DOI: | 10.1002/2014GL062688
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论文题名: | Landslide subsurface slip geometry inferred from 3-D surface displacement fields |
作者: | Aryal A.; Brooks B.A.; Reid M.E.
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刊名: | Geophysical Research Letters
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ISSN: | 0094-8892
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EISSN: | 1944-8623
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出版年: | 2015
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卷: | 42, 期:5 | 起始页码: | 1411
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结束页码: | 1417
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语种: | 英语
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英文关键词: | inverse methods
; landslide slip surface
; lidar
; terrestrial laser scanner
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Scopus关键词: | Geometry
; Inverse problems
; Laser applications
; Optical radar
; Scanning
; Surface measurement
; Surveying instruments
; Balanced cross sections
; Elastic dislocation models
; Ground displacement
; In-situ observations
; Inverse methods
; Slip surfaces
; Surface displacement
; Terrestrial laser scanners
; Landslides
; deformation
; dislocation
; displacement
; ground motion
; landslide
; lidar
; slip
; subsurface flow
; three-dimensional modeling
; Cleveland [England]
; England
; United Kingdom
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英文摘要: | The stability of many large landslides is determined in part by deformation along buried, often inaccessible, slip surfaces. Factors such as infiltrating rainfall on the slip surface lead to stability changes. Yet characterizing the depth and shape of this slip surface is challenging. Here we examine the hypothesis that the subsurface slip geometry can be constrained by ground surface displacements in concert with two, mechanically distinct, forward models. We estimate a 3-D ground displacement field for the slow-moving Cleveland Corral landslide in California using repeat terrestrial laser scanner data. We test the efficacy of two models to estimate slip depth and slip magnitude of the slide-a 2-D balanced cross-section method and an elastic dislocation model. The estimated slip surface depth using both methods matches in situ observations from shear rods installed in the slide within the ±0.45 m misfit indicating that these are valuable approaches for investigating landslide geometry and slip behavior. © 2015. American Geophysical Union. All Rights Reserved. |
URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925876744&doi=10.1002%2f2014GL062688&partnerID=40&md5=48d9c40fcdcf163089f64295a6342757
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Citation statistics: |
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资源类型: | 期刊论文
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标识符: | http://119.78.100.158/handle/2HF3EXSE/8508
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Appears in Collections: | 科学计划与规划 气候变化与战略
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作者单位: | School of Ocean and Earth Science and Technology, University of Hawai'i at Manoa, Honolulu, HI, United States
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Recommended Citation: |
Aryal A.,Brooks B.A.,Reid M.E.. Landslide subsurface slip geometry inferred from 3-D surface displacement fields[J]. Geophysical Research Letters,2015-01-01,42(5).
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