气候变化领域集成服务门户(CCPortal): Simple scaling of catastrophic landslide dynamics

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DOI	10.1126/science.1232887
	Simple scaling of catastrophic landslide dynamics
	Ekström G.; Stark C.P.
发表日期	2013
ISSN	0036-8075
起始页码	1416
结束页码	1419
卷号	339 期号:6126
英文摘要	Catastrophic landslides involve the acceleration and deceleration of millions of tons of rock and debris in response to the forces of gravity and dissipation. Their unpredictability and frequent location in remote areas have made observations of their dynamics rare. Through real-time detection and inverse modeling of teleseismic data, we show that landslide dynamics are primarily determined by the length scale of the source mass. When combined with geometric constraints from satellite imagery, the seismically determined landslide force histories yield estimates of landslide duration, momenta, potential energy loss, mass, and runout trajectory. Measurements of these dynamical properties for 29 teleseismogenic landslides are consistent with a simple acceleration model in which height drop and rupture depth scale with the length of the failing slope.
英文关键词	catastrophic event; debris flow; dissipation; gravity field; inverse analysis; landslide; real time; rock avalanche; satellite imagery; seismic data; slope failure; teleseismic wave; article; disaster; gravity; landslide; mechanical torsion; priority journal; torque
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243606
作者单位	Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964, United States
推荐引用方式 GB/T 7714	Ekström G.,Stark C.P.. Simple scaling of catastrophic landslide dynamics[J],2013,339(6126).
APA	Ekström G.,&Stark C.P..(2013).Simple scaling of catastrophic landslide dynamics.Science,339(6126).
MLA	Ekström G.,et al."Simple scaling of catastrophic landslide dynamics".Science 339.6126(2013).