High Resolution SFM Topography of the Central San Andreas Fault, California

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DOI: https://doi.org/10.5069/G91N7Z92
OT Collection ID: OT.082020.32610.1
OT Collection Name: High Resolution SFM Topography of the Central San Andreas Fault, California
Short Name: CA19_Bunds
Collection Platform: Structure from Motion / Photogrammetry
Metadata Download:
  • ISO 19115 (Data)
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    Point Cloud Data   Bulk Download     opentopoID: OTLAS.082020.32610.1

    Raster Data   Bulk Download     opentopoID: OTSDEM.082020.32610.1
    Collection Overview: ASU logo UVU logo

    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 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: 2022-11-29

    Dataset Acknowledgement: N/A - Acknowledgement Guidance

    Use License: Not Provided

    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 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 - Unclassified134,035,495
        Class 2 - Ground1,057,479,121

    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: CA19_Bunds_metadata.pdf

    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°