A Hybrid Model for the Summit Region of Merapi Volcano, Java, Indonesia, Derived from Gravity Changes and Deformation Measured between 2000 and 2002

descriptionPublicationkeyboard_double_arrow_right Part of book or chapter of book , Article 01 Apr 2007 English Publisher:Birkhäuser BaselJournal:Pure and Applied Geophysics, volume 164, pages 837-850 (issn: 0033-4553, eissn: 1420-9136,

Copyright policy )Funded by:NSERC | unidentified

Authors: Tiede, C.; Tiampo, Kristy F.; Fernández Torres, José; Gerstenecker, C.;

doi: 10.1007/978-3-7643-8417-3_12 , 10.1007/s00024-007-0183-x

handle: 10261/34557

A Hybrid Model for the Summit Region of Merapi Volcano, Java, Indonesia, Derived from Gravity Changes and Deformation Measured between 2000 and 2002

- Summary
- Subjects
- Metrics

Abstract

Three-dimensional displacements and gravity changes were measured at 20 points between 2000 and 2002 at Merapi volcano, Java, Indonesia. Former models focused on the modeling of a single magmatic source located in the summit region of the volcano. Such models do not fit to our measurements between 2000 and 2002. A new hybrid model approach is developed consisting of an elastic-gravitational source described by a mass and energy term as well as a combined dip-slip/strike-slip fault zone in the summit region. Both nonlinear optimization problems, given by the common inversion of three-dimensional displacements and gravity changes, are solved by applying a genetic algorithm. The hybrid model fits the measurements accurately, tested by Fisher test statistics. Furthermore, our model for Merapi volcano confirms previous structural models for this region so that the new model is statistically proven as well as physically reliable.

Peer reviewed

Related Organizations

Western University
Canada
TU Darmstadt
Germany
Max Planck Society
Germany
Max Planck Institute for Astronomy
Germany

Keywords

Genetic algorithm, Fault model, Fault models, Elastic-gravitational model, Merapi Volcano, Hybrid models, Hybrid model

Impact byBIP!

	selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	2
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Average
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Average
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Average