Workshop on the Impacts associated with the primary fallout of volcanic ash and subsequent aeolian remobilisation, Consensual Document

19 May 2020 | Publications | Contributor(s): Lucia Dominguez, Costanza Bonadonna, Donaldo Bran

The inherent complexity associated with volcanic eruptions and their relationship with societies requires innovative strategies about how we assess and manage risk. The 2011 Cordón Caulle eruption (2011-CC) demonstrated the additional complexity associated with secondary hazards and...

Workshop on Wind-remobilisation processes of volcanic ash, Consensual Document

20 Feb 2020 | Publications | Contributor(s): Costanza Bonadonna, Paul A Jarvis, Lucia Dominguez, Corine Frischknecht, Pablo Forte, Donaldo Bran, Rigoberto Aguilar, Frances Beckett, Manuela Elissondo, Jack Gillies, ulrich kueppers, Jonathan Merrison, Nick Varley, Kristi L Wallace

Explosive volcanic eruptions can eject large quantities of tephra into the atmosphere that can be dispersed and deposited over wide areas. Whilst the hazardous consequences of primary tephra fallout are well known, subsequent remobilisation of ash by aeolian processes can continue to present an...

1st IAVCEI/GVM Workshop: "From Volcanic Hazard to Risk Assessment", Geneva, 27-29 June 2018

18 Dec 2018 | Workshops | Contributor(s): Costanza Bonadonna, Sebastien Biass, Eliza S Calder, Corine Frischknecht, Chris Eric Gregg, Susanna Jenkins, Sue C Loughlin, Scira Menoni, Shinji Takarada, Tom Wilson

The complexity of volcanic risk analysis typically resides in the interaction of multiple hazard, vulnerability and exposure aspects dynamically acting over various spatial and temporal scales. Risk analyses provide an evidence-based approach to development and implementation of proactive...

TephraProb: a Matlab package for probabilistic hazard assessments of tephra fallout

15 Sep 2016 | Offline Tools | Contributor(s): Sebastien Biass, Costanza Bonadonna, Laura J Connor, Chuck B Connor

Download the code on GitHub: https://github.com/e5k/TephraProbFollow updates on: https://e5k.github.io/TephraProb is a toolbox of Matlab functions designed to produce scenario–based probabilistic hazard assessments for ground tephra accumulation. The toolbox includes a series of...

A Matlab implementation of the Carey and Sparks (1986) model

04 Nov 2015 | Offline Tools | Contributor(s): Sebastien Biass, Gholamohssein Bagheri, Costanza Bonadonna

Download the code on GitHub: https://github.com/e5k/CareySparks86_MatlabFollow updates on: https://e5k.github.io/   This file is a Matlab implementation of the Carey and Sparks (1986) model to estimate i) the plume height above sampling altitude and ii) the wind speed at the...

TError: towards a better quantification of the uncertainty propagated during the characterization of tephra deposits

28 Nov 2014 | Offline Tools | Contributor(s): Sebastien Biass, Gholamohssein Bagheri, William Aeberhard, Costanza Bonadonna

NOTE The code is now maintained on GitHub: https://github.com/e5k/TErrorFollow updates on: https://e5k.github.io/  Eruption Source Parameters (ESP; e.g. plume height, erupted volume/mass, mass eruption rate, eruption duration) inferred from tephra deposits are associated with large degrees...

MeMoVolc workshop on the "Dynamics of volcanic explosive eruptions", Consensual Document

15 Jul 2014 | Publications | Contributor(s): Costanza Bonadonna, Raffaello Cioni, Antonio Costa, Tim Druitt, Jeremy Phillips, Laura Pioli

This workshop served to assess the main advantages and shortcomings of existing eruption classification schemes and to identify open questions and research priorities that could help improve our understanding of volcanic explosive eruptions. We identified the main parameters and processes...

