Point clouds derived from satellite imagery, Weinan, China, 2013

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Dataset Information

This dataset contains a short section of the Weinan Fault with the river terraces of the Chishui river catchment. The scarps in the datasets are related to the 1556 Huaxian Earthquake in China. The point cloud data were derived via photogrammetric methods by Leica Photogrammetry Suite built in ERDAS Imagine from data acquired by Airbus Defence and Space (Pleiades stereo optical imagery).

opentopoID: OTDS.102023.32649.1
DOI: https://doi.org/10.5069/G93R0R3W
Platform: Structure from Motion / Photogrammetry
Data Format: Point Cloud
Dataset Acknowledgement: This work was funded by the Natural Environment Research Council and the Economic and Social Research Council of the UK, under Grant NE/J02001X/1 (Earthquakes without Frontiers), by a joint programme between NERC, ESRC, and the National Natural Science Foundation of China, under Grants NE/N012313/1 and NE/N01233X/1, and by NERC through its support for its Centre for the Observation and Modelling of Earthquakes, Volcanoes, and Tectonics. We also thank the Leverhulme trust for support through the EROICA Project RPG-2018-371.
Dataset Citation: Walker, R., Zhou, Y. (2023). Point clouds derived from satellite imagery, Weinan, China, 2013. Distributed by OpenTopography. https://doi.org/10.5069/G93R0R3W. Accessed: 2025-03-16
Survey Date: 12/30/2013
Survey Area: 106.17 km2
Publication Date: 10/06/2023
Total Number of Points: 108,866,980 pts
Point Density: 1.03 pts/m2
Coordinates System:
Horizontal: WGS 84 / UTM zone 49N [EPSG: 32649]

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Spatial Extent

Show Data Files

    Point Cloud
  File Name Size Points Area (m2) Density  
1     78442_points_utm49.laz     541.47 MB     108,866,980     106,165,814     1.03         File Metadata    
SpatialReference: 
COMPD_CS["unknown",PROJCS["WGS 84 / UTM zone 49N",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",111],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","32649"]],VERT_CS["IMAGINE GeoTIFF SupportERDAS IMAGINE 2020  16.6.0.1217Unable to match Vertical Coordinate System to a VerticalCSTypeGeoKey valueEllipsoid = WGS 84Datum = WGS 84",VERT_DATUM["unknown",2005],UNIT["metre",1.0,AUTHORITY["EPSG","9001"]],AXIS["Up",UP]]]

Geographic Coordinates (Lat, Lon, Elevation) - EPSG:4326
North-East (Lat, Lon, Elevation): (34.517434869456835, 109.70657277076425, 675.15)
South-West (Lat, Lon, Elevation): (34.41141481628075, 109.57696978044471, 286.09)

Projected Coordinates (X, Y) - EPSG:32649
North-East (X, Y): (381280.2694, 3820289.963)
South-West (X, Y): (369218.2804, 3808692.301)

Classifications:
Class 0 (Created, never classified)108,866,980
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