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Probabilistic studies with Eject! for Matlab
25 Jun 2019 | Contributor(s): Karen Strehlow, Laura Sandri, Jo Gottsmann, Geoff Kilgour, Alison Rust, Roberto Tonini
Using a translation of the code of Eject! (Mastin 2001; 2011) in Matlab (Strehlow et al., 2019), we provide a workflow for probabilistic analyses of ballistic ejections during volcanic eruptions that can be used for hazard assessments. An example for the use of this workflow...
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Eject! for Matlab
24 Jun 2019 | Contributor(s): Karen Strehlow, Laura Sandri, Jo Gottsmann, Geoff Kilgour, Alison Rust, Roberto Tonini
The program "Eject!" calculates the trajectories of ballistic projectiles from volcanic eruptions (Mastin, 2001; 2011). The code was originally written in Visual Basic, which we have now translated into an editable Matlab procedure (Strehlow et al., 2017). Input parameters...
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Volcanic Unrest Simulation Exercises (VUSE)
20 Nov 2014 | Contributor(s): Richard Bretton, Jo Gottsmann, R Christie
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Legal aspects of Risk Communication
20 Nov 2014 | Contributor(s): Richard Bretton, Jo Gottsmann, R Christie
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Towards a probabilistic scheme: How can we recognize and track non-magmatic unrest and related hazards?
18 Feb 2014 | Contributor(s): dmitri rouwet, Laura Sandri, Warner Marzocchi, Jo Gottsmann
Eruption forecasting is a major goal in volcanology. The intrinsic complexity and non-linearity of volcanic systems has recently led to an intertwining of deterministic to probabilistic eruption forecasting methods. However, many volcanoes often pass states of non-eruptive and non-magmatic unrest...
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Legal aspects of Communication (VUELCO)
29 Jan 2014 | Contributor(s): Richard Bretton, Jo Gottsmann, Ryerson Christie
This commication workshop presentation covers some basic legal issues relevant to effective volcanic risk communication
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Global volcanic unrest in the 21st century: An analysis of the first decade
16 Sep 2013 | Contributor(s): Jo Gottsmann, Rosa Sobradelo
We define volcanic unrest as the deviation from the background or baseline behaviour of a volcano towards a behaviour which is a cause for concern in the short-term because it might prelude an eruption. When unrest is preceded by periods of quiescence over centuries or millennia it is...
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STRUCTURAL CONTROLS ON MONOGENETIC VOLCANISM: THE GARROTXA VOLCANIC FIELD CASE STUDY
04 Sep 2013 | Contributor(s): Xavier Bolos, Stephanie Barde-Cabusson, Jo Gottsmann, Joan Marti, Dario Pedrazzi, Llorenç Planaguma, Antonio Camacho, Adelina Geyer Traver, Erika Ronchin
The factors controlling the precursory activity in monogenetic volcanic fields are still poorly understood, which makes that eruption forecasts in these systems is not very accurate. The fact that in monogenetic volcanism each eruption has a different vent suggests that volcanic susceptibility...
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Deep Magmatic Unrest: ground uplift and magma rise at Uturuncu volcano
07 Aug 2013 | Contributor(s): James Hickey, Jo Gottsmann, Rodrigo del Potro
Uturuncu volcano in southern Bolivia has been steadily inflating since at least 1965, and combined with shallow seismicity and near-summit active fumaroles represents a volcanic system showing significant signs of unrest. This study focuses on the mechanism driving the 70 km wide region of ground...
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VOLCANIC UNREST IN THE 21ST CENTURY
09 Apr 2013 | Contributor(s): Jo Gottsmann, Georgia Phillipson
One of the most pertinent issues in volcanic risk management is the question whether volcanic unrest will culminate in an eruption in the short-term or not. This question is particularly difficult to answer at volcanoes where unrest is preceded by lengthy periods of quiescence and where hard data...
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J. Gottsmann COV7 presentation
20 Mar 2013 | Contributor(s): Jo Gottsmann
Exploring the pre-eruptive geodetic signature of a future M7 explosive eruptionRecent eruptions of intermediate magmas in volcanic arcs with well-documented pre-eruptive geodetic signatures were of small to modest magnitude. The pre-eruptive ground deformation of a future large magnitude...
