https://doi.pangaea.de/10.1594/PANGAEA.995757Jurányi, ZsófiaZsófiaJurányiAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenWeis, LukasLukasWeisAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenPANGAEA2026aerosolAntarcticaNeumayer StationSpusosurface ozoneDATE/TIMETemperature, airWind speedWind directionAerosol scattering coefficient at 450 nmAerosol scattering coefficient at 550 nmAerosol scattering coefficient at 700 nmAerosol backscattering coefficient at 450 nmAerosol backscattering coefficient at 550 nmAerosol backscattering coefficient at 700 nmParticle numberOzoneContamination flagAir chemistry observatoryNephelometer TSI 3563Condensation particle counter (CPC), TSI, 3775Surface ozone analyzer ansyco O341MDerived from wind speed and wind direction data and manually from logbooks stating traffic in the vicinity of the observatoryNeumayer_basedNEUMAYER IIIAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhavenhttps://ror.org/032e6b9422025-01-01T00:00:00/2025-12-31T23:59:00Dataset10.1594/PANGAEA.9612355731348 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalThe main task of the Neumayer Aerosol and Trace Gas (former Air Chemistry) Observatory at Neumayer III Station is to provide continuous, year-round as well as long-term data records for important gaseous and particulate trace components of the troposphere. The data set reports on long term atmospheric observations (aerosol scattering and back scattering coefficient, surface ozone, and aerosol particle number concentration) at the Air Chemistry Observatory (Neumayer III, Antarctica) between 1 January 2025 and 31 December 2025, measured about 5-7 m above ground with 60 sec resolution. For additional information about the observatory visit homepage: https://www.awi.de/en/science/long-term-observations/atmosphere/antarctic-neumayer/air-chemistry.html-8.25-70.65Dronning Maud Land, AntarcticaAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhavenhttps://doi.org/10.13039/501100003207AWI_ANT_2Air chemistry observatory