2nd IUGG-WMO Workshop on Ash Dispersal Forecast and Civil Aviation, Consensual Document

18 Feb 2014 | Workshops | Contributor(s): Costanza Bonadonna, Peter W Webley, Matthew Craig Hort, Arnau Folch, Sue C Loughlin, Herbert Puempel

An international expert community of volcano observatories, academic scientists, volcanic ash advisory centres and representatives of aviation regulators, engine manufacturers and airlines met in Geneva on 18-20 November 2013 to discuss progress on ash dispersal forecasting and produce a roadmap...

TOTGS: Total grainsize distribution of tephra fallout

20 Jan 2014 | Offline Tools | Contributor(s): Seb Biass, Costanza Bonadonna

NOTE The code is now maintained on GitHub: https://github.com/e5k/TOTGS Follow updates on: https://e5k.github.io/  Quantifying the total grainsize distribution (TGSD) is a necessary step to achieve a thorough characterization of a given tephra deposit. Several methods exist to...

Eruption data for ash-cloud model validation

04 Apr 2013 | *Data Sets/Collections | Contributor(s): Larry Garver Mastin, Costanza Bonadonna, Arnau Folch, peter webley, barbara stunder, Michael Pavolonis

This is a collection of data, references, and links to data on well-documented eruptions whose observations can be used to validate ash-cloud transport models. Data include, among other things, plume height, duration, erupted volume, satellite observations, numerical wind fields, and grain-size...

Tephra2 Probabilistic Runner

29 Feb 2012 | *Tools | Contributor(s): Costanza Bonadonna, Laura J Connor, Chuck B Connor, Leah Michelle Courtland

Will vary the wind field for a given eruption in order to determine the most probable mass loading of tephra on the ground.

Determination of the largest clasts of tephra deposits for the characterization of explosive volcanic eruptions: report of the IAVCEI Commission on Tephra Hazard Modelling

27 Jul 2011 | Publications | Contributor(s): Costanza Bonadonna, simona scollo, Raffaello Cioni, Laura Pioli, Marco Pistolesi

This report summarizes the results of the field workshop of the IAVCEI Commission on Tephra Hazard Modelling that was carried out in Salcedo, Ecuador (January 16-18, 2006) with the main objective of assessing the best way to characterize the largest clasts of tephra deposits. Defining the largest...

Tephra2: Student Version

21 Feb 2011 | *Tools | Contributor(s): Leah Michelle Courtland, Chuck B Connor, Laura Connor, Costanza Bonadonna

The Tephra2 ash dispersion model run via a GUI designed for student use.

Ash Dispersal Forecast and Civil Aviation Workshop - Model Benchmark Document

15 Feb 2011 | Publications | Contributor(s): Costanza Bonadonna, Arnau Folch

One of the main objectives of the IAVCEI-WMO Ash dispersal forecast and civil aviation workshop was to investigate the variability of existing Volcanic Ash Transport and Dispersal Models (VATDM) in order to identify new improved strategies of dispersal forecasting, e.g. probability/ensemble...

Ash Dispersal Forecast and Civil Aviation Workshop - Consensual Document

15 Feb 2011 | Publications | Contributor(s): Costanza Bonadonna, Arnau Folch

As a result of the serious consequences of the 2010 Eyjafjallajökull eruption on civil aviation, more than 50 volcanologists, meteorologists, atmospheric dispersion modellers, and space and ground-based monitoring specialists from 12 different countries (including representatives from 6...

dWind

27 Jul 2010 | Offline Tools | Contributor(s): Seb Biass, Costanza Bonadonna

UPDATE: A new version of dWind is now available as part of the TephraProb package here: https://vhub.org/resources/4094It allows to download wind data from both the NOAA NCEP Reanalysis 1 and the ECMWF Era-Interim datasets and provides a variety of functions to plot and analyse wind...

Tephra2

20 Apr 2010 | *Tools | Contributor(s): Costanza Bonadonna, Laura Connor, Chuck B Connor, Leah Michelle Courtland

Tephra2 uses the advection diffusion equation to forecast tephra dispersion in a given location based on a user-defined set of eruptive conditions.