Search Results - "Bursik, Marcus"

Deformation of volcanic materials by pore pressurization: analog experiments with simplified geometry by Hyman, David, Bursik, Marcus

“…The pressurization of pore fluids plays a significant role in deforming volcanic materials; however, understanding of this process remains incomplete,…”
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Probabilistic forecasting of plausible debris flows from Nevado de Colima (Mexico) using data from the Atenquique debris flow, 1955 by Bevilacqua, Andrea, Patra, Abani K, Bursik, Marcus I, Pitman, E. Bruce, Macias, Jose Luis, Saucedo, Ricardo, Hyman, David

“…We detail a new prediction-oriented procedure aimed at volcanic hazard assessment based on geophysical mass flow models constrained with heterogeneous and…”
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Statistical theory of probabilistic hazard maps: a probability distribution for the hazard boundary location by Hyman, David M, Bevilacqua, Andrea, Bursik, Marcus I

“…The study of volcanic flow hazards in a probabilistic framework centers around systematic experimental numerical modeling of the hazardous phenomenon and the…”
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Community established best practice recommendations for tephra studies—from collection through analysis by Wallace, Kristi L., Bursik, Marcus I., Kuehn, Stephen, Kurbatov, Andrei V., Abbott, Peter, Bonadonna, Costanza, Cashman, Katharine, Davies, Siwan M., Jensen, Britta, Lane, Christine, Plunkett, Gill, Smith, Victoria C., Tomlinson, Emma, Thordarsson, Thor, Walker, J. Douglas

“…Tephra is a unique volcanic product with an unparalleled role in understanding past eruptions, long-term behavior of volcanoes, and the effects of volcanism on…”
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Tephra deposit inversion by coupling Tephra2 with the Metropolis-Hastings algorithm: algorithm introduction and demonstration with synthetic datasets by Yang, Qingyuan, Pitman, E. Bruce, Bursik, Marcus, Jenkins, Susanna F.

“…In this work we couple the Metropolis-Hastings algorithm with the volcanic ash transport model Tephra2 , and present the coupled algorithm as a new method to…”
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Automated detection and measurement of volcanic cloud growth: towards a robust estimate of mass flux, mass loading and eruption duration by Bear-Crozier, Adele, Pouget, Solène, Bursik, Marcus, Jansons, Emile, Denman, Jarrad, Tupper, Andrew, Rustowicz, Rose

“…Identifying the spatial extent of volcanic ash clouds in the atmosphere and forecasting their direction and speed of movement has important implications for…”
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Data analysis of the unsteadily accelerating GPS and seismic records at Campi Flegrei caldera from 2000 to 2020 by Bevilacqua, Andrea, De Martino, Prospero, Giudicepietro, Flora, Ricciolino, Patrizia, Patra, Abani, Pitman, E. Bruce, Bursik, Marcus, Voight, Barry, Flandoli, Franco, Macedonio, Giovanni, Neri, Augusto

“…Ongoing resurgence affects Campi Flegrei caldera (Italy) via bradyseism, i.e. a series of ground deformation episodes accompanied by increases in shallow…”
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Simulating the Transport and Dispersal of Volcanic Ash Clouds With Initial Conditions Created by a 3D Plume Model by Cao, Zhixuan, Bursik, Marcus, Yang, Qingyuan, Patra, Abani

“…Volcanic ash transport and dispersion (VATD) models simulate atmospheric transport of ash from a volcanic source represented by parameterized concentration of…”
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Workflows for Construction of Spatio-Temporal Probabilistic Maps for Volcanic Hazard Assessment by Jones-Ivey, Renette, Patra, Abani, Bursik, Marcus

“…Probabilistic hazard assessments for studying overland pyroclastic flows or atmospheric ash clouds under short timelines of an evolving crisis, require using…”
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Dynamic Probabilistic Hazard Mapping in the Long Valley Volcanic Region CA: Integrating Vent Opening Maps and Statistical Surrogates of Physical Models of Pyroclastic Density Currents by Rutarindwa, Regis, Spiller, Elaine T., Bevilacqua, Andrea, Bursik, Marcus I., Patra, Abani K.

