The tsunami scenario database of the Indonesia Tsunami Early Warning System (InaTEWS): Evolution of the coverage and the involved modeling approaches  


Authors / CoAuthors

Harig, S. | Immerz, A. | Weniza | Griffin, J. | Weber, B. | Babeyko, A. | Rakowsky, N. | Hartanto, D. | Handayani, T. | Weber, R.

Abstract

The present study reports on recent developments of the Indonesia Tsunami Early Warning System (InaTEWS), especially with respect to the tsunami modeling components used in that system. It is a dual system: firstly, InaTEWS operates a high-resolution scenario database pre-computed with the finite element model TsunAWI; running in parallel, the system also contains a supra real-time modeling component based on the GPU-parallelized linear long-wave model easyWave capable of dealing with events outside the database coverage. The evolution of the tsunami scenario database over time is covered in the first sections. Starting from the mere coverage of the Sunda Arc region, the current state contains scenarios in 15 fault zones. The study is augmented by an investigation of warning products used for early warning like the estimated wave height (EWH) and the estimated time of arrival (ETA). These quantities are determined by easyWave and TsunAWI with model specific approaches. Since the numerical setup of the models is very different, the extent of variations in warning products is investigated for a number of scenarios, where both pure database scenarios and applications to real events are considered.

Product Type

document

eCat Id

128606

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Commonwealth of Australia (Geoscience Australia)  
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
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Australia

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Keywords

theme.ANZRC Fields of Research.rdf
  • EARTH SCIENCES
( {1} )
  • Tsunami
( {1} )
  • Indonesia
( {1} )
  • early warning system
( {1} )
  • numerical modeling
( {1} )
  • scenario database
( {1} )
  • warning products
( {1} )
  • Hazard Response
( {1} )
  • Natural Hazards
( {1} )
( {1} )
  • Published_External

Publication Date

2019-05-09T09:00:00

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Australian Government Security ClassificationSystem    

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Creative Commons Attribution 4.0 International Licence    

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completed

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Journal Article

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notPlanned

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geoscientificInformation

Series Information

Pure and Applied Geophysics

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Not supplied

Parent Information

Extents

[-44.00, -9.00, 112.00, 154.00]

Reference System

Spatial Resolution

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