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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan INTERNATIONAL JOURNAL OF ENVIRONMENT AND GEOSCIENCES
Ni Made Pertiwi Jaya
Universitas Udayana
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science

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Journal : INTERNATIONAL JOURNAL OF ENVIRONMENT AND GEOSCIENCES

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Extraction of Tsunami Damaged Areas Due to the 2010 Chile Earthquake Using Optical and SAR Data of ALOS Ni Made Pertiwi Jaya; Fusanori Miura
International Journal of Environment and Geosciences Vol 2 No 2 (2018)
Publisher : Graduate Study of Environmental Sciences, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 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.
Co-Authors Daniel Rizal Mahendra Debora Sofia Fransiska Hutagalung Fusanori Miura I Gede Andy Andika Parahita I Gusti Agung Gede Wiranata Baskhara Ida Ayu Rai Widhiawati Kadek Diana Harmayani Ngk. Gd. A. Khrisna Wiryananda Ni Nyoman Dewi Supriyani