[{"name":"oden-sas-2021-ch4-co2-flux-1","title":"Air-sea fluxes and concentrations of methane and carbon dioxide from expedition SAS, Arctic Ocean, 2021","summary":"Air-sea fluxes of methane and carbon dioxide were measured directly using floating chamber methods, as well as atmopsheric and dissolved gas concentrations and supporting meteorological measurements.\r\n\r\n\r\nMeasurements were made from the Swedish icebreaker Oden during the expedition SAS (Synoptic Arctic Survey), covering a large area including parts of Amundsen Basin, Nansen Basin, the North Pole, Lomonosov Ridge, Morris Jesup Rise and the Yermak Plateau. The floating chambers were deployed in sea ice leads from ice edges as well as from Oden. Chamber gas concentration changes were analysed using an online cavity enhanced spectrometer. Dissolved gas concentrations were derived using multiple methods. Measurements were made between August 1 and September 11, 2021.","citations":"Prytherch J, Murto S, Brown I, Ulfsbo A, Thornton BF, Br\u00fcchert V, Tjernstr\u00f6m M, Hermansson AL, Nylund AT, Holthusen LA (2024) Central Arctic Ocean surface\u2013atmosphere exchange of CO2 and CH4 constrained by direct measurements. Biogeosciences 21:671\u2013688. https:\/\/doi.org\/10.5194\/bg-21-671-2024","comments":"##### Data publisher\r\n\r\nThe dataset is published at figshare under the [CC BY 4.0 license](https:\/\/creativecommons.org\/licenses\/by\/4.0\/).\r\n\r\n\r\n##### The expedition\r\n\r\nThe data were collected in summer 2021 from Swedish icebreaker Oden during the Synoptic Arctic Survey (SAS) 2021 expedition organized by the [Swedish Polar Research Secretariat](https:\/\/www.polar.se\/en\/expeditions\/previous-expeditions\/arctic\/synoptic-arctic-survey-2021\/).","category":"Atmosphere","subcategory":"Arctic carbon","keywords":"Gas flux; Air-sea interaction; Gas transfer velocity; Air-sea flux; Carbon dioxide; CO2; Methane; CH4; Sea ice; Arctic; Arctic Ocean; Synoptic Arctic Survey; SAS 2021 expedition; Icebreaker Oden","scientist":"John Prytherch, Sonja Murto, Ian Brown, Adam Ulfsbo, Brett Thornton, Volker Br\u00fcchert, Michael Tjernstr\u00f6m, Anna Hermansson, Amanda Nylund, Lina Holthusen","firstname":"John","lastname":"Prytherch","address":"Department of Meteorology; Stockholm University","postalcode":"SE-106 91","city":"Stockholm","province":"","country":"Sweden","parameters":"Earth science > Atmosphere","location":"Ocean > Arctic Ocean","progress":"","language":"English","project":"Synoptic Arctic Survey (SAS) 2021 expedition. These data are part of the Arctic Climate Across Scales (ACAS) project, funded by the Knut and Alice Wallenberg Foundation (grant no. 2016-0024). Project PI Michael Tjernstr\u00f6m (MISU).","publisher":"figshare","version":"1","constrains":"","access":""}]