Now showing items 1-11 of 11

    • A Novel approach to reconstruct the plinian and co-ignimbrite phases of large eruptions - Campanian Ignimbrite 

      Marti, Alejandro; Folch, Arnau; Costa, Antonio; Engwell, Samantha (Barcelona Supercomputing Center, 2015-05-05)
      Conference report
      Open Access
      Reconstructing the volume and tephra dispersal from volcanic super-eruptions is necessary to assess the widespread impact of these massive events on climate, ecosystems and humans. Recent studies have demonstrated that ...
    • Anak Krakatau triggers volcanic freezer in the upper troposphere 

      Prata, Andrew T.; Folch, Arnau; Brenot, Hugues; Prata, A. J.; Climarelli, Corrado; Corradini, Stefano; Lapierre, Jeff; Costa, Antonio (Nature Research, 2020-02)
      Article
      Open Access
      Volcanic activity occurring in tropical moist atmospheres can promote deep convection and trigger volcanic thunderstorms. These phenomena, however, are rarely observed to last continuously for more than a day and so insights ...
    • Beyond eruptive scenarios: assessing tephra fallout hazard from Neapolitan volcanoes 

      Sandri, Laura; Costa, Antonio; Selva, Jacopo; Tonini, Roberto; Macedonio, Giovanni; Folch, Arnau; Sulpizio, Roberto (Nature Publishing Group, 2016-04-12)
      Article
      Open Access
      Assessment of volcanic hazards is necessary for risk mitigation. Typically, hazard assessment is based on one or a few, subjectively chosen representative eruptive scenarios, which use a specific combination of eruptive ...
    • Data assimilation of volcanic aerosol observations using FALL3D+PDAF 

      Mingari, Leonardo; Folch, Arnau; Prata, Andrew T.; Pardini, Federica; Macedonio, Giovanni; Costa, Antonio (Copernicus Publications, 2022-02)
      Article
      Open Access
      Modelling atmospheric dispersal of volcanic ash and aerosols is becoming increasingly valuable for assessing the potential impacts of explosive volcanic eruptions on buildings, air quality, and aviation. Management of ...
    • FALL3D-8.0: a computational model for atmospheric transport and deposition of particles, aerosols and radionuclides – Part 2: Model validation 

      Prata, Andrew T.; Mingari, Leonardo; Folch, Arnau; Macedonio, Giovanni; Costa, Antonio (Copernicus Publications, 2021-01)
      Article
      Open Access
      This paper presents model validation results for the latest version release of the FALL3D atmospheric transport model. The code has been redesigned from scratch to incorporate different categories of species and to overcome ...
    • FPLUME-1.0: An integral volcanic plume model accounting for ash aggregation 

      Folch, Arnau; Costa, Antonio; Macedonio, Giovannin (EGU Journals, 2016-02-02)
      Article
      Open Access
      Eruption source parameters (ESP) characterizing volcanic eruption plumes are crucial inputs for atmospheric tephra dispersal models, used for hazard assessment and risk mitigation. We present FPLUME-1.0, a steady-state 1-D ...
    • Long-term hazard assessment of explosive eruptions at Jan Mayen (Norway) and implications for air traffic in the North Atlantic 

      Titos, Manuel; Martínez Montesinos, Beatriz; Barsotti, Sara; Sandri, Laura; Folch, Arnau; Mingari, Leonardo; Macedonio, Giovanni; Costa, Antonio (Copernicus Publications, 2022-01)
      Article
      Open Access
      Volcanic eruptions are among the most jeopardizing natural events due to their potential impacts on life, assets, and the environment. In particular, atmospheric dispersal of volcanic tephra and aerosols during explosive ...
    • Reconstructing the plinian and co-ignimbrite sources of large volcanic eruptions: A novel approach for the Campanian Ignimbrite 

      Marti, Alejandro; Folch, Arnau; Costa, Antonio; Engwell, Samantha (Nature Publishing Group, 2016-02-17)
      Article
      Open Access
      The 39 ka Campanian Ignimbrite (CI) super-eruption was the largest volcanic eruption of the past 200 ka in Europe. Tephra deposits indicate two distinct plume forming phases, Plinian and co-ignimbrite, characteristic of ...
    • Results of the eruptive column model inter-comparison study 

      Costa, Antonio; Suzuki, Yujiro J.; Cerminara, Matteo; Devenish, Ben J.; Ongaro, Tomaso E.; Herzog, Michael; van Eaton, Alexa R.; Denby, L. C.; Bursik, Marcus I.; Vitturi, M. de' Michieli; Engwell, Samantha L.; Neri, Augusto; Barsotti, Sara; Folch, Arnau; Macedonio, Giovanni V.; Girault, Frédéric; Carazzo, Guillaume; Tait, Steve R.; Kaminski, Édouard; Mastin, Larry G.; Woodhouse, Mark J.; Phillips, Jeremy C.; Hogg, Andrew J. C.; Degruyter, Wim; Bonadonna, Constanza (Elsevier, 2016-02-06)
      Article
      Open Access
      To improve our understanding of the physics of volcanic plumes and their interaction with the atmosphere, increasingly sophisticated numerical models of eruptive columns have been developed by a growing number of research ...
    • Stochastic modeling of explosive eruptive events at Galeras Volcano, Colombia 

      Sandri, Laura; Garcia, Alexander; Costa, Antonio; Guerrero Lopez, Alejandra; Córdoba, Gustavo (Frontiers, 2021)
      Article
      Open Access
      A statistical analysis of explosive eruptive events can give important clues on the behavior of a volcano for both the time- and size-domains, producing crucial information for hazards assessment. In this paper, we analyze ...
    • Uncertainties in volcanic plume modeling: A parametric study using FPLUME 

      Macedonio, Giovanni; Costa, Antonio; Folch, Arnau (Elsevier, 2016-10-15)
      Article
      Open Access
      We carry out a parametric study in order to identify and quantify the effects of uncertainties on pivotal parameters controlling the dynamics of volcanic plumes. The study builds upon numerical simulations using FPLUME, ...