Tsunami Simulation for the German-Indonesian Tsunami Early Warning System
Simulation plays an integrating part in most current Tsunami Early Warning Systems (TEWS). In particular in the newly developed German-Indonesian Tsunami Early Warning System (GITEWS), where a qualified warning is aimed for only a few minutes after the rupture, simulation is crucial for assimilating scarcely available data into a situation assessment. Simulation products are also used for preparedness and mitigation measures. Inundation scenarios are used for planning purposes on a local level. These diverse applications are supported by the simulation software TsunAWI, developed by Alfred-Wegener-Institute's tsunami modeling group, where the author served until recently. The unstructured mesh finite-element code shows superior behavior in complex geometries, by being capable of computing the large scale wave propagation phenomenon on relatively coarse meshes, while representing near- and on-shore phenomena locally refined and accurate in a seamless way. Tsunami scenarios are taken as the basis for a quick and robust analog multi-sensor assimilation method to forecast wave heights and arrival times at the coast.
https://www.munich-geocenter.org/events/seminars/lunchtime-seminar-4/tsunami-simulation-for-the-german-indonesian
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Tsunami Simulation for the German-Indonesian Tsunami Early Warning System
Abstract
Simulation plays an integrating part in most current Tsunami Early Warning Systems (TEWS). In particular in the newly developed German-Indonesian Tsunami Early Warning System (GITEWS), where a qualified warning is aimed for only a few minutes after the rupture, simulation is crucial for assimilating scarcely available data into a situation assessment. Simulation products are also used for preparedness and mitigation measures. Inundation scenarios are used for planning purposes on a local level.
These diverse applications are supported by the simulation software TsunAWI, developed by Alfred-Wegener-Institute's tsunami modeling group, where the author served until recently. The unstructured mesh finite-element code shows superior behavior in complex geometries, by being capable of computing the large scale wave propagation phenomenon on relatively coarse meshes, while representing near- and on-shore phenomena locally refined and accurate in a seamless way. Tsunami scenarios are taken as the basis for a quick and robust analog multi-sensor assimilation method to forecast wave heights and arrival times at the coast.