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Georgia Phillipson, Jo Gottsmann COV7 Colima abstract and presentation
20 Mar 2013 | Contributor(s): Jo Gottsmann
Global volcanic unrest in the 21st Century: An analysis of the first decadeVolcanic unrest is perhaps best defined as the deviation from the background or baseline behaviour of a volcano towards a level of activity, which is cause for concern in the short-term because it might be a prelude to an...
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Phillipson and Gottsmann EGU2012 Vol. 14, EGU2012-3695, 2012
20 Mar 2013 | Contributor(s): Jo Gottsmann
Volcanic unrest is the deviation from the background or baseline behaviour of a volcano towards a level of activity, which is cause for concern in the short term because it might be a prelude to an eruption. When volcanic unrest is preceded by lengthy periods of quiescence it is particularly...
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J. Gottsmann EGU 2012 Abstract Vol. 14, EGU2012-2353, 2012
20 Mar 2013 | Publications | Contributor(s): Jo Gottsmann
In this presentation I explore magma chamber stress conditions prior to a large-magnitude andesitic eruption and associated pre-eruptive ground deformation and gravity field perturbations. The analyis is informed by constraints from multi-disciplinary investigations of the data-rich and ongoing...
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A glimpse into the future - Earth Science on Trial! (VUELCO & CoV7, Colima 2012)
20 Mar 2013 | Presentations | Contributor(s): Richard Bretton, Jo Gottsmann
The United Nations has played a vital role in improving the governance of natural hazards including volcanoes. The UN's International Decade of Natural Disaster Reduction 1990-2000 generated an increased interest in and concern for disaster-related issues and in particular proactive risk...
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Reflections on the L'Aquila verdict - A candid risk assessment of the role of the earth scientist and some suggestions for risk management (VUELCO Barcelona 2013)
20 Mar 2013 | Presentations | Contributor(s): Richard Bretton, Jo Gottsmann, Robert Stephen Sparks
The scientific community's public reaction to the conviction and sentencing of seven Italian scientists was immediate, passionate and, too large extent, ill-informed. The after-shock waves were predictable; the Twitter feeds, blogs and press releases vitriolic. There was unanimity that we were...
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Georgia Phillipson and J. Gottsmann Presentation_Barcelona March 2013
20 Mar 2013 | Presentations | Contributor(s): Jo Gottsmann
Volcanic Unrest in the 21st Century
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Hazard Assessment Reports must be in writing but what should they contain and why? (VUELCO Barcelona 2013)
20 Mar 2013 | Presentations | Contributor(s): Richard Bretton, Jo Gottsmann
Immediately after the VUELCO-Colima 2012 volcanic unrest simulation exercise, feedback was obtained from the two Civil Protection authorities that took part – the authorities for the States of Colima and Jalisco respectively. The feedback was mixed and yet very informative. It covered the content...
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Jo Gottsmann - Unrest in the 21 st Century- Presentation BCN
20 Mar 2013 | Presentations | Contributor(s): Jo Gottsmann
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ADVANCES IN INTEGRATED VOLCANIC GEODETIC MODELLING AND APPLICATION TO DEEP-SEATED UNREST AT UTURUNCU VOLCANO, BOLIVIA
18 Mar 2013 | Presentations | Contributor(s): James Hickey, Jo Gottsmann
Moving on from simple, analytical deformation models, we have developed a suite of numerical models that can account for a range of realistic crustal complexities and are thus more consistent with multi-disciplinary constraints. Using Finite Element techniques through commercial code COMSOL...
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Abstracts of presentations at the VUELCO conference (March 7 and 8, 2013 (Barcelona, Spain)
12 Mar 2013 | Publications | Contributor(s): Jo Gottsmann
This pdf files contains all abstracts submitted for presentation at the conference.
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COV7 Workshop W2: Volcano Monitoring Techniques
14 Dec 2012 | Workshops | Contributor(s): Jeffrey Johnson, Nick Varley, Eliza S Calder, Gregory Waite, Jo Gottsmann, Simon Carn
Innovation in volcano monitoring techniques is rapid. In the search for eruption precursors, the more traditional areas of seismicity, geodesy and geochemistry are now routinely complemented by studies of acoustic or thermal emission. We are also beginning to better understand the significance of...
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Unrest at VUELCO's target volcanoes
13 Jan 2012 | *Data Sets/Collections | Contributor(s): Jo Gottsmann
This is a compilation, analysis and part evaluation of reported unrest at the VUELCO target volcanoes. The data and information was kindly provided by Georgia Phillipson as part of the M.Res project at the School of Earth Sciences. We do not claim this to be an exhaustive data set, but to...