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| Titel |
Radiocarbon based source apportionment of black carbon in the form of PM10 elemental carbon aerosol particles at the Zeppelin Observatory, Svalbard |
| VerfasserIn |
Patrik Winiger, August Andersson, Karl Espen Yttri, Peter Tunved, Örjan Gustafsson |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250113471
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| Publikation (Nr.) |
 EGU/EGU2015-13678.pdf |
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| Zusammenfassung |
| Black carbon (BC) aerosol particles are formed from incomplete combustion of fossil fuel
and biomass. Transported into the Arctic, they potentially contributes to climate warming.
However, there are still large uncertainties related to the climate effects of BC,
including aspects of radiative properties, mixing state of the particles, transport,
atmospheric lifetime and sources. The current study aims to reduce source uncertainties
by applying a top-down (observational) source-diagnostic isotope approach and
comparing these to bottom-up (modeling) emission inventories to better constrain
the source types and source regions. The use of natural abundance radiocarbon
(δ14C) is a powerful tool to distinguish between fossil (void of 14C) and biomass
(contemporary 14C) combustion sources. Due to the well-defined end-members,
14C-measurements (alone) provide high precision ( |
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