https://doi.pangaea.de/10.1594/PANGAEA.995281van Delden, LonaLonavan DeldenAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, PotsdamHöse, AnnaAnnaHöseAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, PotsdamJentzsch, KatharinaKatharinaJentzsch0000-0003-3163-4172Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, PotsdamAarhus UniversityTreat, Claire CClaire CTreat0000-0002-1225-8178Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, PotsdamAarhus UniversityPANGAEA2026environmental dataPARSoil Moisturesoil temperatureDATE/TIMERadiation, photosynthetically activeTemperature, technicalTemperature, soilWater content, volumetricWater table depthMultiple investigationsPAR quantum sensors, Kipp & Zonen, PQS1Pt100 temperature sensor, Nokeval, IKES-50-6.0-5MSoil moisture sensors, Delta-T Devices, ML3 ThetaProbeFN-Land_2022_SiikanevaPeatlandAWI Arctic Land ExpeditionThe role of non-growing season processes in the methane and nitrous oxide budgets in pristine northern ecosystems (FluxWIN)2022-01-01T00:00:00/2022-12-31T23:30:00Datasethttps://doi.pangaea.de/10.1594/PANGAEA.993356https://www.picarro.com/g2508_analyzer_datasheet10.5194/bg-11-347-201410.1111/j.1365-2389.2010.01291.x721221 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalThis data set contains measurements of ancillary environmental variables recorded half-hourly at each flux chamber or chamber site. Each chamber had three individual temperature sensors (IKES-50-6.0-5M PT100, Nokeval, Finland) tracking the temperature inside the chamber as well as in 2 cm and 10 cm soil depth. At the bog site, a temperature profile with 5 depths down to 95 cm was established as well. Each microsite uses a soil moisture sensor (ML3-UM-2.1, Delta-T devices Ltd, UK) to track the volumetric water content of the upper 10 cm soil depth. The wet bog microsite was regularly waterlogged and therefore soil moisture was replaced with water table depth (WTD) measurements. Photosynthetically active radiation (PAR) was measured per microsite with sensor PQS1 (Kipp & Zonen, Netherlands). The dry bog and forest microsite PAR both have limited relevance for the individual chamber due to inconsistent shading of the surrounding trees but rather represent PAR for the microsite in general. The environmental data was collected to characterize site conditions and their changes over the year and to identify environmental drivers of CO2, CH4, and N2O fluxes along the moisture gradient.24.196761.8372Siikaneva bog, FinlandEuropean Research Councilhttps://doi.org/10.13039/501100000781851181The role of non-growing season processes in the methane and nitrous oxide budgets in pristine northern ecosystems