V007
Beyond the Elastic Half-Space: Understanding Volcanic Processes and Their Timescales Through More Realistic Deformation Modeling
Session ID#: 81804
Session Description:
Historically, ground deformation at active volcanoes has often been modeled using simple source geometries embedded within homogeneous elastic half-spaces. However, the proliferation of available geodetic resources and complementary data, combined with advancing modeling capabilities, means that researchers can now model more realistic scenarios with the aim of better capturing the behavior of these dynamic systems. Examples include the inclusion of surface topography, variable rheology, mechanical heterogeneity within the edifice, or complex source geometries. Moreover, the combination of separate datasets (ground deformation and gravimetry, for example) has proven valuable for illuminating processes at active volcanoes, affording us better constraints on deformation source location and geometry. In this spirit, we invite contributions:
- using numerical/experimental models to better fit observed ground deformation at different scales (e.g. magma storage/propagation)
- focusing on sensitivities of model parameters and uncertainties
- constraining model parameters (e.g. through deformation experiments)
- combining discrete datasets (e.g. geodetic, geophysical, thermal)
Index Terms:
1240 Satellite geodesy: results [GEODESY AND GRAVITY]
1295 Integrations of techniques [GEODESY AND GRAVITY]
8445 Experimental volcanism [VOLCANOLOGY]
8485 Remote sensing of volcanoes [VOLCANOLOGY]
Primary Convener: Jamie Farquharson, University of Miami, Department of Marine Geology and Geophysics, Miami, United States
Conveners: Fabien Albino, University of Miami, Marine Geology and Geophysics, Miami, FL, United States and Benoit Taisne, Asian School of the Environment, Singapore, Singapore
Primary Liaison: Jamie Farquharson, EOST École et Observatoire des Sciences de la Terre, Strasbourg Cedex, France
Investigating Transient Deformation of Okmok Volcano, Alaska, using FEMs (493778)
Jared Long-Fox1, Tim Masterlark1 and Sui Tung2, (1)South Dakota School of Mines & Technology, Rapid City, SD, United States, (2)Arizona State University, Tempe, AZ, United States
ACTIVE DEFLATION OF PAST RESURGENT STRUCTURES: THE CASE OF ISCHIA ISLAND (506222)
Alessandro Galvani, Istituto Nazionale di Geofisica e Vulcanologia, ONT, Rome, Italy, Vincenzo Sepe, National Institute of Geophysics and Volcanology, ONT, Rome, Italy, Roberto Devoti, INGV National Institute of Geophysics and Volcanology, ONT, Rome, Italy, Mario Dolce, National Institute of Geophysics and Volcanology, Osservatorio Vesuviano - Napoli, Rome, Italy and Guido Ventura, National Institute of Geophysics and Volcanology, Rome, Italy
Forecasting the June 26, 2018 Eruption of Sierra Negra Volcano, Galapagos (Invited) (507689)
Patricia M Gregg1, Yan Zhan1, Falk Amelung2, Dennis Geist3, Patricia A Mothes4, Yunjun Zhang5 and Seid Koric6, (1)University of Illinois at Urbana-Champaign, Urbana, IL, United States, (2)University of Miami, Department of Marine Geology and Geophysics, Miami, FL, United States, (3)University of Idaho, Moscow, ID, United States, (4)Instituto Geofisico, Quito, Ecuador, (5)RSMAS, Miami, FL, United States, (6)University of Illinois at Urbana Champaign, Mechanical Science and Engineering, Urbana, IL, United States
Magma ascent and trajectory below impact craters on the Moon and terrestrial planets (512545)
Chloe Michaut, Ecole Normale Supérieure Lyon, Lyon, France, Virginie Pinel, ISTerre Institute of Earth Sciences, Saint Martin d'Hères, France, Francesco Maccaferri, Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany and Damian Walwer, LGLTPE Laboratoire de Géologie de Lyon : Terre, Planètes et Environnement, Villeurbanne Cedex, France
Maxwell vs Standard Linear Solid: Spatiotemporal volcano deformation patterns in a 3D temperature-dependent viscoelastic regime (514703)
Matthew Head1, James Hickey1, Joachim Gottsmann2 and Nicolas Fournier3, (1)University of Exeter, Camborne School of Mines, Penryn, United Kingdom, (2)University of Bristol, School of Earth Sciences, Bristol, United Kingdom, (3)GNS Science, Taupo, New Zealand
A general approach for solving volcano deformation inverse by applying finite element method and metamodel techniques. (552753)
Rocco Malservisi, University of South Florida Tampa, Tampa, FL, United States, Hao Zhang, Schaeffler Technologies, Schweinfurt, Germany and Kai-Uwe Bletzinger, Technische Universität München, München, Germany
Tracking Inflation of Okmok Volcano with a Mogi Source and FEM Constrained by InSAR and GPS Data Between 2010-2019 (583226)
Sandra Slead1, Xiaohua Xu2, David T Sandwell3 and Meng (Matt) Wei1, (1)University of Rhode Island Narragansett Bay, Narragansett, RI, United States, (2)Scripps Institution of Oceanography, Institute of Geophysics and Planetary Physics, La Jolla, CA, United States, (3)Scripps Institution of Oceanography, La Jolla, CA, United States
Response of a poroviscoelastic mushy magma chamber during magma injection, and implications for interpreting geodetic and petrologic observations (587015)
Yang Liao, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Samuel A Soule, WHOI, Woods Hole, MA, United States and Meghan Jones, University of Miami, Falmouth, MA, United States
