Joint Inversion of Geodetic Observations and Relative Weighting-The 1999 M-w 7.6 Chi-Chi Earthquake Revisited

doi:10.3390/rs12193125

ISL OpenIR > 盐湖地质与环境实验室

	Joint Inversion of Geodetic Observations and Relative Weighting-The 1999 M-w 7.6 Chi-Chi Earthquake Revisited
	Roger, Marine; Li, Zhenhong; Clarke, Peter; Song, Chuang; Hu, Jyr-Ching; Feng, Wanpeng; Yi, Lei
第一作者	Roger, Marine
	2020-10
发表期刊	REMOTE SENSING
卷号	12 期号:19
摘要	The Mw 7.6 Chi-Chi earthquake struck central western Taiwan in 1999. The rupture was complex with several dislocations along the 100-km long Chelungpu thrust fault. Revisiting this earthquake is a challenge, as the precision and coverage of the data sets available are quite poor. Furthermore, the topographic and vegetation coverage complexity of the area prevents coherent radar images. In this paper, radar and optical images, and terrestrial geodetic measurements, were utilised to study the fault. The Particle Swarm Optimization and Okada Inversion (PSOKINV) geodetic inversion package was used with the generalized Akaike's Bayesian Information Criterion (gABIC) to precisely determine the slip distribution and relative weighting of datasets. Differences in results using the data sets jointly or separately (e.g., under-estimation due to InSAR, inconsistencies in SPOT offsets, smoother slip distribution with gABIC weighting) are observable. Most of the energy was released in the northern part of the fault, where the strike veers toward the east, and mainly at depths less than 4 km. The PSOKINV-gABIC approach is viable for the study of complicated cases such as the Chi-Chi earthquake and can significantly benefit the weight determination and physical realism of the fault geometry.
DOI	10.3390/rs12193125
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/33989
专题	盐湖地质与环境实验室中国科学院青海盐湖研究所
推荐引用方式 GB/T 7714	Roger, Marine,Li, Zhenhong,Clarke, Peter,et al. Joint Inversion of Geodetic Observations and Relative Weighting-The 1999 M-w 7.6 Chi-Chi Earthquake Revisited[J]. REMOTE SENSING,2020,12(19).
APA	Roger, Marine.,Li, Zhenhong.,Clarke, Peter.,Song, Chuang.,Hu, Jyr-Ching.,...&Yi, Lei.(2020).Joint Inversion of Geodetic Observations and Relative Weighting-The 1999 M-w 7.6 Chi-Chi Earthquake Revisited.REMOTE SENSING,12(19).
MLA	Roger, Marine,et al."Joint Inversion of Geodetic Observations and Relative Weighting-The 1999 M-w 7.6 Chi-Chi Earthquake Revisited".REMOTE SENSING 12.19(2020).

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