A growing structure near the deformation front in SW Taiwan as deduced from SAR interferometry and geodetic observation

Details A growing structure near the deformation front in SW Taiwan as deduced from SAR interferometry and geodetic observation A growing structure near the deformation front in SW Taiwan as deduced from SAR interferometry and geodetic observation

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3312305h&link_type=abstract

Geophysical Research Letters, Volume 33, Issue 12, CiteID L12305

Physics

Geodesy And Gravity: Tectonic Deformation (6924), Geodesy And Gravity: Satellite Geodesy: Results (6929, 7215, 7230, 7240), Geodesy And Gravity: Space Geodetic Surveys

Scientific paper

We apply the D-InSAR technique to monitor the active growing structure on the Tainan Tableland near the deformation front in SW Taiwan using ERS SAR images in the period of 1996-2000. Interferometric processing of six SAR images reveals the average slant range displacement (SRD) to be ~12.5 mm/yr, and it increases from the west edge of the Tainan Tableland and decreases across the Houchiali fault. The GPS campaign data indicate an average horizontal movement of 12 +/- 4 mm/yr in the direction of N44°W for the Tainan Tableland with respect to the western coastline. Five precise leveling surveys across the Tainan Tableland over two years show an uplift rate of ~14 mm/yr for the benchmarks on the Tableland. By combining the horizontal velocity of GPS data and the SRD of D-InSAR we transfer the SRD into vertical deformation and discuss the deformation pattern and seismic hazards in the Tainan area.

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