| DOI: | 10.1002/2015GL067494
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| 论文题名: | Reconstruction of landslide movements by inversion of 4-D electrical resistivity tomography monitoring data |
| 作者: | Wilkinson P.; Chambers J.; Uhlemann S.; Meldrum P.; Smith A.; Dixon N.; Loke M.H.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9398
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| EISSN: | 1944-9129
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| 出版年: | 2016
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| 卷: | 43, 期:3 | | 起始页码: | 1166
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| 结束页码: | 1174
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| 语种: | 英语
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| 英文关键词: | electrical resistivity tomography
; inverse theory
; landslides
; monitoring
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| Scopus关键词: | Electric conductivity
; Electrodes
; Image reconstruction
; Inverse problems
; Landslides
; Active landslides
; Electrical resistivity tomography
; Electrode spacing
; Inverse theory
; Landslide movements
; Resistivity changes
; Temporal resolution
; Tomographic inversion
; Monitoring
; accuracy assessment
; electrical resistivity
; electrode
; environmental monitoring
; four-dimensional modeling
; GPS
; inverse analysis
; landslide
; magnitude
; measurement method
; movement
; tomography
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| 英文摘要: | Reliable tomographic inversion of geoelectrical monitoring data from unstable slopes relies critically on knowing the electrode positions, which may move over time. We develop and present an innovative inverse method to recover movements in both surface directions from geoelectrical measurements made on a grid of monitoring electrodes. For the first time, we demonstrate this method using field data from an active landslide to recover sequences of movement over timescales of days to years. Comparison with GPS measurements demonstrated an accuracy of within 10% of the electrode spacing, sufficient to correct the majority of artifacts that would occur in subsequent image reconstructions if incorrect positions are used. Over short timescales where the corresponding subsurface resistivity changes were smaller, the constraints could be relaxed and an order-of-magnitude better accuracy was achievable. This enabled the onset and acceleration of landslide activity to be detected with a temporal resolution of a few days. © 2016. The Authors. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84975730971&doi=10.1002%2f2015GL067494&partnerID=40&md5=4b641b7f793c91888c0e1c766454fe99
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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/10361
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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: | Environmental Science Centre, British Geological Survey, Nottingham, United Kingdom
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| Recommended Citation: | |
Wilkinson P.,Chambers J.,Uhlemann S.,et al. Reconstruction of landslide movements by inversion of 4-D electrical resistivity tomography monitoring data[J]. Geophysical Research Letters,2016-01-01,43(3).
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