English
 
Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
 Local TagsRelease HistoryDetailsSummary
  Quantifying uncertainties in numerical simulations and gas hazard assessment of volcanic gas dispersion

Massaro, S., Costa, A., Stocchi, M., Dioguardi, F., Tamburello, G., Sandri, L., Selva, J., Folch, A., Macedonio, G., Viveiros, F., Vougioukalakis, G. (2023): Quantifying uncertainties in numerical simulations and gas hazard assessment of volcanic gas dispersion, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-0870

Item is

 

show all hide all

Basic

show hide
Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016609 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016609_2
Genre: Conference Paper

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Massaro, Silvia1, Author
Costa, Antonio1, Author
Stocchi, Manuel1, Author
Dioguardi, Fabio1, Author
Tamburello, Giancarlo1, Author
Sandri, Laura1, Author
Selva, Jacopo1, Author
Folch, Arnau1, Author
Macedonio, Giovanni1, Author
Viveiros, Fatima1, Author
Vougioukalakis, Georges1, Author
Affiliations:
1IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations, ou_5011304              

Content

show
hide
Free keywords: -
 Abstract: The emission of volcanic gases can occur during both eruptive and quiescent stages of volcanic activity, affecting air quality when the concentrations exceed species-specific thresholds. Quantitative studies of model validation are essential before applying a simulator for probabilistic volcanic hazard assessment. Here, we provide three examples of model validation aimed at testing the accuracy in providing realistic values of CO2 concentration, estimating the source gas fluxes using the concentration measurements through resolution of the inverse problem, and identifying potential hazardous gas dispersal scenarios. We selected three case study affected by a persistent diffusive and fumarolic degassing: i) La Solfatara crater, Campi Flegrei caldera, Italy, ii) Caldeiras da Ribeira Grande, São Miguel Island, Azores and iii) Stefanos crater, Nisyros Island, Greece. We used published and original CO2 flux data as input for numerical simulations run through VIGIL, an open-source workflow for parallel simulations and probabilistic output using two Eulerian models, which account for the passive and gravity-driven gas transport, respectively. Our results provided probabilistic CO2 concentration maps at 0.5-1.5 m from the ground in order to investigate the potential effects on human and animal health, and statistical tests aimed to infer the best scaling factor for gas flux in reaching hazardous gas concentrations. This kind of methodology has revelad the potential usefulness of the modeling in reproducing the order of magnitude of the observed degassing, therefore, such a testing should be the first logical step to be taken before applying a simulator to assess (gas) hazard in any other volcanic contexts.

Details

show
hide
Language(s): eng - English
 Dates: 2023
 Publication Status: Finally published
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.57757/IUGG23-0870
 Degree: -

Event

show
hide
Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Place of Event: Berlin
Start-/End Date: 2023-07-11 - 2023-07-20

Legal Case

show

Project information

show

Source 1

show
hide
Title: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
Source Genre: Proceedings
 Creator(s):
Affiliations:
Publ. Info: Potsdam : GFZ German Research Centre for Geosciences
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -