Abstract
Abstract. In the framework of the German Indonesian Tsunami Early Warning System (GITEWS) the assessment of tsunami risk is an essential part of the overall activities. The scientific and technical approach for the tsunami risk assessment has been developed and the results are implemented in the national Indonesian Tsunami Warning Centre and are provided to the national and regional disaster management and spatial planning institutions in Indonesia. The paper explains the underlying concepts and applied methods and shows some of the results achieved in the GITEWS project (Rudloff et al., 2009). The tsunami risk assessment has been performed at an overview scale at sub-national level covering the coastal areas of southern Sumatra, Java and Bali and also on a detailed scale in three pilot areas. The results are provided as thematic maps and GIS information layers for the national and regional planning institutions. From the analyses key parameters of tsunami risk are derived, which are integrated and stored in the decision support system of the national Indonesian Early Warning Centre. Moreover, technical descriptions and guidelines were elaborated to explain the developed approach, to allow future updates of the results and the further development of the methodologies, and to enable the local authorities to conduct tsunami risk assessment by using their own resources.
Highlights
In response to the disastrous tsunami event on 26 December 2004 and to support the implementation of a reliable tsunami early warning system (TEWS) in the Indian Ocean, Germany offered its technical support for the development and installation of a TEWS at the UN World Conference on Disaster Reduction in Kobe in January 2005
The results are presented for the sub-national level analyses covering the coastal areas of southern Sumatra, Java and Bali and as well as for the detailed analyses in three pilot areas. Key parameters from this analysis are integrated in the decision support system of the Indonesian Early Warning Centre
The broad-scale assessments are based on data available from topographic maps and national statistical data, whereas the assessments in the pilot areas are based on detailed data acquisitions from in-situ measurements and remote sensing data
Summary
In response to the disastrous tsunami event on 26 December 2004 and to support the implementation of a reliable tsunami early warning system (TEWS) in the Indian Ocean, Germany offered its technical support for the development and installation of a TEWS at the UN World Conference on Disaster Reduction in Kobe in January 2005. The knowledge about the geographical areas, which are prone to natural hazards, the exposed elements, their susceptibility, coping and adaptation mechanisms is a precondition for the development of people-centred warning structures, evacuation planning, emergency relief and recovery policy planning (e.g. Turner et al, 2003; Birkmann, 2006; Wisner et al, 2004). 4 the results are presented for the sub-national level analyses covering the coastal areas of southern Sumatra, Java and Bali and as well as for the detailed analyses in three pilot areas Key parameters from this analysis are integrated in the decision support system of the Indonesian Early Warning Centre.
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