Weller, Rolf; Legrand, Michel (2021): Ionic composition of Antarctic aerosol at Neumayer station (2011-2019) [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.931366
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Abstract:
Year-round records of the ionic composition of Antarctic aerosol were obtained at the inland Dome C (DC) and coastal Neumayer (NM) sites, with additional observations of black carbon at NM. Discussions focus on the origin of ammonium in Antarctica. This first Antarctic atmospheric study of several species emitted by biomass burning indicates that black carbon, oxalate, and fine potassium reach a maximum in October in relation to biomass burning activity in the southern hemisphere. Ammonium reaches a maximum two months later, suggesting that biomass burning remains a minor ammonium source there. The ammonium maximum in December coincides with the occurrence of diatom blooms in the austral ocean, suggesting that oceanic ammonia emissions are the main source of ammonium in Antarctica. The ammonium to sulfur-derived biogenic species molar ratio of 0.15 in summer suggests far lower ammonia emissions from the polar ocean than mid-latitude southern oceans.
Related to:
Legrand, Michel; Weller, Rolf; Preunkert, Suzanne; Jourdain, Bruno (2021): Ammonium in Antarctic Aerosol: Marine Biological Activity Versus Long‐Range Transport of Biomass Burning. Geophysical Research Letters, 48(11), https://doi.org/10.1029/2021GL092826
Coverage:
Latitude: -70.650000 * Longitude: -8.250000
Date/Time Start: 2011-01-01T00:00:00 * Date/Time End: 2019-01-14T00:00:00
Minimum HEIGHT above ground: 7 m * Maximum HEIGHT above ground: 7 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)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | HEIGHT above ground | Height | m | Weller, Rolf | Geocode | |
| 2 | DATE/TIME | Date/Time | Weller, Rolf | Geocode – start | ||
| 3 | DATE/TIME | Date/Time | Weller, Rolf | Geocode – end | ||
| 4 | Duration | Duration | h | Weller, Rolf | ||
| 5 | Oxalate | [C2O4]2- | ng/m3 | Weller, Rolf | Ion chromatography | |
| 6 | Black carbon, aerosol | Aerosol BC | ng/m3 | Weller, Rolf | Ion chromatography | |
| 7 | Ammonium | [NH4]+ | ng/m3 | Weller, Rolf | Ion chromatography | |
| 8 | Sulfate, non-sea-salt | nssSO4 | ng/m3 | Weller, Rolf | Ion chromatography | |
| 9 | Methane sulfonic acid | MSA | ng/m3 | Weller, Rolf | Ion chromatography | |
| 10 | Ratio | Ratio | Weller, Rolf | Ion chromatography | NH4/(NssSO4+MSA) [molar ratio] |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
2905 data points
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