The Evaluation of Eruption Induced Sediment Related Disasters using Satellite Remote Sensing - Applications for Emergency Response

SAR imagery back scattering intensity data for two case studies, involving the small eruption of Sakurajima volcano, Japan in February 2008 and the large eruption of Chaitén volcano, Chile in May 2008 are used to detect volcanically disturbed areas. From this, a method of predicting or mitigating vo...

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Bibliographic Details
Published in:International Journal of Erosion Control Engineering 2010, Vol.3(1), pp.34-42
Main Authors: NAKANO, Youko, YAMAKOSHI, Takao, SHIMIZU, Takeshi, TAMURA, Keiji, DOSHIDA, Shoji
Format: Article
Language:English
Subjects:
Disasters
Emergency procedures
Erosion control
Imagery
Scattering
Sediments
Synthetic aperture radar
Volcanic ash
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Summary:SAR imagery back scattering intensity data for two case studies, involving the small eruption of Sakurajima volcano, Japan in February 2008 and the large eruption of Chaitén volcano, Chile in May 2008 are used to detect volcanically disturbed areas. From this, a method of predicting or mitigating volcanically-induced sediment disasters is proposed. The results indicate the following points: 1) The areas disturbed by the volcanic eruption, such as by pyroclastic flow or lahars, can be identified from SAR images. 2) In both study areas, volcanic ash fall areas were not visible in the SAR images. 3) SAR imagery back scattering intensity data can be used to perform preliminary scans in emergency procedures, aiding the prediction and mitigation of volcanic eruption-induced sediment disasters.
ISSN:1882-6547
1882-6547
DOI:10.13101/ijece.3.34