DOI: https://doi.org/10.5069/G9833Q6Z
OT Collection ID: OT.052022.32648.1
OT Collection Name: Survey of 1920 Haiyuan Earthquake Rupture, China 2013-2017
Short Name: CN17_Ou
Collection Platform: Structure from Motion / Photogrammetry

----------------------------------------------------------

Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.052022.32648.1
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.052022.32648.1


----------------------------------------------------------

Collection Overview: This dataset covers the 170 km-long western and middle sections of the 1920 Haiyuan Earthquake surface rupture across Gansu and Ningxia, China. The data is photogrammetrically derived from 0.5 m-resolution tri-stereo Pleiades optical imagery acquired by Airbus Defence and Space using the ERDAS IMAGINE software

Dataset Acknowledgement: This data was produced as part of the work published in the following paper. For more information please see: Ou, Q., Kulikova, G., Yu, J., Elliott, A., Parsons, B., & Walker, R. (2020). Magnitude of the 1920 Haiyuan Earthquake Reestimated Using Seismological and Geomorphological Methods.Journal of Geophysical Research: Solid Earth, 125(8). https://doi.org/10.1029/2019jb019244

Dataset Citation: Ou, Q., Kulikova, G., Yu, J., Elliott, A., Parsons, B., & Walker, R. (2022). Survey of 1920 Haiyuan Earthquake Rupture, China 2013-2017 . Distributed by OpenTopography. https://doi.org/10.5069/G9833Q6Z. Accessed: 2024-12-22

Use License: CC BY 4.0

Dataset Keywords: point cloud, earthquake, photogrammetry, Pleiades, Haiyuan, china

Survey Date: 04/23/2013 - 08/14/2017
Publication Date: 05/27/2022

----------------------------------------------------------

Data Provider and Roles:
	1. University of Oxford
	Role: Author
	Url: Not Available.

	2. Institute of Geology, China Earthquake Administration
	Role: Author
	Url: Not Available.

	3. United States Geological Survey
	Role: Author
	Url: Not Available.

	4. University of Potsdam
	Role: Author
	Url: Not Available.

	5. University of Oxford
	Role: Principal Investigator
	Url: Not Available.

	6. University of Oxford
	Role: Principal Investigator
	Url: Not Available.


----------------------------------------------------------

Total number of points: 7,502,422,215 pts

Area: 1,720.8 km^2

Point Density: 4.36 pts/m^2

Classifications: 
	Class 0 - Never classified: 7,495,796,052
	Class 7 - Low Point (low noise): 6,626,163
Coordinates System: 
	Horizontal: WGS84 / UTM Zone 48N Meters [EPSG: 32648]
	Vertical: Ellipsoid

Survey Report: https://object.cloud.sdsc.edu:443/v1/AUTH_opentopography/www/metadata/CN17_Ou_metadata.pdf

LAS Validation Data Report: https://portal.opentopography.org/lasReport?opentopoID=OTLAS.052022.32648.1

----------------------------------------------------------

Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.052022.32648.1&download=true

Dataset Spatial Bounds:
	North: 37.1122431206753°
	South: 36.0518600536132°
	East: 106.116261893757°
	West: 103.984435620397°