“…Ideally, probabilistic hazard assessments combine available knowledge about physical mechanisms of the hazard, data on past hazards, and any precursor…”
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Comparative Analysis of the Structures and Outcomes of Geophysical Flow Models and Modeling Assumptions Using Uncertainty Quantification by Patra, Abani, Bevilacqua, Andrea, Akhavan-Safaei, Ali, Pitman, E. Bruce, Bursik, Marcus, Hyman, David

“…We advocate here a methodology for characterizing models of geophysical flows and the modeling assumptions they represent, using a statistical approach over…”
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Estimation of eruption source parameters from umbrella cloud or downwind plume growth rate by Pouget, Solène, Bursik, Marcus, Webley, Peter, Dehn, Jon, Pavolonis, Michael

“…We introduce a new method to estimate mass eruption rate (MER) and mass loading from the growth of a volcanic umbrella cloud or downwind plume using satellite…”
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The Development of Volcanic Ash Cloud Layers over Hours to Days Due to Atmospheric Turbulence Layering by Bursik, Marcus, Yang, Qingyuan, Bear-Crozier, Adele, Pavolonis, Michael, Tupper, Andrew

“…Volcanic ash clouds often become multilayered and thin with distance from the vent. We explore one mechanism for the development of this layered structure. We…”
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Probabilistic Enhancement of the Failure Forecast Method Using a Stochastic Differential Equation and Application to Volcanic Eruption Forecasts by Bevilacqua, Andrea, Pitman, Eric Bruce, Patra, Abani, Neri, Augusto, Bursik, Marcus, Voight, Barry

“…We introduce a doubly stochastic method for performing material failure theory based forecasts of volcanic eruptions. The method enhances the well known…”
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Interpretation of umbrella cloud growth and morphology: implications for flow regimes of short-lived and long-lived eruptions by Pouget, Solène, Bursik, Marcus, Johnson, Christopher G., Hogg, Andrew J., Phillips, Jeremy C., Sparks, R. Stephen J.

“…New numerical and analytical modeling shows that the growth of a volcanic umbrella cloud, expressed as the increase of radius with time, proceeds through…”
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Landslide susceptibility of volcanic landforms in the Río El Estado watershed, Pico de Orizaba volcano, Mexico by Legorreta Paulín, Gabriel, Bursik, Marcus I., Zamorano Orózco, José Juan, Figueroa García, José Ernesto

“…The combination of high-quality landslide inventories and geomorphic attributes that can be derived and analyzed by geographic information systems can provide…”
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Time Dependence of Passive Degassing at Volcán Popocatépetl, Mexico, From Infrared Measurements: Implications for Gas Pressure Distribution and Lava Dome Stability by Hyman, David M., Bursik, Marcus I., Legorreta Paulín, Gabriel

“…The transport and storage of gas within lava domes is critical to their stability or explosivity. To analyze gas flow through these systems, degassing from…”
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Tectonic Geomorphology and Volcano-Tectonic Interaction in the Eastern Boundary of the Southern Cascades (Hat Creek Graben Region), California, USA by Paguican, Engielle M. R., Bursik, Marcus I.

“…The eastern boundary of the Southern Cascades (Hat Creek Graben region), California, USA, is an extensively faulted volcanic corridor between the Cascade Range…”
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Settling-driven convection: A mechanism of sedimentation from stratified fluids by Hoyal, David C. J. D., Bursik, Marcus I., Atkinson, Joseph F.

“…Convection driven by sediment particles may play an important role in sedimentation from the base of buoyant (hypopycnal) plumes, for example, fluvial plumes…”
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A new interpolation method to model thickness, isopachs, extent, and volume of tephra fall deposits by Yang, Qingyuan, Bursik, Marcus

“…Tephra thickness distribution is the primary piece of information used to reconstruct the histories of past explosive volcanic eruptions. We present a method…”
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