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Point Cloud Data   Bulk Download     opentopoID: OTLAS.082020.32610.1

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Collection Overview:

The San Andreas fault at Dry Lake Valley data set comprises high-resolution topography and an orthomosaic of part of the creeping central section of the San Andreas fault (SAF) at Dry Lake Valley, California, USA. The data set covers ~3 km of the SAF and ~2.7 km² area. The data were created using small UAS-derived low-altitude aerial photographs, Structure-from-Motion processing, and georeferencing from dGNSS onboard the sUAS and ground control points.

The motivation for producing the data set was to difference the topography against EarthScope lidar of the area collected ten years earlier, in 2007, to measure strain along and across strike of the fault (Scott et al., 2020). The study site was chosen because it is the location of a previous paleoseismology study (Toke et al., 2015), and creep-induced fracturing was mapped in detail at the location in 2014 and used to infer deformation rate localized on the fault (Scott et al., 2020).

For more information see: Scott, C., Bunds, M., Shirzaei, M., & Toke, N. (2020). Creep along the Central San Andreas Fault from Surface Fractures, Topographic Differencing, and InSAR. Journal of Geophysical Research: Solid Earth. https://doi.org/10.1029/2020JB019762

Dataset Acknowledgement: N/A - Acknowledgement Guidance

Dataset Citation: Bunds, M.P., Scott, C., Toké, N.A., Saldivar, J., Woolstenhulme, L., Phillips, J., Keck, M., Smith, S., and Ranney, M., 2020, High Resolution Topography of the Central San Andreas Fault at Dry Lake Valley, California, USA, distributed by OpenTopography. DOI: https://doi.org/10.5069/G91N7Z92. Accessed: 2023-10-02

Use License: CC BY 4.0

Dataset Keywords: San Andreas fault, aseismic creep, tectonic, scarp, structure from motion, SfM, sUAS, high resolution topography, point cloud, digital elevation model, topographic differencing, lidar

Survey Date: 10/27/2019 - 10/28/2019

Publication Date: 08/11/2020

Data Provider and Roles:
Collectors

• Arizona State University, School of Earth and Space Exploration
• Utah Valley University

Principal Investigator

• Michael Bunds - Utah Valley University

Author

• Chelsea Scott - Arizona State University, School of Earth and Space Exploration
• Michael Bunds - Utah Valley University

Total number of points: 1,191,514,616 pts

Area: 2.74 km²

Point Density: 434.86 pts/m²

Classifications:

Class 1 - Unclassified	134,035,495
Class 2 - Ground	1,057,479,121

Raster Resolution: 0.06 meter

Orthophoto Resolution: 0.03 meter

Coordinate System:
    Horizontal: UTM Zone 10N WGS84 Meters [EPSG: 32610]
    Vertical: WGS84 (Ellipsoid) Heights Meters

Units: meter

Survey Report: Reports

LAS Validation Data Report: Reports

Tile index in shapefile format: Download

Dataset Extent in KMZ format: Download

Dataset Spatial Bounds: North: 36.4773845603301°     South: 36.4544898238567°     East: -121.042853690312°     West: -121.069217607084°