Extraction of Tsunami Damaged Areas Due to the 2010 Chile Earthquake Using Optical and SAR Data of ALOS

  • Ni Made Pertiwi Jaya Graduate School of Science and Engineering, Disaster Prevention System Engineering, Yamaguchi University, Ube, Yamaguchi 7558611, Japan
  • Fusanori Miura Regional Satellite Applications Center for Disaster Management (RSCD), Japan Aerospace Exploration Agency (JAXA), 4-1-1 Industrial Technology Institute Asutopia, Ube, Yamaguchi 7550195, Japan
DOI: https://doi.org/10.24843/ijeg.2018.v02.i02.p02

Abstract

Information about damage areas is important due to the large-scale disasters worldwide. In the last decade, both optical and SAR remote sensing were applied in many disaster researches, such as tsunami damage detection. In this study, the ALOS AVNIR-2 and PALSAR images are used to extract the damaged areas caused by the 2010 Chile earthquake. In the processing of ALOS/AVNIR-2, the inundation area was estimated based on the NDVI calculation and classification. Furthermore, damaged areas of the ALOS/PALSAR are extracted by integrating the AVNIR-2 image for water mask and the DEM image for elevation mask. The damaged area result of AVNIR-2 is 8.91 Km2 and for the PALSAR is 8.72 Km2 that is along the coastal areas. The image results showed a good agreement and corresponding area according to the institutional map of the inundation area. Future study in another area is needed in order to strengthen the processing method.

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Published
2018-12-01
How to Cite
JAYA, Ni Made Pertiwi; MIURA, Fusanori. Extraction of Tsunami Damaged Areas Due to the 2010 Chile Earthquake Using Optical and SAR Data of ALOS. International Journal of Environment and Geosciences, [S.l.], v. 2, n. 2, p. 66-75, dec. 2018. ISSN 2549-8878. Available at: <https://ojs.unud.ac.id/index.php/ijeg/article/view/49585>. Date accessed: 21 nov. 2024. doi: https://doi.org/10.24843/ijeg.2018.v02.i02.p02.
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Vol 2 No 2 (2018)
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