干旱区生态环境知识资源中心(Arid): Submeter Resolution Surface Rupture Topography From Legacy Aerial Photographs-A Test Case From the 1992 Landers Earthquake

Arid

DOI	10.1029/2019EA000651
	Submeter Resolution Surface Rupture Topography From Legacy Aerial Photographs-A Test Case From the 1992 Landers Earthquake
	Lajoie, Lia J.1; Nissen, Edwin 1,2; Johnson, Kendra L.3; Lajoie, Kenneth R.4
通讯作者	Lajoie, Lia J.
来源期刊	EARTH AND SPACE SCIENCE
EISSN	2333-5084
出版年	2020
卷号	7 期号:3
英文摘要	The 1992 M-w 7.3 Landers earthquake in the Mojave Desert (California) provided exceptional observations of surface faulting in a large, continental earthquake. The U. S. Geological Survey obtained nadir angle, overlapping aerial photographs at 1:6,000 scale for the entire similar to 85 km rupture length. Recent advances in Structure from Motion photogrammetry allow for archival photographic data sets such as these to be reprocessed, generating digital topography that can be reanalyzed quantitatively in a way that was not previously possible. In this proof-of-concept study, we generated a georectified, similar to 10 points/m(2) topographic point cloud over nearly the entire Landers rupture length and a higher-resolution similar to 40 points/m(2) point cloud over a smaller (similar to 5 km) rupture segment along the Emerson fault. We estimated the accuracy and explore the utility of our point cloud in two tests. First, we observe close geometric agreement (average closest point distance 2.1 cm and standard deviation 14.0 cm) between our point cloud and a 2008 terrestrial lidar survey of the Galway Lake Road site on the Emerson fault. Second, we made 173 vertical offset measurements within a small, structurally complex pull-apart basin, also on the Emerson fault, and find visual and statistical similarity with 21 local field measurements. These two tests demonstrate that point clouds generated from legacy aerial surveys and georeferenced using free Google Earth and National Elevation Dataset imagery are geometrically accurate and can be used to densify geomorphic offset measurements even along well-studied surface ruptures. Applied to other historical events, such measurements could provide new insights into earthquake rupture processes.
类型	Article
语种	英语
国家	USA ; Canada ; Italy
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000529137300008
WOS关键词	STRUCTURE-FROM-MOTION ; STRIKE-SLIP FAULTS ; HECTOR-MINE ; ACTIVE TECTONICS ; EMERSON FAULT ; SHEAR ZONE ; NEAR-FIELD ; CALIFORNIA ; DEFORMATION ; LIDAR
WOS类目	Astronomy & Astrophysics ; Geosciences, Multidisciplinary
WOS研究方向	Astronomy & Astrophysics ; Geology
来源机构	United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318865
作者单位	1.Colorado Sch Mines, Dept Geophys, Golden, CO 80401 USA; 2.Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC, Canada; 3.Global Earthquake Model, Pavia, Italy; 4.US Geol Survey, 345 Middlefield Rd, Menlo Pk, CA 94025 USA
推荐引用方式 GB/T 7714	Lajoie, Lia J.,Nissen, Edwin,Johnson, Kendra L.,et al. Submeter Resolution Surface Rupture Topography From Legacy Aerial Photographs-A Test Case From the 1992 Landers Earthquake[J]. United States Geological Survey,2020,7(3).
APA	Lajoie, Lia J.,Nissen, Edwin,Johnson, Kendra L.,&Lajoie, Kenneth R..(2020).Submeter Resolution Surface Rupture Topography From Legacy Aerial Photographs-A Test Case From the 1992 Landers Earthquake.EARTH AND SPACE SCIENCE,7(3).
MLA	Lajoie, Lia J.,et al."Submeter Resolution Surface Rupture Topography From Legacy Aerial Photographs-A Test Case From the 1992 Landers Earthquake".EARTH AND SPACE SCIENCE 7.3(2020).