THE APPLICATION OF DIFFERENT HIGH-PRECISION SURVEY METHODS IN THE INVESTIGATION OF THE M_S 8.0 WENCHUAN EARTHQUAKE SURFACE RUPTURES
Li Feng · Seismology and Geology · 2008
In the scientific investigation on the MS8.0 Wenchuan earthquake,different high-precision measuring instruments,such as electronic total station,GPS RTK,3D laser scanner,etc.were used widely to survey the landscape of co-seismic surface ruptures,and a wealth of information with the earthquake deformation were recorded timely,which ensured the quantitative analysis of related data.In this paper,we explored the characteristics of different means used in the micro-geomorphology survey and analyzed the advantages of different portfolios of the above-mentioned methods.Then,focusing on the examples,we discussed the advantages and limitations of three-dimensional laser scanner in recording and analyzing the information of seismic surface ruptures.Also we gave the prospects of the methods' application.