• Canada
• Research dataclose
• 2018-2022close
• Natural Sciences and Engineering Research Council of Canada close
• NEANIAS Atmospheric Research Community close

This dataset contains methane and nitrous oxide dissolved gas concentration, dissolved methane carbon isotope, and ancillary hydrographic data from research cruises in the North American Arctic Ocean between 2015-2018. Ocean samples for methane and nitrous oxide analysis were collected from Niskin bottles mounted on a CTD rosette. Water was collected into glass serum bottles and allowed to overflow three times before preserving with mercuric chloride and sealing with with butyl rubber stoppers and aluminum crimp seals. Gas concentrations were determined using a purge and trap system coupled to a gas chromatograph/mass spectrometer, following the method of Capelle et al. (2015). Equilibrium dry atmospheric concentrations were 328.25, 329.14, 330.11, and 330.96 ppb for N2O and 1919.64, 1933.67, 1934.92, and 1933.50 ppb for CH4 in 2015, 2016, 2017, and 2018, respectively. Equilibrium dissolved concentrations were calculated from the measured temperature and salinity following Wiesenburg and Guinasso (1979) for CH4 and Weiss and Price (1980) for N2O. Equilibrium concentrations were calculated based on sample temperature and salinity and the atmospheric N2O or CH4 concentrations measured at Barrow, Alaska by the NOAA Earth System Research Laboratory Global Monitoring Division (Dlugokencky et al., 2020a,b), with corrections to local sea level pressure and 100% humidity. Oxygen concentration was determined using an oxygen sensor mounted on the Niskin rosette, calibrated with discrete samples analyzed by Winkler titration. The mixed layer depth was defined based on a potential density difference criterion of 0.125 kg/m³ relative to the density at 5 m depth, using CTD profiles binned to 1 m. The mixed layer depth was set to 5 m as a minimum. The instantaneous gas transfer velocities and fluxes are based on the instantaneous wind speed at the time of sampling. The 30-day weighted gas transfer velocities and fluxes are integrated over the residence time of the gas in the mixed layer, using up to the prior 30 days of observations, following the method of Teeter et al. (2018) as described in the main manuscript of Manning et al. (2022). The 60-day weighted gas transfer velocities and fluxes are integrated over the residence time of the gas in the mixed layer, using the prior 60 days of observations, following the method of Teeter et al. (2018) as described in the main manuscript of Manning et al. (2022). Atmospheric sea level pressure was obtained from the NCEP/NCAR reanalysis product, which is provided by the NOAA-ESRL Physical Sciences Laboratory (https://psl.noaa.gov/data/gridded). Fractional ice cover was obtained from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (https://osi-saf.eumetsat.int). Sea ice concentration product AMSR-2 (identifier OSI-408) was used in 2017–2018 and SSMIS (identifier OSI-401-b) was used in 2015–2016.

Electronic Supplementary Material including: - Zircon U-Pb/Hf/O analyses of unknowns and calibration+validation material - Supplementary diagrams for data quality check - CL+BSE images of analyzed grains

Table S1. Detrital zircon U-Pb isotopic analyses of sandstones from the Duoni Formation. Table S2. Detrital Cr-spinel geochemical compositions of sandstones from the Duoni Formation.

Additional file 3: Table S1. Microfossil, Mg/Ca, δ18O, and δ13C data from the CbCS.

Appendix A: SLIPs and limiting points included in the eastern Canada Relative Sea Level database. Latitude and Longitude are expresses in decimal degrees: n/a is not applicable; nd is no information available. Appendix B: Optimized hyperparameters employed in the EST-GP spatiotemporal model.

Raw data for the ElSx-5 specimen stable isotope dataset obtained from the Neotoma Paleoecology Database.

Data files for the submitted Icarus paper: "Modeled Small-scale Crack Orientations on Martian Surface Rocks caused by Differential Insolation-Mobilized Water". Data files contain the results of the combination of geometric and radiative transfer models. Data files are for a specific depth, width and length of V-shaped crack (as specified in the filename, where d is the depth, w is the width, and l is the length). These files are for those runs with no diurnal or seasonal restrictions. The files themselves are in the following format: planetary latitude (degrees) \t Solar longitude (degrees) \t crack offset clockwise from north (degrees) \t total energy received by the bottom third of the crack (J). Energy is calculated using the dimensions in meters so these values should be scaled according to the actual dimensions of the crack or can be used as a relative energy for different geometries and orientations (as in the paper).

Raw data for the Delaware vertebrate fauna dataset obtained from the Neotoma Paleoecological Database.

Additional file 1. Raw data including counts of all dinoflagellate cysts and other palynomorphs.

Table S1. Zircon U-Pb dating results of clastic sedimentary rocks from the Huili Group. Table S2. Zircon Lu-Hf isotopic data of clastic sedimentary rocks from the Huili Group.