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Physics of Volcanoes ICTP, Trieste
HVO website
Physics of Volcanoes ICTP, Trieste HVO website Amelung et al, 2000 - - PowerPoint PPT Presentation
Physics of Volcanoes ICTP, Trieste HVO website Amelung et al, 2000 - - PowerPoint PPT Presentation
Physics of Volcanoes ICTP, Trieste HVO website Amelung et al, 2000 Darwin Volcano Simulated Yun et al, 2006 Dzurisin, Rev. Geophy., 2003 Elongate chambers produce strong radial displacements relative to vertical Sills and flat-topped
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SLIDE 3
Darwin Volcano Simulated
Amelung et al, 2000
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- Elongate chambers produce strong radial
displacements relative to vertical
- Sills and flat-topped chambers produce strong
vertical relative to radial
Dzurisin, Rev. Geophy., 2003 Yun et al, 2006
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Allows Estimation of:
- Source depth
- Limited chamber geometry (except dikes)
- Orientation
- Delta V or Delta p *V
- Dikes well resolved
Cannot Determine:
- Absolute Chamber Volume
- Pressure change
- No Predictive Capability
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6
Chadwick et al., 2006 Courtesy Karen Harpp Amelung, Jónsson et al., 2000
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Chadwick et al. (2006)
Displacements 4/2003 – 21/10/2005 Removing Faulting
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F Sigmundsson et al. Nature 468, 426-430 (2010) doi:10.1038/nature09558
InSAR, GPS and seismic data at Eyjafjallajökull.
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InSAR
ALOS Ascending Image ALOS Descending Image Descending Orbits fly from north to south
Courtesy of S. Yun
Ascending Orbits fly from south to north N
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KTPM ESC UWE POC NUPM
Lava Observed
Poland et al EOS 2008; Montgomery- Brown, et al, 2010; 2011
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Eruption Eruption
http://hraun.vedur.is/ja/englishweb/heklanews.html
Agustsson, et al, AGU 2000
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Darwin Volcano Simulated
Amelung et al, 2000
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2000 Eruption
Sturkell et al (2006); modified from Agustsson et al, 2000.
1991 Eruption
Linde et al (Nature, 1993)