http://swrc.ontoware.org/ontology#Article Upper Atmospheric Soundings in Ice Base Cape Baranova during the YOPP Special Observing Period en Upper Atmospheric Sounding Data Twice daily upper atmospheric sounding observation was conducted at research station Ice Base Cape Baranova during the Year Of Polar Prediction (YOPP) Special Observing Periods (SOPs) of 2018 as a part of Polar Prediction Project (PPP) . This station is noteworthy as it is one of the representative observation stations within the Arctic Sea. During the two SOPs, a total of 286 soundings were made (113 in late winter and 173 in summer). Data is formatted into a NOAA NCEI compliant NetCDF format in accordance to the YOPP data portal guidelines. Polar Data Journal 4 55-60 2020-04 National Institute of Polar Research 2432-6771 CC-BY (from 2020/4 to 2025/12) CC-BY-NC-ND (from 2026/1) https://doi.org/10.17592/001.2019110701|Original Data Atmospheric science/Climatology