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Dome growth at Mount Cleveland, Aleutian Arc, quantified by time-series TerraSAR-X imagery

Geophysical Research Letters

By:
https://doi.org/10.1002/2015GL066784

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Abstract

Synthetic aperture radar imagery is widely used to study surface deformation induced by volcanic activity; however, it is rarely applied to quantify the evolution of lava domes, which is important for understanding hazards and magmatic system characteristics. We studied dome formation associated with eruptive activity at Mount Cleveland, Aleutian Volcanic Arc, in 2011–2012 using TerraSAR-X imagery. Interferometry and offset tracking show no consistent deformation and only motion of the crater rim, suggesting that ascending magma may pass through a preexisting conduit system without causing appreciable surface deformation. Amplitude imagery has proven useful for quantifying rates of vertical and areal growth of the lava dome within the crater from formation to removal by explosive activity to rebirth. We expect that this approach can be applied at other volcanoes that host growing lava domes and where hazards are highly dependent on dome geometry and growth rates.

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Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Dome growth at Mount Cleveland, Aleutian Arc, quantified by time-series TerraSAR-X imagery
Series title:
Geophysical Research Letters
DOI:
10.1002/2015GL066784
Volume:
42
Issue:
24
Year Published:
2016
Language:
English
Publisher:
Americal Geophysical Union
Contributing office(s):
Volcano Science Center
Description:
8 p.
First page:
10614
Last page:
10621
Country:
United States
State:
Alaska
Other Geospatial:
Mount Cleveland
Online Only (Y/N):
N
Additional Online Files (Y/N):
N