PS-InSAR for large-scale subsidence estimation in central Taiwan - Preliminary study for future project

Chia Hsiang Yang, Jaan-Rong Tsay, Po Tsung Su

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study is a preliminary PS-InSAR research for future project in monitoring subsidence by using SAR image acquired by advanced radar satellite. In this paper, PS-InSAR with ALOS PALSAR image is used to evaluate the large-scale surface displacement in central Taiwan mostly covered by vegetation and mountains. The PS-InSAR result is analyzed and then evaluated by comparing with precise leveling data. Both of the displacement patterns are similar to each other. The statistic figure derived from the absolute differences in vertical displacement velocity (DV) vectors on 200 PSs and 200 benchmarks shows that the mean is 1.4cm/year, the minimum is 0.0cm/year, the maximum is 4.5 cm /year and the standard deviation is 1.4 cm /year. The conclusion infers that monitoring large-scale subsidence in central Taiwan by using PS-InSAR is feasible and applicable, and it has a good potential to be realized to a national-level regular project.

Original languageEnglish
Title of host publication34th Asian Conference on Remote Sensing 2013, ACRS 2013
PublisherAsian Association on Remote Sensing
Pages963-970
Number of pages8
ISBN (Print)9781629939100
Publication statusPublished - 2013 Jan 1
Event34th Asian Conference on Remote Sensing 2013, ACRS 2013 - Bali, Indonesia
Duration: 2013 Oct 202013 Oct 24

Publication series

Name34th Asian Conference on Remote Sensing 2013, ACRS 2013
Volume2

Other

Other34th Asian Conference on Remote Sensing 2013, ACRS 2013
CountryIndonesia
CityBali
Period13-10-2013-10-24

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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