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| Titel |
Assessment of Iceland as a dust source |
| VerfasserIn |
Ólafur Arnalds, Haraldur Ólafsson, Pavla Dagsson-Waldhauserová |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250130359
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| Publikation (Nr.) |
 EGU/EGU2016-10606.pdf |
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| Zusammenfassung |
| Iceland has extremely active dust sources that result
in large-scale emissions and deposition on land and at
sea. The dust has a volcanogenic origin of basaltic composition
with about 10% Fe content. We used two independent
methods to quantify dust emission from Iceland and dust deposition
at sea. Firstly, the aerial extent (map) of deposition
on land was extended to ocean areas around Iceland. Secondly,
surveys of the number of dust events over the past
decades and calculations of emissions and sea deposition
for the dust storms were made. The results show that total
emissions range from 30.5 (dust-event-based calculation) to
40.1 million t yr |
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