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| Titel |
Effusive Eruption Modelling project: Assessing UK impacts of trace species and sulphur deposition |
| VerfasserIn |
Christine Braban, Massimo Vieno, John Kentisbeer, Jane Hall, Ed Rowe, Bill Bealey, Elin Roberts, Sue Loughlin, Evgenia Ilyinskaya, Claire Witham |
| 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 |
250113704
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| Publikation (Nr.) |
 EGU/EGU2015-13923.pdf |
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| Zusammenfassung |
| The Effusive Eruption Modelling project undertook to determine the extent to which sulphur
dioxide and sulphate aerosol might be hazardous at ground and flight levels during a future
eruption scenario based on a Laki-type eruption. In order to do this the model source term
was constructed and comprised five weeks of daily emissions followed by one week of no
emissions. In order to sample different meteorology, the 6-week model source term is
repeated eighty times over 10 years of meteorology. The scenario was run using both the
NAME model, and the EME4UK model. Detailed results are presented in Witham et al. This
presentation reports the results of an assessment of UK impacts of trace species and sulphur
deposition.
A limited literature survey was carried out and conservative initial ratios of
HCl, HF and H2S with respect to SO2 were selected. HCl emissions of the same
magnitude as SO2, modelled in EMEP4UK as a soluble species with the same
properties as nitric acid, Xsol, resulted in average hourly concentrations at the UK
surface of mostly |
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