Deformasi Permukaan pada Manifestasi Gunung Lumpur di Wilayah Cekungan Jawa Timur dari Pengolahan Data SAR menggunakan Metode PS-InSAR

Surface Deformation on Mud Mountain Manifestations in the East Java Basin from SAR Data Processing the PS-InSAR Method Abstract: This study presents the results of the Permanent Scatterer Interferometric SAR (PS-InSAR) processing technique, which aims to analyze the pattern and value of surface deformation due to mud volcano manifestations. Using the PS-InSAR method, the deformation identified from processing time-series data on the ALOS PALSAR 1 L-band SAR Image in 2007-2009 and C-band Sentinel 1A 2015-2019 can reach the accuracy of millimeters. The results also showed that the 2007-2009 data processing could not be used as deformation information. It is because the minimum number of images required for the PS-InSAR method was not fulfilled. The 2015-2019 data processing illustrates the deformation patterns and values on the mud volcano manifestation locations. The Sidoarjo Mud Volcano experience uplift with an average value of 5.46 mm/year. The Gununganyar Mud Volcano experienced average uplift of 1.71 mm/year and a subsidence of 7.08 mm/year. The majority of the Kalanganyar Mud Volcano experienced average subsidence of 0.99 mm/year. The Wringianom Mud Volcano experienced average subsidence of 3.37 mm/year, and the majority of Bujhel Tasek Bini and Pria Mud Volcano has average subsidence of 2.88 mm/year. This study's results can be useful for consideration in development activities or construction around the mud volcanoes manifestation in East Java Province.