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| Titel |
Satellite-based detection of volcanic sulphur dioxide from recent eruptions in Central and South America |
| VerfasserIn |
D. Loyola, J. Geffen, P. Valks, T. Erbertseder, M. Roozendael, W. Thomas, W. Zimmer, K. Wißkirchen |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: 2nd EGU Alexander von Humboldt Conference "The role of Geophysics in Natural Disaster Prevention" ; Nr. 14 (2008-01-02), S.35-40 |
| Datensatznummer |
250012080
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| Publikation (Nr.) |
 copernicus.org/adgeo-14-35-2008.pdf |
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| Zusammenfassung |
| Volcanic eruptions can emit large amounts of rock fragments and fine
particles (ash) into the atmosphere, as well as several gases, including
sulphur dioxide (SO2). These ejecta and emissions are a major natural
hazard, not only to the local population, but also to the infrastructure in
the vicinity of volcanoes and to aviation. Here, we describe a methodology
to retrieve quantitative information about volcanic SO2 plumes from
satellite-borne measurements in the UV/Visible spectral range. The
combination of a satellite-based SO2 detection scheme and a
state-of-the-art 3D trajectory model enables us to confirm the volcanic origin of trace gas signals and to estimate the plume height
and the effective emission height. This is demonstrated by case-studies for
four selected volcanic eruptions in South and Central America, using the
GOME, SCIAMACHY and GOME-2 instruments. |
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