About CSVL

Computational Seismology and Visualization Laboratory, CSVL

Research Group Name

Computational Seismology and Visualization Research Group

Research

Computational Seismology, Wave Propagation, Seismic Modeling and Inversion, GPR Exploration

EMAIL

hwchen@ncu.edu.tw

Dr

Dr.Chen How-Wei

TEL

03-4221757*65624

CSVL is mainly working on computational seismology related researches including (1) Deep structure imaging from data collected from both land and marine seismic surveys. Combining seismic exploration and earthquake dataset base on the view points of wave propagation phenomena and parallel computing for seismogenic and tectonic structure imaging. (2) Linear and non-linear scalar and vector wave propagation simulation using numerical finite-difference (FD), pseudo-spectral (PS) and spectral-element (SE) methods. The research involving practical problems like ground motion simulation and predictions, simulation and analysis of seismic data considering elastic, visco-elastic and poro-elastic responses in Taiwan and adjacent area. (3) 2-D and 3-D ground-penetrating radar (GPR, an electro-magnetic survey using GHz radar waves) for geotechnical engineering, exploration and data analysis researches including radar/EM wave simulation, analysis and imaging. The goal of using radar wave is mainly for imaging ultra-shallow rock formation, environmental impact monitoring and sedimentation structure. An additional effort is to develop, test and implement the leading geophysical exploration technologies including algorithm design for non-destructive detection and monitoring related to the environmental issues. (4) Numerical algorithm development for scalar and vector wavefield simulation and data analysis under parallel computing environment. To enhance the 3-D wave propagation and inversion on seismic and earthquake related scientific researches, utilization of the computing facilities from center for geophysical computing (GCC) of NCU; various massively parallel processor (MPP) machines in the National Center for High-Performance Computing (NCHC) and a PC-Cluster system in the department of earth science and geophysics institute.
Major scientific researches include data processing, modeling and inversion of: (1) marine OBS (ocean bottom seismograph) and MCS (multi-channel seismic) data collected from wide-angle refraction and reflection (WARR) offshore surveys; (2) onshore vibroseis and explosion data collected from seismic surveys and dataset provided from Chinese Petroleum Company (CPC); (3) short period and strong motion data simulation and prediction studies for Taipei basin, whole Taiwan island and adjacent area; (4) participate the gas-hydrate evaluation and exploration project with Central Geological Survey, Ministry of Economic Affairs (CGS-MOEA); (5) data collected from TAICRUST (1995) TAIGER (2006-2009) and TDCP projects.