SAR analysis for the 2011 eruption of Shinmoe-dake, Japan

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.