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Título

Three-dimensional indirect boundary element method for deformation and gravity changes in volcanic areas: application to Teide volcano (Tenerife, Canary Islands)

Otros títulos3D indirect boundary element method for deformation and gravity changes in volcanic areas: application to Teide volcano (Tenerife, Canary Islands)
AutorCharco, María ; Luzón, Francisco; Fernández Torres, José ; Tiampo, Kristy F.; Sánchez-Sesma, Francisco José
Palabras claveComputational Geophysics
Geodesy
Gravity changes
Volcanology
Teide volcano
Fecha de publicación11-ago-2007
EditorAmerican Geophysical Union
CitaciónJournal of Geophysical Research, 112, B08409 (2007)
ResumenMost deformation models of volcanoes assume that the Earth is a linear, elastic, isotropic and homogeneous half-space, although some volcanic areas are associated with significant relief. We investigate the effects of topography on surface deformation and gravity changes caused by a magma intrusion in the Earth's crust. A three-dimensional (3-D) indirect boundary element method (IBEM) that incorporates realistic topographic features is developed in order to perform this analysis. Our results show that the topography alters both the magnitude and pattern of the deformation and gravity signal. As an example of realistic topography, we consider a spherical source of dilatation located at 4 km depth below Teide volcano summit (Tenerife, Canary Islands) in order to simulate the deformation and gravity changes that could be observed at Tenerife if a hypothetical intrusion occurred in the volcanic system. This approach gives a picture of the 3-D topographic effect at Teide that can provide insight in order to improve the geodetic monitoring of the volcano.
Versión del editorhttp://dx.doi.org/10.1029/2006JB004740
URIhttp://hdl.handle.net/10261/24098
DOI10.1029/2006JB004740
ISSN0148-0227
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