Temporal analysis of land deformation on erupted mud volcano in sidoarjo, indonesia using DInSAR technique

Differential synthetic aperture radar interferometry (DInSAR) is a technique useful for accurately detecting the ground displacement or land deformation in the antenna line-of-sight (slant- range) direction using synthetic aperture radar (SAR) data taken at two separate acquisition times or two different observation positions. This technique has been applied in many applications such as earthquake, landslide and volcano hazard [1][2]. The D-InSAR method is complementary to ground-based methods such as leveling and global positioning system (GPS) measurements, yielding information in a wide coverage area even when the area is inaccessible [3]. The area studied in this paper is in Sidoarjo District, East Java, Indonesia. Since May 2006, hot volcanic mud erupted in enormous volume in this area, which turn into national disaster. The ALOS-PALSAR data will be used to investigate the land deformation characteristic based on temporal analysis by using DInSAR technique, due to the enormous hot volcanic mud eruption in this area. In this study, the ability of DInSAR technique will be investigated in such rare disaster.