Jurányi Zsófia zsofia.juranyi@awi.de Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Weis Lukas lukas.weis@awi.de Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 2026 Aerosol absorption coefficients at seven wavelengths measured at Neumayer station in 2025 dataset https://doi.org/10.1594/PANGAEA.995719 2026-06-29T11:23:40 https://doi.org/10.1594/PANGAEA.987862 We 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. O2A Registry Metadata for spectrophotometer Aethalometer AE33 at current version other Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research hdl:10013/sensor.a29beb05-bbbe-4186-8b90-19d7d140b71f -8.25 -8.25 -70.65 -70.65 -8.25 -70.65 2025-01-01T00:00:00 2026-01-01T00:00:00 42.0 42.0 AWI_AC Atmospheric Chemistry @ AWI https://www.awi.de/en/science/long-term-observations/atmosphere/antarctic-neumayer/air-chemistry.html Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://doi.org/10.13039/501100003207 AWI_ANT_2 Air chemistry observatory Neumayer_SPUSO http://www.awi.de/en/infrastructure/stations/neumayer_station/observatories/air_chemistry_observatory/technical_aspects/ -70.65 -8.25 Dronning Maud Land, Antarctica 42.0 1983-01-01T00:00:00 Neumayer_based Neumayer_based NEUMAYER III https://doi.org/10.17815/jlsrf-2-152 NEUMAYER III https://doi.org/10.17815/jlsrf-2-152 Air chemistry observatory SPUSO atmospheric gas analysers http://vocab.nerc.ac.uk/collection/L05/current/382/ Chemical property sensors 69226 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ 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. DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Jurányi Zsófia zsofia.juranyi@awi.de start Date/Time (start) DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Jurányi Zsófia zsofia.juranyi@awi.de end Date/Time (end) Duration Duration h duration http://purl.obolibrary.org/obo/PATO_0001309 Time T http://dbpedia.org/resource/Time Jurányi Zsófia zsofia.juranyi@awi.de Duration [h] Aerosol absorption at 370 nm abs(370) 1/Mm Inverse Length Aethalometer, AE33, Magee Scientific Magee Scientific AE33 Aethalometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL1852/ Jurányi Zsófia zsofia.juranyi@awi.de abs(370) [1/Mm] Aerosol absorption at 470 nm abs(470) 1/Mm Inverse Length Aethalometer, AE33, Magee Scientific Magee Scientific AE33 Aethalometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL1852/ Jurányi Zsófia zsofia.juranyi@awi.de abs(470) [1/Mm] Aerosol absorption at 520 nm abs(520) 1/Mm Inverse Length Aethalometer, AE33, Magee Scientific Magee Scientific AE33 Aethalometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL1852/ Jurányi Zsófia zsofia.juranyi@awi.de abs(520) [1/Mm] Aerosol absorption at 590 nm abs(590) 1/Mm Inverse Length Aethalometer, AE33, Magee Scientific Magee Scientific AE33 Aethalometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL1852/ Jurányi Zsófia zsofia.juranyi@awi.de abs(590) [1/Mm] Aerosol absorption at 660 nm abs(660) 1/Mm Inverse Length Aethalometer, AE33, Magee Scientific Magee Scientific AE33 Aethalometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL1852/ Jurányi Zsófia zsofia.juranyi@awi.de abs(660) [1/Mm] Aerosol absorption at 880 nm abs(880) 1/Mm Inverse Length Aethalometer, AE33, Magee Scientific Magee Scientific AE33 Aethalometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL1852/ Jurányi Zsófia zsofia.juranyi@awi.de abs(880) [1/Mm] Aerosol absorption at 950 nm abs(950) 1/Mm Inverse Length Aethalometer, AE33, Magee Scientific Magee Scientific AE33 Aethalometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL1852/ Jurányi Zsófia zsofia.juranyi@awi.de abs(950) [1/Mm] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable author104825 author117680 author68456 award4463 basis5304 campaign25457 campaign3394411 curlevel30 event2245980 funder32 geocode1599 geocode1600 geocode1601 geocode8128 inst32 license21 method10711 method14263 param173310 param46445 param508772 param508773 param508774 param508775 param508776 param508777 pi68456 project4041 ref136447 term1080072 term21330 term2299429 term2802641 term43854 term43975 term67625