Long-term hazard assessment of explosive eruptions at Jan Mayen (Norway) and implications for air traffic in the North Atlantic
| Autor: | M. Titos, B. Martínez Montesinos, S. Barsotti, L. Sandri, A. Folch, L. Mingari, G. Macedonio, A. Costa |
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| Přispěvatelé: | Barcelona Supercomputing Center, European Commission, Folch, Arnau [0000-0002-0677-6366], Folch, Arnau |
| Rok vydání: | 2022 |
| Předmět: |
Simulations
QE1-996.5 Air navigation Jan Mayen Island Natural hazards Volcanology Geology Atmospheric aerosols Environmental technology. Sanitary engineering Environmental sciences Informàtica::Aplicacions de la informàtica::Aplicacions informàtiques a la física i l‘enginyeria [Àrees temàtiques de la UPC] Simulació per ordinador Air traffic Geography. Anthropology. Recreation General Earth and Planetary Sciences GE1-350 Erupcions volcàniques Volcanic eruptions TD1-1066 |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Natural Hazards and Earth System Sciences Digital.CSIC. Repositorio Institucional del CSIC instname Natural Hazards and Earth System Sciences, Vol 22, Pp 139-163 (2022) |
| ISSN: | 1684-9981 |
| DOI: | 10.5194/nhess-22-139-2022 |
| Popis: | 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 eruptions poses a serious threat to life and has significant consequences for infrastructures and global aviation safety. The volcanic island of Jan Mayen, located in the North Atlantic under trans-continental air traffic routes, is considered the northernmost active volcanic area in the world with at least five eruptive periods recorded during the last 200 years. However, quantitative hazard assessments on the possible consequences for the air traffic of a future ash-forming eruption at Jan Mayen are nonexistent. This study presents the first comprehensive long-term volcanic hazard assessment for the volcanic island of Jan Mayen in terms of ash dispersal and concentration at different flight levels. In order to delve into the characterization and modeling of that potential impact, a probabilistic approach based on merging a large number of numerical simulations is adopted, varying the volcano's eruption source parameters (ESPs) and meteorological scenario. Each ESP value is randomly sampled following a continuous probability density function (PDF) based on the Jan Mayen geological record. Over 20 years of meteorological data is considered in order to explore the natural variability associated with weather conditions and is used to run thousands of simulations of the ash dispersal model FALL3D on a 2 km resolution grid. The simulated scenarios are combined to produce probability maps of airborne ash concentration, arrival time, and persistence of unfavorable conditions at flight levels 50 and 250 (FL050 and FL250). The resulting maps can serve as an aid during the development of civil protection strategies, to decision-makers and aviation stakeholders, in assessing and preventing the potential impact of a future ash-rich eruption at Jan Mayen. This research has been supported by the European Commission's CORDIS (ChEESE (grant no. 823844)). |
| Databáze: | OpenAIRE |
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