LONG TERM CONTINUOUSLY DInSAR FOR VOLUME CHANGE ESTIMATION OF LAND DEFORMATION

نویسندگان

  • Josaphat Tetuko Sri Sumantyo
  • Masanobu Shimada
  • Hasanuddin Zainal Abidin
چکیده

In this research, a technique to estimate the volume change by using Differential Interferometric Synthetic Aperture Radar (DInSAR) is proposed to retrieve the volume change of long-term continuously land deformation (subsidence or uplift). This technique is employed to investigate subsidence of Bandung city, Indonesia to demonstrate the capability of this technique by assessing two Japanese L band Spaceborne SARs (JERS-1 SAR and ALOS PALSAR) in continuously periods of 1993-1997 and 2007-2008. This result shows the subsidence occurred concentrating seriously at industrial complexes and settlements of Bandung area. The result is confirmed by using 2000-2008 period of GPS observation data, statistical data of 1991-2008 published by The Indonesian Statistics Bureau (BPS), three campaigns of ground surveys to compiling the recent condition of buildings and other infrastructures, population, ground water level data and geological formation of this area. This research shows a capability of this technique to investigate the volume change caused by land deformation, especially subsidence.

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تاریخ انتشار 2009