Effects of lava-dome growth on the crater glacier of Mount St. Helens, Washington

2008 ◽  
pp. 257-276 ◽  
Author(s):  
Joseph S. Walder ◽  
Steve P. Schilling ◽  
James W. Vallance ◽  
Richard G. LaHusen
Keyword(s):  
Lava Dome ◽  
Dome Growth ◽  
Mount St Helens

Remote camera observations of lava dome growth at Mount St. Helens, Washington, October 2004 to February 2006

2008 ◽  
pp. 225-236 ◽  
Author(s):  
Michael P. Poland ◽  
Daniel Dzurisin ◽  
Richard G. LaHusen ◽  
Jon J. Major ◽  
Dennis Lapcewich ◽  
...  
Keyword(s):  
Lava Dome ◽  
Dome Growth ◽  
Remote Camera ◽  
Mount St Helens

scholarly journals Modeling the dynamic response of a crater glacier to lava-dome emplacement: Mount St Helens, Washington, USA

2007 ◽  
Vol 45 ◽  
pp. 21-28 ◽  
Author(s):  
Stephen F. Price ◽  
Joseph S. Walder
Keyword(s):  
Lava Dome ◽  
High Strain ◽  
Strain Rates ◽  
Field Scale ◽  
Glacier Surface ◽  
Surface Motion ◽  
Sequence Of Events ◽  
Dome Growth ◽  
Scale Experiment ◽  
Mount St Helens

AbstractThe debris-rich glacier that grew in the crater of Mount St Helens after the volcano’s cataclysmic 1980 eruption was split in two by a new lava dome in 2004. For nearly six months, the eastern part of the glacier was squeezed against the crater wall as the lava dome expanded. Glacier thickness nearly doubled locally and surface speed increased substantially. As squeezing slowed and then stopped, surface speed fell and ice was redistributed downglacier. This sequence of events, which amounts to a field-scale experiment on the deformation of debris-rich ice at high strain rates, was interpreted using a two-dimensional flowband model. The best match between modeled and observed glacier surface motion, both vertical and horizontal, requires ice that is about 5 times stiffer and 1.2 times denser than normal, temperate ice. Results also indicate that lateral squeezing, and by inference lava-dome growth adjacent to the glacier, likely slowed over a period of about 30 days rather than stopping abruptly. This finding is supported by geodetic data documenting dome growth.

Use of digital aerophotogrammetry to determine rates of lava dome growth, Mount St. Helens, Washington, 2004-2005

2008 ◽  
pp. 145-167 ◽  
Author(s):  
Steve P. Schilling ◽  
Ren A. Thompson ◽  
James A. Messerich ◽  
Eugene Y. Iwatsubo
Keyword(s):  
Lava Dome ◽  
Dome Growth ◽  
Mount St Helens

Use of thermal infrared imaging for monitoring renewed dome growth at Mount St. Helens, 2004

2008 ◽  
pp. 347-359 ◽  
Author(s):  
David J. Schneider ◽  
James W. Vallance ◽  
Rick L. Wessels ◽  
Matthew Logan ◽  
Michael S. Ramsey
Keyword(s):  
Infrared Imaging ◽  
Thermal Infrared ◽  
Thermal Infrared Imaging ◽  
Dome Growth ◽  
Mount St Helens

On lava dome growth, with application to the 1979 lava extrusion of the soufrière of St. Vincent

1982 ◽  
Vol 14 (3-4) ◽  
pp. 199-222 ◽  
Author(s):  
Herbert E. Huppert ◽  
John B. Shepherd ◽  
R. Haraldur Sigurdsson ◽  
Stephen J. Sparks
Keyword(s):  
Lava Dome ◽  
Dome Growth

Using the level set method to model endogenous lava dome growth

2007 ◽  
Vol 112 (B3) ◽  
Author(s):  
A. J. Hale ◽  
L. Bourgouin ◽  
H. B. Mühlhaus
Keyword(s):  
Level Set Method ◽  
Level Set ◽  
Lava Dome ◽  
Dome Growth
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