Ash generation and distribution from the April-May 2010 eruption of Eyjafjallajökull, Iceland.
Sci Rep
; 2: 572, 2012.
Article
em En
| MEDLINE
| ID: mdl-22893851
ABSTRACT
The 39-day long eruption at the summit of Eyjafjallajökull volcano in April-May 2010 was of modest size but ash was widely dispersed. By combining data from ground surveys and remote sensing we show that the erupted material was 4.8±1.2·10¹¹â
kg (benmoreite and trachyte, dense rock equivalent volume 0.18±0.05â
km³). About 20% was lava and water-transported tephra, 80% was airborne tephra (bulk volume 0.27â
km³) transported by 3-10â
km high plumes. The airborne tephra was mostly fine ash (diameter <1000 µm). At least 7·10¹°â
kg (70â
Tg) was very fine ash (<28 µm), several times more than previously estimated via satellite retrievals. About 50% of the tephra fell in Iceland with the remainder carried towards south and east, detected over ~7 million km² in Europe and the North Atlantic. Of order 10¹°â
kg (2%) are considered to have been transported longer than 600-700â
km with <108â
kg (<0.02%) reaching mainland Europe.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Erupções Vulcânicas
País/Região como assunto:
Europa
Idioma:
En
Revista:
Sci Rep
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Islândia