10.1594/PANGAEA.995719Jurányi, ZsófiaZsófiaJurányiAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenWeis, LukasLukasWeisAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenPANGAEA2026DATE/TIMEDurationAerosol absorption at 370 nmAerosol absorption at 470 nmAerosol absorption at 520 nmAerosol absorption at 590 nmAerosol absorption at 660 nmAerosol absorption at 880 nmAerosol absorption at 950 nmAir chemistry observatoryAethalometer, AE33, Magee ScientificNeumayer_basedNEUMAYER IIIAtmospheric Chemistry @ AWI (AWI_AC)2025-01-01T00:00:00/2026-01-01T00:00:00Dataset10.1594/PANGAEA.98786210013/sensor.a29beb05-bbbe-4186-8b90-19d7d140b71f69226 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalWe operate a 7-wavelength aethalometer (Model AE33, Magee Scientific) since 2019 in the Aerosol and Trace Gas Observatory at Neumayer III Station in Antarctica. The aethalometer model AE33 collects aerosol particles continuously by drawing the aerosol-laden air stream through a spot on the filter tape. It analyzes the aerosol by measuring the transmission of light through one portion of the filter tape containing the sample, versus the transmission through an unloaded portion of the filter tape acting as a reference area. This analysis is done at seven optical wavelengths spanning the range from the near-infrared to the near-ultraviolet. The aethalometer calculates the instantaneous concentration of optically-absorbing aerosols from the rate of change of the attenuation of light transmitted through the particle-laden filter. The intake of the aerosol inlet can be found on top of the observatory at approx. 5-7 m above ground.Important notice: the absorption coefficients are extremely low at Neumayer, typically lower than the instrumental noise level. Therefore even among the one-hour averages negative values are present.-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