학술논문

Operational tsunami modelling with TsunAWI – recent developments and applications
Document Type
article
Source
Natural Hazards and Earth System Sciences, Vol 13, Iss 6, Pp 1629-1642 (2013)
Subject
Environmental technology. Sanitary engineering
TD1-1066
Geography. Anthropology. Recreation
Environmental sciences
GE1-350
Geology
QE1-996.5
Language
English
ISSN
1561-8633
1684-9981
Abstract
In this article, the tsunami model TsunAWI (Alfred Wegener Institute) and its application for hindcasts, inundation studies, and the operation of the tsunami scenario repository for the Indonesian tsunami early warning system are presented. TsunAWI was developed in the framework of the German-Indonesian Tsunami Early Warning System (GITEWS) and simulates all stages of a tsunami from the origin and the propagation in the ocean to the arrival at the coast and the inundation on land. It solves the non-linear shallow water equations on an unstructured finite element grid that allows to change the resolution seamlessly between a coarse grid in the deep ocean and a fine representation of coastal structures. During the GITEWS project and the following maintenance phase, TsunAWI and a framework of pre- and postprocessing routines was developed step by step to provide fast computation of enhanced model physics and to deliver high quality results.