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Measuring large topographic change with InSAR: Lava thicknesses, extrusion rate and subsidence rate at Santiaguito volcano, Guatemala

Abstract:

Lava flows can produce changes in topography of the order of 10s-100s of metres. A knowledge of the resulting volume change provides evidence about the dynamics of an eruption. Using differential InSAR phase delays, it is possible to estimate height differences between the current topography and a digital elevation model (DEM). This does not require a pre-event SAR image, so it does not rely on interferometric phase remaining coherent during eruption and emplacement. Synthetic tests predict t...

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Publication status:
Published

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Publisher copy:
10.1016/j.epsl.2012.04.027

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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
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Journal:
EARTH AND PLANETARY SCIENCE LETTERS
Volume:
335
Pages:
216-225
Publication date:
2012-06-15
DOI:
ISSN:
0012-821X
Source identifiers:
331890
Language:
English
Keywords:
Pubs id:
pubs:331890
UUID:
uuid:045857fb-2484-4f69-8bb7-85867f63c81a
Local pid:
pubs:331890
Deposit date:
2012-12-19

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