SAR analysis for the 2011 eruption of Shinmoe-dake, Japan
Conference: EUSAR 2014 - 10th European Conference on Synthetic Aperture Radar
06/03/2014 - 06/05/2014 at Berlin, Germany
Proceedings: EUSAR 2014
Pages: 3Language: englishTyp: PDF
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Authors:
Ozawa, Taku; Miyagi, Yousuke (National Research Institute for Earth Science and Disaster Prevention, Japan)
Abstract:
Concentrated SAR observation, especially by PALSAR, were carried out in the 2011 eruption of Shinmoe-dake eruption. We found pre-eruption inflation and co-eruption deflation in west-northwest of the crater, applying SAR interferometry to their images. Furthermore we investigated co-eruption deformation with higher temporal resolution using InSAR time-series analysis using multi-track SAR data. From SAR intensity images, lava effusion rate and amount were estimated. It was used in estimations of lava viscosity and of a relation between the amount of effusion and deflation of the deep source. ALOS-2 mission will enable us to provide more detailed information for an eruption activity.