DOI: 10.1002/2014GL059919
论文题名: Optimization of legacy lidar data sets for measuring near-field earthquake displacements
作者: Glennie C.L. ; Hinojosa-Corona A. ; Nissen E. ; Kusari A. ; Oskin M.E. ; Arrowsmith J.R. ; Borsa A.
刊名: Geophysical Research Letters
ISSN: 0094-10051
EISSN: 1944-9782
出版年: 2014
卷: 41, 期: 10 起始页码: 3494
结束页码: 3501
语种: 英语
英文关键词: active tectonics
; earthquakes
; El Mayor-Cucapah
; LiDAR
Scopus关键词: Earthquakes
; Surface measurement
; Active tectonics
; Airborne Laser scanning
; El Mayor-Cucapah
; Lidar point clouds
; Near-field earthquakes
; Scanning mirror
; Surface displacement
; Three-dimensional displacements
; Optical radar
; data processing
; data set
; displacement
; earthquake event
; earthquake magnitude
; lidar
; optimization
; topographic mapping
英文摘要: Airborne lidar (light detection and ranging) topography, acquired before and after an earthquake, can provide an estimate of the coseismic surface displacement field by differencing the preevent and postevent lidar point clouds. However, estimated displacements can be contaminated by the presence of large systematic errors in either of the point clouds. We present three-dimensional displacements obtained by differencing airborne lidar point clouds collected before and after the El Mayor-Cucapah earthquake, a M w 7.2 earthquake that occurred in 2010. The original surface displacement estimates contained large, periodic artifacts caused by systematic errors in the preevent lidar data. Reprocessing the preevent data, detailed herein, removed a majority of these systematic errors that were largely due to misalignment between the scanning mirror and the outgoing laser beam. The methodology presented can be applied to other legacy airborne laser scanning data sets in order to improve change estimates from temporally spaced lidar acquisitions. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901384119&doi=10.1002%2f2014GL059919&partnerID=40&md5=9d34b23aed661e3a20f7803775c16ee7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7315
Appears in Collections: 气候减缓与适应
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作者单位: Department of Civil and Environmental Engineering, University of Houston, Houston, TX, United States
Recommended Citation:
Glennie C.L.,Hinojosa-Corona A.,Nissen E.,et al. Optimization of legacy lidar data sets for measuring near-field earthquake displacements[J]. Geophysical Research Letters,2014-01-01,41(10).