Jurányi, Zsófia; Weis, Lukas (2026): Aerosol absorption coefficients at seven wavelengths measured at Neumayer station in 2025 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.995719, In: Jurányi, Zsófia; Weller, Rolf (2025): Aerosol absorption coefficients at seven wavelengths measured at Neumayer station (2019 et seq) [dataset publication series]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.987862
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Published: 2026-06-29 • DOI registered: 2026-07-28
Abstract:
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.
Additional metadata:
O2A Registry: Metadata for spectrophotometer Aethalometer AE33 at current version. Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, hdl:10013/sensor.a29beb05-bbbe-4186-8b90-19d7d140b71f
Project(s):
Atmospheric Chemistry @ AWI (AWI_AC)
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_ANT_2: Air chemistry observatory
Coverage:
Latitude: -70.650000 * Longitude: -8.250000
Date/Time Start: 2025-01-01T00:00:00 * Date/Time End: 2026-01-01T00:00:00
Minimum Elevation: 42.0 m * Maximum Elevation: 42.0 m
Event(s):
Neumayer_SPUSO * Latitude: -70.650000 * Longitude: -8.250000 * Date/Time: 1983-01-01T00:00:00 * Elevation: 42.0 m * Location: Dronning Maud Land, Antarctica * Campaign: Neumayer_based * Basis: NEUMAYER III * Method/Device: Air chemistry observatory (SPUSO)
Comment:
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.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Jurányi, Zsófia | Geocode – start | ||
| 2 | DATE/TIME | Date/Time | Jurányi, Zsófia | Geocode – end | ||
| 3 | Duration | Duration | h | Jurányi, Zsófia | ||
| 4 | Aerosol absorption at 370 nm | abs(370) | 1/Mm | Jurányi, Zsófia | Aethalometer, AE33, Magee Scientific | |
| 5 | Aerosol absorption at 470 nm | abs(470) | 1/Mm | Jurányi, Zsófia | Aethalometer, AE33, Magee Scientific | |
| 6 | Aerosol absorption at 520 nm | abs(520) | 1/Mm | Jurányi, Zsófia | Aethalometer, AE33, Magee Scientific | |
| 7 | Aerosol absorption at 590 nm | abs(590) | 1/Mm | Jurányi, Zsófia | Aethalometer, AE33, Magee Scientific | |
| 8 | Aerosol absorption at 660 nm | abs(660) | 1/Mm | Jurányi, Zsófia | Aethalometer, AE33, Magee Scientific | |
| 9 | Aerosol absorption at 880 nm | abs(880) | 1/Mm | Jurányi, Zsófia | Aethalometer, AE33, Magee Scientific | |
| 10 | Aerosol absorption at 950 nm | abs(950) | 1/Mm | Jurányi, Zsófia | Aethalometer, AE33, Magee Scientific |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
69226 data points
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