INTEGRATED SATELLITE REMOTE SENSING AND GEOSPATIAL ANALYSIS FOR TSUNAMI RISK ASSESSMENT
| Autor: | Guntur, Fuad, Abu Bakar Sambah, Fusanori Miura |
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| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | International Journal of GEOMATE. 14 |
| ISSN: | 2186-2990 2186-2982 |
| DOI: | 10.21660/2018.44.7127 |
| Popis: | Tsunami risk is defined as a combination of the danger posed by tsunami hazard, thevulnerability of people to an event (exposure), and the probability of destructive tsunami or likelihood of thetsunami occurring. Tsunami risk is also defined as the mathematical calculation of tsunami vulnerability andtsunami hazard, and it can be assessed using a spatial multi-criteria. The study applied the combination of theelement at risk to assess tsunami risk area along the coastal area of East Java Indonesia off the Indian Ocean.Remote sensing approach followed by geospatial analysis into tsunami risk assessment along with the existingperspective evolving the role of Geographical Information System. The existing physical vulnerabilityparameter was analyzed and evaluated. All parameters in both tsunami vulnerability and tsunami riskassessment were analyzed through weighted overlay in geospatial analysis, in which the criteria’s weight wascalculated through Analytical Hierarchy Process. The results were provided as thematic maps of tsunamivulnerability and tsunami risk. Tsunami risk map described five classes of risk from very low to very highbased on the geospatial analysis. It described that coastal area with low elevation identified as high risks to thetsunami. The coastal area with high density of vegetation described a low level of tsunami risk. The existenceof river and another water canals along coastal area were also identified as important parameters in generatingtsunami risk map. Risk map highlights the coastal areas with a strong need for evacuation capacities, includingevacuation route and evacuation building. |
| Databáze: | OpenAIRE |
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