Analysis of Faster-Than-Real-Time (FTRT) Tsunami Simulations for the Spanish Tsunami Warning System for the Atlantic
Real-time local tsunami warnings embody uncertainty from unknowns in the source definition within the first minutes after the tsunami generates. In general, Tsunami Warning Systems (TWS) provide a quick estimate for tsunami action from deterministic simulations of a single event. In this study, vari...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | GeoHazards |
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| Online Access: | https://www.mdpi.com/2624-795X/3/3/19 |
| _version_ | 1797487913739485184 |
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| author | Beatriz Gaite Jorge Macías Juan Vicente Cantavella Carlos Sánchez-Linares Carlos González Luis Carlos Puertas |
| author_facet | Beatriz Gaite Jorge Macías Juan Vicente Cantavella Carlos Sánchez-Linares Carlos González Luis Carlos Puertas |
| author_sort | Beatriz Gaite |
| collection | DOAJ |
| description | Real-time local tsunami warnings embody uncertainty from unknowns in the source definition within the first minutes after the tsunami generates. In general, Tsunami Warning Systems (TWS) provide a quick estimate for tsunami action from deterministic simulations of a single event. In this study, variability in tsunami source parameters has been included by running 135 tsunami simulations; besides this, four different computational domains in the northeastern Atlantic ocean have been considered, resulting in 540 simulations associated with a single event. This was done for tsunamis generated by earthquakes in the Gulf of Cadiz with impact in the western Iberian peninsula and the Canary Islands. A first answer is provided after one minute, and 7 min are required to perform all the simulations in the four computational domains. The fast computation allows alert levels all along the coast to be incorporated into the Spanish National Tsunami Early Warning System. The main findings are that the use of a set of scenarios that account for the uncertainty in source parameters can produce higher tsunami warnings in certain coastal areas than those obtained from a single deterministic reference scenario. Therefore, this work shows that considering uncertainties in tsunami source parameters helps to avoid possible tsunami warning level underestimations. Furthermore, this study demonstrates that this is possible to do in real time in an actual TWS with the use of high-performance computing resources. |
| first_indexed | 2024-03-09T23:55:34Z |
| format | Article |
| id | doaj.art-844c6121c2994e5d85341eef589792fe |
| institution | Directory Open Access Journal |
| issn | 2624-795X |
| language | English |
| last_indexed | 2024-03-09T23:55:34Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | GeoHazards |
| spelling | doaj.art-844c6121c2994e5d85341eef589792fe2023-11-23T16:26:24ZengMDPI AGGeoHazards2624-795X2022-07-013337139410.3390/geohazards3030019Analysis of Faster-Than-Real-Time (FTRT) Tsunami Simulations for the Spanish Tsunami Warning System for the AtlanticBeatriz Gaite0Jorge Macías1Juan Vicente Cantavella2Carlos Sánchez-Linares3Carlos González4Luis Carlos Puertas5National Geographic Institute of Spain (IGN), E-28003 Madrid, SpainDepartamento de Análisis Matemático, Estadística e Investigación Operativa y Matemática Aplicada, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, 29010 Málaga, SpainNational Geographic Institute of Spain (IGN), E-28003 Madrid, SpainDepartamento de Análisis Matemático, Estadística e Investigación Operativa y Matemática Aplicada, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, 29010 Málaga, SpainNational Geographic Institute of Spain (IGN), E-28003 Madrid, SpainNational Geographic Institute of Spain (IGN), E-28003 Madrid, SpainReal-time local tsunami warnings embody uncertainty from unknowns in the source definition within the first minutes after the tsunami generates. In general, Tsunami Warning Systems (TWS) provide a quick estimate for tsunami action from deterministic simulations of a single event. In this study, variability in tsunami source parameters has been included by running 135 tsunami simulations; besides this, four different computational domains in the northeastern Atlantic ocean have been considered, resulting in 540 simulations associated with a single event. This was done for tsunamis generated by earthquakes in the Gulf of Cadiz with impact in the western Iberian peninsula and the Canary Islands. A first answer is provided after one minute, and 7 min are required to perform all the simulations in the four computational domains. The fast computation allows alert levels all along the coast to be incorporated into the Spanish National Tsunami Early Warning System. The main findings are that the use of a set of scenarios that account for the uncertainty in source parameters can produce higher tsunami warnings in certain coastal areas than those obtained from a single deterministic reference scenario. Therefore, this work shows that considering uncertainties in tsunami source parameters helps to avoid possible tsunami warning level underestimations. Furthermore, this study demonstrates that this is possible to do in real time in an actual TWS with the use of high-performance computing resources.https://www.mdpi.com/2624-795X/3/3/19tsunami simulationtsunami warning systemhigh-performance computingreal-time tsunami warning |
| spellingShingle | Beatriz Gaite Jorge Macías Juan Vicente Cantavella Carlos Sánchez-Linares Carlos González Luis Carlos Puertas Analysis of Faster-Than-Real-Time (FTRT) Tsunami Simulations for the Spanish Tsunami Warning System for the Atlantic GeoHazards tsunami simulation tsunami warning system high-performance computing real-time tsunami warning |
| title | Analysis of Faster-Than-Real-Time (FTRT) Tsunami Simulations for the Spanish Tsunami Warning System for the Atlantic |
| title_full | Analysis of Faster-Than-Real-Time (FTRT) Tsunami Simulations for the Spanish Tsunami Warning System for the Atlantic |
| title_fullStr | Analysis of Faster-Than-Real-Time (FTRT) Tsunami Simulations for the Spanish Tsunami Warning System for the Atlantic |
| title_full_unstemmed | Analysis of Faster-Than-Real-Time (FTRT) Tsunami Simulations for the Spanish Tsunami Warning System for the Atlantic |
| title_short | Analysis of Faster-Than-Real-Time (FTRT) Tsunami Simulations for the Spanish Tsunami Warning System for the Atlantic |
| title_sort | analysis of faster than real time ftrt tsunami simulations for the spanish tsunami warning system for the atlantic |
| topic | tsunami simulation tsunami warning system high-performance computing real-time tsunami warning |
| url | https://www.mdpi.com/2624-795X/3/3/19 |
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