All datasets produced and/or used in this study are available here, together with their DOI if applicable.
Sodankylä FTIR raw data (hdf file):
Kivi, R., Vigouroux, C., Langerock, B., & Bjorklund, R. (2026). FTIR ozone (O3) groundbased remote sensing at Sodankylä from HR125 FTS FMI instrument (Version 1) [Data set]. Royal Belgian Institute for Space Aeronomy. https://doi.org/10.18758/TZWR7TR6
Proxies used in the Multiple Linear Regression:
Taken from the OREGANO project webpage:
- Solar cycle: Bremen composite Mg II index mgii_index_monthly_mean_1979_2024.txt
- Quasi-Biennal Oscillation (QBO): Principal components zonal mean wind 6◦S−6◦N (ERA5) qbo_era5_PC_1979-2024.txt (PC1 and PC2)
- El-Niño Southern Oscillation (ENSO): Multivariate ENSO Index (MEI) enso34_m.txt
- AO: Arctic Oscillation Index (accumulated) ao_m__accumulated_weighted_sbuvformat.txt
- Brewer-Dobson Circulation (BDC): Eliassen-Palm (EP) Flux at 100hPa (accumulated) ehfn_m_era5_100hPa_accumulated_weighted_sbuvformat.txt
Others:
- VPSC: Volume of Polar Stratospheric Cloud: Thölix, L. (2026). The Volume of Polar Stratospheric Clouds (VPSC) [Data set]. Finnish Meteorological Institute. https://doi.org/10.57707/fmi-b2share.f24fx-8xk03
- TP: Tropopause Pressure at each station location (ERA5) NCEP_Reanalysis_Tropopause_Pressure_Monthly
- EL: Local Equivalent Latitude averaged over the corresponding column (ERA5) and
- T: Local Temperature averaged over the corresponding column (ERA5) : EL and T timeseries are produced from ERA5 by Quentin Errera and are available upon request to
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Merged anomalies:
Jonas, C., & Vigouroux, C. (2026). Regional weighted means of groundbased ozone (O3) anomalies timeseries in the Arctic, 2000-2024 (Version 1) [Data set]. Royal Belgian Institute for Space Aeronomy. https://doi.org/10.18758/74Y0X62Y
