Birgit Wild, Nicholas E. Ray, Céline Lett, Amelia J. Davies, Elena Kirillova, Henry Holmstrand, Elizaveta Klevantceva, Alexander Osadchiev, Ivan Gangnus, Evgeniy Yakushev, Denis Kosmach, Oleg Dudarev, Örjan Gustafsson, Igor Semiletov, Volker Brüchert
This dataset includes observational data related to nitrous oxide (N₂O) in the Kara, Laptev and East Siberian Sea, generated during the ISSS-2020 expedition in fall 2020 and the SWERUS-C3 expedition in summer 2014.
The dataset includes (a) concentrations of N₂O and different dissolved nitrogen forms, as well as basic properties across the water column, (b) sea-air N₂O fluxes and parameters used for calculation, and (c) N₂O and O₂ fluxes observed during incubation of intact sediment cores, and separately in water-only controls.
The data were collected for the purpose of studying N₂O dynamics and the impact of land-derived nitrogen in the study region.
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Citation
Birgit Wild, Nicholas E. Ray, Céline Lett, Amelia J. Davies, Elena Kirillova, Henry Holmstrand, Elizaveta Klevantceva, Alexander Osadchiev, Ivan Gangnus, Evgeniy Yakushev, Denis Kosmach, Oleg Dudarev, Örjan Gustafsson, Igor Semiletov, Volker Brüchert (2023) Nitrous oxide data collected in the Siberian Arctic Ocean in summer 2014 and autumn 2020. Dataset version 1. Bolin Centre Database. https://doi.org/10.17043/wild-2023-nitrous-oxide-1
References
Wild B, Ray NE, Lett C, Davies AJ, Kirillova E, Holmstrand H, Klevantceva E, Osadchiev A, Gangnus I, Yakushev E, Kosmach D, Dudarev O, Gustafsson Ö, Semiletov I, Brüchert V (2023) Nitrous oxide dynamics in the Siberian Arctic Ocean and vulnerability to climate change. Journal of Geophysical Research: Biogeosciences 128, e2022JG007326. https://doi.org/10.1029/2022JG007326
Data description
The dataset includes three comma-separated values (csv) files (character set: Western Europe, ISO-8859-15/EURO) with the following content:
wild-N2O-water-column.csv: Data on parameters measured in the water column, temperature, salinity, turbidity, coloured dissolved organic matter (CDOM), chlorophyll A, dissolved organic nitrogen (DON), NH₄⁺, NO₂⁻, NO₃⁻ and N₂O, as well as station coordinates, sampling date, bottom depth, and depth of the water column sample.wild-N2O-fluxes.csv: Calculated sea-air N₂O fluxes, as well as wind speed and N₂O saturation. wild-N2O-incubation.csv: Sediment-water N₂O and O₂ fluxes measured during incubation of intact sediment cores with overlying bottom water, as well as in the corresponding water-only controls.
Control rates have been subtracted from the sediment fluxes reported here.
Samples from the ISSS-2020 and SWERUS-C3 expeditions, as well as from Niskin flasks and seawater intake are indicated. Incubations are all from ISSS-2020.
The following flags are used when numeric values are not given:
- b.d. - below detection limit
- n.a. - not analyzed
Comments
The ISSS-2020 (International Siberian Shelf Studies-2020) expedition was carried out during the autumn of 2020 in the Arctic Ocean on board the Russian R/V Akademik Keldysh.
The SWERUS-C3 (Swedish – Russian – US Arctic Ocean Investigation of Climate-Cryosphere-Carbon Interactions) expedition was carried out during the summer of 2014 in the Arctic Ocean with the Swedish icebreaker Oden serving as the research platform.