气候变化领域集成服务门户(CCPortal): Coseismic Uplift of the 1999 Mw7.6 Chi-Chi Earthquake and Implication to Topographic Change in Frontal Mountain Belts

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DOI	10.1029/2020GL088947
	Coseismic Uplift of the 1999 Mw7.6 Chi-Chi Earthquake and Implication to Topographic Change in Frontal Mountain Belts
	Chuang R.Y.; Lu C.H.; Yang C.J.; Lin Y.S.; Lee T.Y.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	Large dip-slip earthquakes have a major contribution to mountain building while earthquake-induced landslides lower mountains simultaneously. The amount of the coseismic uplift and landslides may dominate long-term mountain evolution. However, how earthquakes contribute to mountain evolution through coseismic uplift and landslides is less constrained in real cases. We present the regional coseismic uplift of the 1999 Mw7.6 Chi-Chi earthquake by using synthetic aperture radar (SAR) images and GPS. The coseismic uplift pattern is consistent with field observations showing increasing movement to the north with ~8 m of uplift toward the northern end. We estimated uplifted rock volume of 2.60 ± 1.09 km3, which is five times greater than the coseismic landslide volume. Intense erosion of the Taiwan orogen may erode elevated rocks rapidly, but the uplift and landslide distributions do not match and correlate more inversely, suggesting the frontal orogenic topography should be increased rather than annulled over earthquake cycles. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Landforms; Landslides; Synthetic aperture radar; Topography; Co-seismic uplifts; Earthquake cycles; Earthquake-induced landslides; Field observations; Landslide distributions; Mountain building; Synthetic aperture radar (SAR) images; Topographic changes; Earthquakes; coseismic process; earthquake event; orogenic belt; radar imagery; submarine landslide; synthetic aperture radar; topographic effect; topography; uplift; Chichi; Taiwan
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170053
作者单位	Department of Geography, National Taiwan University, Taipei, Taiwan; NTU Research Center for Future Earth, Taipei, Taiwan; Department of Geography, National Taiwan Normal University, Taipei, Taiwan
推荐引用方式 GB/T 7714	Chuang R.Y.,Lu C.H.,Yang C.J.,et al. Coseismic Uplift of the 1999 Mw7.6 Chi-Chi Earthquake and Implication to Topographic Change in Frontal Mountain Belts[J],2020,47(15).
APA	Chuang R.Y.,Lu C.H.,Yang C.J.,Lin Y.S.,&Lee T.Y..(2020).Coseismic Uplift of the 1999 Mw7.6 Chi-Chi Earthquake and Implication to Topographic Change in Frontal Mountain Belts.Geophysical Research Letters,47(15).
MLA	Chuang R.Y.,et al."Coseismic Uplift of the 1999 Mw7.6 Chi-Chi Earthquake and Implication to Topographic Change in Frontal Mountain Belts".Geophysical Research Letters 47.15(2020).