol/l] (Calibrated CH4 concentration) Nitrous oxide N2O nmol/l nitrous oxide Molar Concentration Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 Calibrated N2O concentration N2O [nmol/l] (Calibrated N2O concentration) Methane saturation CH4 sat % Dimensionless Ratio ψ Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 CH4 sat [%] Nitrous oxide saturation N2O sat % Dimensionless Ratio ψ Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 N2O sat [%] Methane, deviation from equilibrium dCH4 nmol/l methane http://purl.obolibrary.org/obo/CHEBI_16183 deviation http://purl.obolibrary.org/obo/PATO_0002175 Molar Concentration Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 dCH4 [nmol/l] Nitrous oxide, deviation from equilibrium dN2O nmol/l nitrous oxide deviation http://purl.obolibrary.org/obo/PATO_0002175 Molar Concentration Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 dN2O [nmol/l] Carbon dioxide, partial pressure pCO2 µatm carbon dioxide http://purl.obolibrary.org/obo/CHEBI_16526 partial pressure Energy Density http://dbpedia.org/resource/Energy_density Force Per Area Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 Calibrated pCO2 pCO2 [µatm] (Calibrated pCO2) Methane, equilibrium CH4 eq nmol/l methane http://purl.obolibrary.org/obo/CHEBI_16183 Molar Concentration Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 CH4 eq [nmol/l] Nitrous oxide, equilibrium N2O eq nmol/l nitrous oxide Molar Concentration Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 N2O eq [nmol/l] Carbon dioxide, equilibrium CO2 eq µatm carbon dioxide http://purl.obolibrary.org/obo/CHEBI_16526 Energy Density http://dbpedia.org/resource/Energy_density Force Per Area Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 CO2 eq [µatm] Carbon dioxide, deviation from equilibrium dCO2 µatm carbon dioxide http://purl.obolibrary.org/obo/CHEBI_16526 deviation http://purl.obolibrary.org/obo/PATO_0002175 Energy Density http://dbpedia.org/resource/Energy_density Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 dCO2 [µatm] δ13C, methane δ13C CH4 ‰ PDB δ13C http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes methane http://purl.obolibrary.org/obo/CHEBI_16183 Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 δ13C CH4 [‰ PDB] δ13C, carbon dioxide δ13C CO2 ‰ PDB δ13C http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes carbon dioxide http://purl.obolibrary.org/obo/CHEBI_16526 Schuler Kate kschuler@eoas.ubc.ca 0000-0002-3290-3613 δ13C CO2 [‰ PDB] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable carbon dioxide continuous sampling greenhouse gas fluxes Methane Nitrous oxide Upwelling author27272 author35076 author65481 author82662 award3659 basis5386 campaign3392621 campaign51456 curlevel30 event3335868 funder20211 geocode1599 geocode1600 geocode1601 inst20554 inst21252 license21 param169532 param182308 param2264 param29869 param45098 param4564 param4567 param4610 param501996 param507158 param509032 param513828 param5351 param552262 param552263 param552264 param552265 param552266 param552267 param716 param717 param763 pi82662 ref136281 refds987238 term1073089 term1073194 term1073490 term1073493 term1073620 term1074077 term1074806 term1074818 term2606205 term2698012 term38494 term38847 term40453 term40464 term40646 term43794 term43821 term43826 term43834 term43972 term43975 term43985 term44030 term47444 term47534 term48287 term74681 term75704 term77757